JAERI-Tech99-003

JP9950111

HIGH GAMMA-RAYS IRRADIATION TESTS OFCRITICAL COMPONENTS FOR ITER (INTERNATIONAL

THERMONUCLEAR EXPERIMENTAL REACTOR)IN-VESSEL REMOTE HANDLING SYSTEM

February 1999

Kenjiro OBARA, Satoshi KAKUUATE

Kiyoshi OKA, Hiroshi TAGUCHI, Akira ITO

Koichi KOIZUMI, Kiyoshi SHIBANUMA

Toshiaki YAGI, Yosuke MORITA

Takao KANAZAWA and Eisuke TADA

Japan Atomic Energy Research Institute

- Mi,(T319-1195

(T319-H95

This report is issued irregularly.Inquiries about availability of the reports should be addressed to Research

Information Division, Department of Intellectual Resources, Japan Atomic EnergyResearch Institute, Tokai-mura, Naka-gun, Ibaraki-ken T319—1195, Japan.

©Japan Atomic Energy Research Institute, 1999

JAERI-Tech 99-003

High Gamma-Rays Irradiation Tests of Critical Components for ITER (International

Thermonuclear Experimental Reactor) In-vessel Remote Handling System

Kenjiro OBARA, Satoshi KAKUDATE, Kiyoshi OKA, Hiroshi TAGUCHI * ,

Akira ITO ** , Koichi KOIZUMI, Kiyoshi SHIBANUMA,Toshiaki YAGI+ ,

Yosuke MORITA+ ,Takao KANAZAWA + + and Eisuke TADA

Department of Fusion Engineering Research

Naka Fusion Research Establishment

Japan Atomic Energy Research Institute

Naka-machi, Naka-gun, Ibaraki-ken

(Received January 5 ,1999)

In ITER, the in-vessel rermote handling is inevitably required to assemble and

maintain the activated in-vessel components due to deuterium and tritium operation.

Since the in-vessel remote handling system has to be operated under the intense of

gamma ray irradiation, the components of the remote handling system are required to

have radiation hardness so as to allow maintenance operation for a sufficient length of

time under the ITER in-vessel environments. For this, the Japan, European and Russian

Home Teams have extensively conducted gamma ray irradiation tests and quality

improvements including optimization of material composition through ITER R&D

program in order to develop radiation hard components which satisfy the doses from 10

MGy to lOOMGy at a dose rate of lxlO6 R/h (ITER R&D Task : T252).

This report describes the latest status of radiation hard component development

which has been conducted by the Japan Home Team in the ITER R&D program. The

mumber of remote handling components tested is about seventy and these are categorized

This activity is credited as an ITER Technology R&D and this report describes the test results and latest

status of 1998 ITER R&D Task (T252).

+ Department of Material Development, Takasaki Radiation Chemistry Research Establishment

+ + Advanced Radiation Technology Center, Takasaki Radiation Chemistry Research Establishment

>K On leave from Nuclear Engineering Co., Ltd.

>K£K On leave form Ishikawajima-Harima Heavy Industries Co., Ltd.

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into robotics (Subtask 1), viewing system (Subtask 2) and common components (Subtask

3). The irradiation tests, including commercial base products for screening, modified

products and newly developed products to improve the radiation hardness, were carried

out using the gamma ray irradiation cells in Takasaki Establishment, JAERI. As a result,

the development of the radiation hard components which can be tolerable for high

temperature and gamma radiation has been well progressed, and many components, such

as AC servo motor with ceramics insulated wire, optical periscope and CCD camera, have

been newly developed.

Keywords : Gamma Irradiation Test, Radiation Hardness, Actuators, Lubricants, Sensors,

Optical Parts, Electric Wires, Remote Maintenance, ITER

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Contents

1. Introduction 1

2. Outline of the Task 1

2.1 Radiation Fields 1

2.2 Task Description 2

3. Task Sharing 3

3.1 Subtask-1 (Robotics) 3

3.2 Subtask-2 (Viewing System) 3

3.3 Subtask-3 (Common Components) 4

4. Deliverables 4

4.1 Final Task Report 4

5. Test Facilities, Conditions and Dosimetory 5

5.1 Test Facilities 5

5.2 Test Conditions 5

5.3 Calibration of Exposure Dose Rate 5

6. Tested Components 6

6.1 Subtask-1 : Robotics 6

6.1.1 Drives 6

6.1.2 Sensors 8

6.2 Subtask-2 : Viewing Systems 10

6.2.1 CCD Camera System 10

6.2.2 Optical Parts 11

6.2.3 Image Fiber 13

6.3 Subtask-3 : Common Components 14

6.3.1 Cables/Wires/Connectors 14

6.3.2 Instrumentation Devices 20

6.3.3 Other Common Materials 21

7. Test Results 24

7.1 Subtask-1 : Robotics 24

7.1.1 Drives 24

7.1.2 Sensors 24

7.2 Subtask-2 : Viewing Systems 25

7.2.1 CCD Camera System 25

7.2.2 Optical Parts 25

7.2.3 Image Fiber 26

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7.3 Subtask-3 : Common Components 27

7.3.1 Cables/Wires/Connectors 27

7.3.2 Instrumentation Devices 29

7.3.3 Other Common Materials 29

8. Conclusions and Recommendations 31

Acknowledgments 32

References 32

Appendix 1 Specifications of Gamma Irradiation Cell 33

Appendix 2 Dosimetry (Characteristics of Alanine Dosimeter) 41

Appendix 3 Summary of Gamma Irradiation Tests Results of Critical Components for

Remote Handling System 45

Appendix 4 Summary, Data sheets, Tables and Figures [Subtask-1 : Robotics] 55

Appendix 5 Summary, Data sheets, Tables and Figures [Subtask-2 : Viewing Systems] 157

Appendix 6 Summary, Data sheets, Tables and Figures [Subtask-3 : Common

Components] 221

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1. INTRODUCTION

In-vessel remote handling system[l] is essential for fusion experimental reactor[2] so asto assemble and maintain the activated components due to DT operation. Since the remotehandling system has to be operated under a temperature from 50°C to 200°C, an intensivegamma ray environment(over 3x10^ R/h) and a high vacuum(ca. 10~5 Pa) or inert gas such as adry nitrogen, the components are required to have sufficient durability to allow maintenanceoperation for a sufficient length of time under severe environmental conditions. For this,extensive irradiation tests and quality improvements of the components includingoptimization of material composition have been conducted to develop radiation hardcomponents which can be tolerable in ranging from 10 MGy to 100 MGy at a dose rate ofabout 10&R/h[3], [4].

This report covers the gamma ray irradiation tests according to the Agreement of ITERR&D Task (T252) in 1995 and describes radiation hardness of the standard components forthe ITER remote handling system which are categorized into the Robotics (Subtask-1), theViewing systems (Subtask-2) and the Common components (Subtask-3). The componentstested include commercial products for screening, modified products and newly developedproducts to improve the radiation hardness. The total number of tested components is aboutone hundred and the number of components in each subtask is apporoximately 40 forSubtask-1, 20 for Subtask-2 and 40 for Subtask-3.

The gamma-ray irradiation tests have been conducted mainly using No. 2 and No. 3 cellsin the No. 1 cobalt sixty building of Takasaki Radiation Chemistry Establishment, JAERI.The radiation source is cobalt sixty (Co-60), and the maximum dose rate of No. 2 and No. 3cells is about 1x10^ R/h and 2x106 R/h, respectively. The environmental conditions of theirradiation tests are described below and all of components excepting electrical wires andinsulation materials have been tested in the No. 2 cell.[ No. 2 cell: atmosphere and ambient temperature, No. 3 cell: vacuum, air or nitrogen gas andhigh temperature up to 35O°C ]

As a whole, many of components have been irradiated up to the rated accumulation doseof around 100 MGy and the following main results are obtained. The newly-developed ACservo motor and periscope for radiation use have shown excellent durability with the radiationhardness tolerable for more than 50 MGy and 100 MGy, respectively. An electricalinsulators made of macromolecule materials have also shown no degradation of electricalcharacteristics after the irradiation of 100 MGy. As for polyimide insulated wires, themechanical and electrical characteristics are not degraded after the irradiation of 100 MGy andmore radiation hardness can be expected than the anticipation. In addition, a radiation hardCCD camera system, which was fabricated by replacing with a radiation hard objective lensand adopting the modified camera control unit showed three times higher radiation hardnessthan standard type CCD camera [5]. On the contrary, standard position sensors such asrotary encoder show extremely low radiation hardness and further efforts have to be made forimprovements.

2. OUTLINE OF THE TASK

The followings are outline of the radiation fields and the task description, which arerefered from the Task Agreement.

2.1 Radiation fields

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The radiation fields where the standard components are used could be categorized into thefollowing three for convenience' sake:

(a) High radiation intensity field (first wall and blanket region)> 1()6 R/h (gamma-ray dose rate, after shutdown)> 1015 / m2 • s (during operation, neutron and gamma-ray fluxes)

(b) Medium radiation intensity field (vacuum vessel region)> 105 R/h (after shutdown)> 1012 / m2 • s (during operation)

(c) Low radiation intensity field (cryostat region)> 105 ~ 103 R/h (after shutdown)> K ) l 2 ~ 1 0 5 / m 2 - s (during operation)

( * neutron irradiation test does not include in the T252 Task.)

2. 2 Task description

The components to be tested will be deleted or newly added in future on the basis of theinterim reviews of the task. Detailed technical specifications for, such as test specimens,expected life time, irradiation conditions and measuring methods will be determined anddescribed in 'Technical Specifications for Irradiation of Standard Components' prior to thetask start on the basis of the agreement between JCT and implementing HTs.

A unit of test specimen to be irradiated in this task is 'component' though irradiation oflower level items such as 'part', 'element1, and 'material' might be required in some cases. Here,'component' is defined as follows; included in equipment or systems; combination of two ormore parts; capability to show certain function independently. For example, a motor is'component' which consists of many 'parts' such as coil, insulator, lubricant, wire, sensor andso on.

(1) Subtask-1 (Robotics)

Subtask-1 includes the components used for in-vessel transporters and robotics which areirradiated by the gamma-ray from the activated in-vessel components during the machinemaintenance. The components are categorized into two groups; drives and sensors.Information from the design task of the related systems should be fully considered in selectingthe components to be tested. The purpose of this subtask is not simply to determine lifetimeof each part or element, but to demonstrate that the component or equipment which consistsof those parts and elements works with expected performance and for an expected period oftime.

Major components- Drives (motors)- Sensors• position sensors • force sensors• distance sensors • accelerometers• proximity sensors • ultrasonic sensors (including sensors for non-destructive examination)• tactile sensors

(2) Subtask-2 (Viewing systems)

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Subtask-2 includes the components used for in-vessel viewing systems (includingfiberscope and periscope) and inspection systems which are irradiated by the gamma-rayfrom the activated in-vessel components during the machine maintenance. The componentsare categorized into three groups; cameras, optical parts and fibers. Information from thedesign task of the related systems should be fully considered in selecting the components tobe tested. The purpose of this subtask is not simply to determine lifetime of each part orelement, but to demonstrate that the component or equipment which consists of those partsand elements works with expected performance and for an expected period of time.

Major components- Cameras• ITV cameras • CCD cameras

- Laser viewing- Optical parts (periscope)- Optical fibers (fiberscope)

(3) Subtask-3 (Common components)

Subtask-3 includes the standard components commonly used in many systems bothunder the neutron and gamma-ray mixed environment during reactor operation and pure decaygamma-ray environment during reactor shutdown. The components are categorized into fourgroups;

- Wires, cables and connectors- Optical fibers, cables and connectors- General instrumentation devices (such as gauges, thermocouples, radiation monitors)- Common materials (such as insulator, lubricant and window, etc.)

Major components- Cables, wires, connectors- Optical fibers, connectors- Instrumentation devices- Other common materials• insulators • lubricants • seal materials

3. TASK SHARING

These subtasks were shared by three HTs (EC, JA and RF Home Teams) because thearea of target components are very broad and simultaneous availability of irradiation facilityshould be ensured. The followings are the task items conducted by Japan Home Team.

3.1 Subtask-1 (Robotics)

- Drives (motors)- Sensors• position sensors • force sensors• distance sensors • accelerometers• proximity sensors

3. 2 Subtask-2 (Viewing systems)

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- Cameras• CCD camera

- Optical parts (periscope)- Optical fibers (fiberscope)

3. 3 Subtask-3 (Common components)

- Cables, wires, connectors- Instrumentation devices• vacuum gauges

- Other common materials• lubricants • seal materials

4. DELIVERABLES

4. 1 Final task report

HTs must present the formal final report to JCT for review and approval according to the'Final Report Review and Acceptance' procedure which is to be determined separately. Thisreport must include the following items:

(1) Results of market survey including commercial and existing irradiation data base.(2) Detailed specifications of tested components. Describe what part of the component is

modified or newly developed.(3) Detailed description of the testing methods, including radiation source information,

dosimetry, testing setup, test sample specification, and property measuring technique.(4) Test results including both measured data and corrected values.(5) Definition of irradiation test campaigns to further modify or develop the ITER relevant

radiation-hard components.(6) The final specifications of radiation-hard components. 'The final specifications' must

define materials, elements, and configurations which can be used in the selected ordeveloped radiation-hard components.

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5. TEST FACILITIES, CONDITIONS AND DOSIMETORY

5.1 Test facilities

The candidate components tested have been irradiated mainly using No. 2 and No. 3gamma-ray cells in the No. 1 Co-60 building of Takasaki Establishment, JAERI. Appendix 1shows the major specifications of these gamma-ray cells.

In the No. 2 cell, the shape of the radiation source is a slab type and consequently thegamma flux can be uniform in wide area. Radiation activity of the source is estimated to be211 KCi and the dose rate range is from 1.5x10^ R/h to 2.2x10^ R/h depending on the distancefrom the source. Most of the components related to the subtask 1 and subtask 2 have beenirradiated in this cell.

The shape of the source in the No. 3 cell is a cylindrical type and therefore the dose rateat the center is relatively intense compared with the No. 2 cell but the irradiation area islimited [5]. Radiation activity of the source is 189 KCi and the dose rate range is from 1.7x10^R/h to l.lxl()5 R/h. The electric wires and insulation materials related to the subtask 3 havebeen irradiated in this cell.

5. 2 Test conditions

The interior environment in the both cells is not conditioned although fresh air is alwaysblown to exhaust ozone. Consequently, the environmental conditions of the irradiation testsare basically the atmosphere and ambient temperature with humidity. However, thetemperature and the pressure inside the irradiation chamber in the No. 3 cell can be adjustedup to 350°C and lxl0~3 Torr, respectively. The electric wires and insulation materials havebeen irradiated in this chamber under the nitrogen gas of atmospheric pressure and 250°C.

5. 3 Calibration of exposure dose rate

Alanine dosimeter, ferrous sulphate, PMMA* dosimeter, TLD** and others can be usedallowable for gamma ray dosimeters [6]. Among the above dosimeters, alanine dosimeter hashigh degree of accuracy, wide measurable dose range and long term stability after irradiation.Accordingly, an alanine dosimeter named AminograyTR, which is composed of alanine of 70wt% and polystyrene of 30 wt%, was used for calibration of exposure dose rate on the testedcomponents. ESR spectrometer was used as a readout system from the alanine dosimeter.Appendix 2 shows major characteristics of the Aminogray [7].

* Polymethyl meta-acrylate, ** Thermoluminescence dosimeter

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6. TESTED COMPONENTS

Typical features of the tested components are described below and their details are givenin Appendixes (including data sheets, tables and figures) 4, 5 and 6.

6. 1 Subtask-1 : Robotics

Subtask-1 is classified into two groups. One of them is the drives and another is thesensors. Both groups are essential components for in-vessel remote handling system. Thedrives consist of motors and lubricants^earings, and the sensors consist of position sensors,distance sensors, proximity sensors, tactile sensors, force sensors and accelerometers. In thetask, AC servo motor, induction motor, grease lubricants and ball bearings have been tested asthe drives, and position sensors, distance sensors, proximity sensors, force sensors andaccelerometers have been tested as the sensors.

6. 1.1 Drives

(1) AC servo motorThree AC servo motors (the 1st, 2nd and 3rd phases) with resolver as a position sensor

are newly developed products. And these stators and resolver coils are insulated withceramics but the only resolver coil of the 3rd phase motor is insulated with polyimide. Theother materials except the lubricants are basically the same as those of commercial motor. The3rd phase AC servo motor is compact and light weight compared with the 1st and 2nd phasemotors but the rated specifications, such as power and torque are larger than the others. Thefollowings are the main specifications of the 3rd phase AC servo motor.

- Supplier : Yasukawa Electric Co.- Power : 452 W - Torque : 15 kgf • cm- Rotation speed : 3,000 rpm- Dimensions and weight : 80 mm in dia. x 178 mm in length, 5 kg- Insulator

• Stator coil : Ceramics (SiO2) • Resolver : Polyimide- Materials

• Housing and shaft : Al alloy, SS • Conductor : Ni coated on Cu• Rotor : Magnet (Sm - Co)

- Lubricant for ball bearing : Solid lubricant

(2) Induction motorCeramics insulated wires show a good radiation hardness although their issues are low

adhesive and flexible capabilities. In addition, fabrication of the ceramics insulation motors isdifficult compared with the fabrication of vainish insulation type motors. On the other hand,the varnish is low in durability to radiation and high temperature conditions. But polyimideinsulated wires which is a kind of varnish have an advantage in terms of mechanical flexibilityand excel in durability to these environmental conditions. For this, a prototype 400-Winduction motor with polyimide insulation was fabricated for high temperature use and hasbeen irradiated at temperature of 200°C in nitrogen gas. The followings are main specificationsof the polyimide insulation induction motor.

- Supplier : Hitachi Works Co.- Power : 400 W - Torque : 27 kgf • cm

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- Rotation speed : 1,500 rpm- Dimensions and weight: 130 mm in dia. x 225 mm in length, 10 kg- Insulator : Polyimide- Materials

• Housing and shaft : Steel, SS • Conductor : Ni coated on Cu• Rotor: Steel

- Lubricant for ball bearing : Grease lubricant

(3) Grease lubricantGrease lubricants are generally handy and inexpensive compared with the solid lubricants

although major concerns of the grease lubricants are hardening due to radiation and wearingunder high temperature operation. In order to improve these unfavorable characteristics, agrease lubricant (GK-1) has been developed by modifying the base oil and thickeners and thiswas applied to the ball bearing of the 1st phase AC servo motor. As a result, hardness of thegrease lubricant is gradually increased in proportion to doses and its radiation limit isestimated to be 10 MGy [4]. To increase radiation hardness, 4 types of grease lubricants,which are GS-1, GS-4, GS-7 and GS-13-2 as listed below, are fabricated as the 2nd generationgrease with a combination of base oils and thickeners, such as di-alkyl-tetra-phenylether(R2-4P2E), tetra-phenylether(4P2E), penta-phenylether(5P4E) and mono-alkyl-tetra-phenyl-ether(R-4P2E).

- Supplier : Matsumura Oil Research Co.- Specimen No. GS-1

• Composition : R2-4P2E (100 %), Original penetration (OP) 288- Specimen No. GS-4

• Composition : 4P2E (100 %), OP 266- Specimen No. GS-7

• Composition : R2-4P2E (60 %) / /5P4E (40 %), OP 265- Specimen No. GS-13-2

• Composition : R-4P2E (70 %) / /4P2E (30 %), OP 265

(4) Ball bearingA ball bearing is an elementary component of mechanical drives for remote handling

system and life time of the bearing strongly depends on lubrication of the retainer. Somemacromolecule materials and self-lubricating alloys are promising materials as the retainer forradiation use. For this, three kinds of macromolecule materials (A, B, C types) and two kindsof self-lubricating alloys (D, E types) have been applied to the retainer of the ball bearing. Inaddition, one ceramics type ball bearing without retainer (F type) is selected and these ballbearings have been tested under complex environmental conditions (gamma-ray in air orvacuum). The major specifications of these ball bearings fabricated are described below.

- Supplier : Yasukawa Electric Co., Koyo Bearing Co.- Bearing type : Angular type- Dimensions : 42 mm out. dia., 20 mm in. dia., 12 mm thickness- Material of retainer or separator

• Type A : Thermoplasticity polyimide• Type B : Thermosetting polyimide• Type C : Poly-ether-ether-keton (PEEK)• Type D : Self-lubricating alloy (SL alloy) (W - Cu )• Type E:SL alloy (SS310)

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• Type F : without retainer (ball: ceramics (SiN))

(5) Reduction gear boxA reduction gear box is combined to use with a motor. The Harmonic Drive type

reduction gear box is simple in structure and is low in amount of grease for lubricationcompared with other types. Two types of Harmonic Drives which are lubricated two kinds ofgreases were tested.

- Supplier : Harmonic Drive Co.- Gear ratio : 1 / 50 - Torque : 15 kgf • cm- Rotation speed : 3,500 rpm - Starting torque : less than 40 kgf- cm- Dimensions and weight : 33 mm in dia., 76 mm in length, 125 kgf- Lubricant: Grease ( SK-2 : std. type, GK-1 : rad-hard type )

6.1. 2 Sensors

(1) Position sensorRadiation hard position sensors are indispensable for sensing and positioning the

posture both of remote handling system and of in-vessel components to be maintained. Inorder to develop such position sensors, a number of commercial base position sensors areselected and irradiated as a screening test. The tested position sensors are wire-wound typepotentiometer, magnet-resistive type potentiometer, differential transformer, synchronousresolver and rotary encoder. In addition, an optical-fiber type encoder, which is newlydeveloped for radiation use, is also tested. The followings are major specifications of thesesensors.

a) Potentiometer (wirewound type)- Supplier : Midori Sokki Co.,- Model : CP-4M- Resistance : 1 kQ, - Rotational range .350°- Linearity : ± 0.5 % -Torque : 8 gf • cm- Dimensions and weight : 36.5 mm o.d., 20.5 mm length, 50g

b) Potentiometer (magnet resistive type)- Supplier : Midori Sokki Co.- Model : CP-2URBM- Input impedance : 15 kQ - Rotational range : ± 45°- Linearity : ±1.5 % FS - Torque : 5 gf • cm- Dimensions and weight: 30 mm o.d., 100 mm length, 50g

c) Differential transformer- Supplier : Shinko Electronics Co.- Model : ST-2- Exciting frequency : 300 kHz - Exciting voltage : 1 Vrms- Output : ± 4 V - Input impedance : 200 Q.- Linearity range : 10 mm ± 1 %- Dimensions and weight: 12 mm o.d., 87 mm length

d) Synchronous resolver- Supplier : Minebea Co.

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- Model : 23BCX-9007-A01- Frequency : 50 / 60 Hz - Primary voltage : 100 V- Secondary voltage : 90 V - Input impedance : 700 O- Dimensions and weight: 57 mm o.d., 127 mm length

e) Rotary encoder- Supplier : Tamagawa Seiki Co.- Model: E6B-CWZ3E- Resolving power : 10 ppr - Output form : voltage- Responsive frequency : 30 kHz - Step response : 1 us- Torque : 10 gf • cm- Dimension and weight: 40 mm o.d., 39 mm length

f) Optical fiber used encoder- Supplier : Macro Servo Inc.- Model : Prototype- Resolving power : 10 ppr - Output form : voltage- Dimension and weight: 50 mm o.d., 83 mm length

(2) Force sensorAs for the force sensors, foil type and capsule type strain gauges are selected and tested.

The foil type and the capsule type strain gauges are commercial products with high heatresistance and thus high radiation hardness can be expected. The maximum operatingtemperature of the foil type and the capsule type gauges is 35O°C and 550°C, respectively.The base material of the foil type is a combination of alumina, and the capsule type is made ofSS316. The major specifications of both gauges are described below.

a) Foil type- Supplier : Kyouwa Electronic Instruments Co.- Model: KFU- Gauge element: Ni-Cr - Base : Polyimide / Alumina- Adhesive : Polyimide / Alumina - Lead wire : Ni coated Cu / Polymer insulator

b) Capsule type- Supplier : Kyouwa Electronic Instruments Co.- Model : KHC- Gauge element: Ni-CrV - Base : SS316- Adhesive : Point welding- Lead wire : MI cable (the wire covered with MgO and SS tube)

(3) Distance sensorA distance sensor is an indispensable component for remote handling system. Generally,

a distance sensor by laser is in popular use but the detectable distance between the sensor andobject is small. For this, a newly-developed laser distance sensor with optical fiber use hasbeen fabricated as well as the standard type laser sensor.

- Supplier : Keyence Co.- Model : LB-01 (commercial type)- Detectable range : ± 40 mm from std. position of 100 mm- Laser : 780 nm / 3 mW (semicon.) - Laser spot : 1 ~ 2 mm

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- Linearity : 1.6 %- Dimensions and weight: 46 x45.5 x 17 mm, 165 g

- Supplier : Akita Electric Co.- Model : Newly-developed- Detectable range : 800 ~ 1,200 mm - Accuracy : 1 mm- Laser : 685 nm / 7 mW (semicon.)- Materials of fiber and lens : Synthetic quartz- Dimensions : 50 x 330 x 294 mm

(4) Proximity sensorOn the first step, five kinds of proximity sensors (namely, capacitance, magnet, optical,

ultra-sonic and high frequency types) were tested as a screening gamma-ray irradiation test.As a result, the sensors except the magnet type sensor were troubled at early stage of thescreening test, therefore, the magnet type proximity sensor was tested only.

- Supplier : Izumi Electric Co.- Model :4FRl-6-J- Detectable distance : 10 mm - Detectable material: Fe, Ni, Co and these alloy- Response time : 1 msec

(5) AccelerometerAccelerometer is needed to detect an inclination of remote handling equipment. In this

gamma irradiation test, servo re-balance type accelerometers with high accuracy made of aerialcomponent were tested.

- Supplier : Japan Aerial Electric Industry Co.-Model : JA-5GA55- Detectable range : ± 2 G - Resolution capability : < lxl 0'^- Non-linearity : ± 1.5 % - Allowable temp. : -40 ~ 150°C- Dimensions and weight: 25.4 mm in dia., 21.6 mm in length, 50 g

6. 2 Subtask-2 : Viewing systems

The viewing system in subtask-2 is classified into three groups. One of them is camerasand others are optical parts and optical fibers. Development of radiation hardness of thesecomponents is essential for in-vessel viewing systems and operation of remote handlingsystems. The cameras consist of ITV and CCD systems and the Japan HT has conducted thegamma irradiation test and radiation hard development of CCD camera system. The opticalparts consist of main six components, which are periscope, reflecting mirror, glass, adhesivefor lens, anti-reflection coating materials for lens and lighting. As for the optical fiber, twokinds of image fibers was tested. The followings are the outline of these components.

6. 2.1 CCD camera system

On the first stage, standard type CCD cameras were irradiated at different dose ratesranging of 1 -100 Gy/h in order to clarify the irradiation effect on their electrical and opticalcharacteristics. Based on this result, a radiation hard type CCD camera system has been

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developed by replacing with a radiation hard objective lens and adopting an improved cameracontrol unit with new electric circuits to correct the electric degradation [5].

(1) Standard type CCD cameraThree standard type CCD camera heads with objective lenses were irradiated at different

dose rate of 1.02x102, 1.09xl03 and lxlO4 R/h. In this camera system, the camera control unit(CCU) is separated from the camera heads.

- Supplier : Toshiba Co.- Model: IK-40 with CCU- CCD : 1/2 inch ccd image sensor, color type, 768 H x 494 V- Resolution : Horizontal 460 TV lines, Vertical 350 TV lines- Objective lens : JK-L12 (f = 12 mm)

(2) Radiation hard type CCD cameraThe radiation hard type CCD camera is the same commercial base products. In order to

improve the radiation hardness of the CCD camera, a radiation hard lens and new electriccircuits to correct the electric degradation have been adopted to the objective lens and theCCU, respectively.

- Supplier : Toshiba Co. /MINOLTA Co.- Model : IK-40 with modified CCU- CCD : 1/2 inch ccd image sensor, color type, 768 H x494 V- Resolution : Horizontal 460 TV lines, Vertical 350 TV lines- Objective lens : Newly-developed (f = 12 mm)

6. 2. 2 Optical parts

(1) PeriscopeA standard type periscope (namely, non radiation hard type, periscope-1) which is a

commercial product was tested as a screening before the development of radiation hard typeperiscope (periscope-2). The results have shown that the observation capability of thestandard type periscope is limited up to about 1 kGy at a dose rate of about lxl0^ R/h,which corresponds to ranging of 10 ~ 30 minutes operation in the ITER in-vesselconditions[9], [10].

In the 2nd step of the development, the periscope-2 which is made of radiation hardmaterials has been fabricated for irradiation tests. In this periscope, cerium oxide (CeO2)contained alkaline barium glass (NB glass) and lead glass (LX glass), and hydroxyl group (OH)doped synthetic quartz (P-l 10) are chosen for the objective and relay lenses, and no adhesivematerial is used for assembling the lens. As for the reflecting mirrors for change of opticalalignment, aluminum coated mirrors are used from the high reflectance efficiency standpoint.The overall configuration and dimensions of the periscope-2 are the same as those of theperiscope-1.

After the 1st stage irradiation test of the periscope-2, a zooming mechanism(magnification : x 3) was attached to tip of the periscope-2 (periscope-3). The measurementsystem including picture observation consists of CCD camera, video monitor, videotypewriter and CRT. The followings are main specifications of the periscope-3.

- Supplier : MINOLTA Co.

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- Model : Newly-developed- Optical arrangement: 1 objective lens, 6 relay lenses, 4 reflecting mirrors- Magnification of zooming : x3 with auto focusing mechanism- Materials of lenses : CeO2 contained alkaline barium glass and lead glass,

OH doped synthetic quartz- Material of reflecting mirror : Al coated on synthetic quartz- Dimensions of periscope body : 80 mm in dia., 6 m in length

(2) Reflecting mirrorIn general, aluminum coated reflecting mirror has a good reflectance capability but the

surface erosion will be an issue under intensive irradiation condition. In this investigation,chromium nitride (CrN) coated mirror and platinum (Pt) coated mirror are chosen ascandidates for radiation use and aluminum (Al) coated mirror is also tested as a reference. Thefollowings show the main specifications of the mirrors.

- Supplier : Japan Vacuum Metallurgy Co.- Model : Newly-developed- Materials of mirrors : CrN coated on SS 304 (Coating film thickness : 1, 3, 5 urn)

Pt coated on SS 304 (Coating film thickness : 0.2 urn)Al coated on SS 304 (Coating film thickness : 0.1, 0.3 urn)

- Dimensions : 50 x 50 x 2 t mm

(3) Glass materialAlthough about two hundred kinds of glasses are generally available for optical lens

application, most of these glasses are not radiation hardness. Among them, we have selectedthree kinds of glasses, such as CeO2 contained alkaline barium glass (NB) and lead glass (LX),and OH doped synthetic quartz since they are potentially radiation hard and applicability tothe periscope can be foreseen. The followings are main specifications of the glass specimen.

- Supplier : Japan Electric Glass Co., Shinetsu Quartz Co.- Material of glass : CeO2 contained alkaline barium glass

CeO2 contained lead glassOH doped five kinds of synthetic quartzes

- Dimensions : 3 0 x l 5 x l 0 t mm

(4) Adhesive for lensAdhesive material based on resin is utilized for assembly of lens but the radiation

resistance of the resin is naturally low. Two kinds of adhesives, denaturation polyester resinand thermosetting epoxy resin have been chosen for investigating the adhesion capabilityunder the gamma ray radiation conditions and the adhesion samples assembled between NBglass and LX glass have been irradiated.

- Supplier : Electric Chemical Indust.,/Cemedine Co.- Materials of adhesives : Denaturation polyester resin

Thermosetting epoxy resin

(5) Anti-reflecting coating materialAnti-reflecting coating material is generally coated on the lens surface for taking many

light. A coating film, which is composed of three layers made of inorganic materials wasdeveloped and combined to test with the radiation hard glasses.

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- Supplier : MINOLTA Co.- Materials and thickness : SiO2 ( 85 nm)

TiO2 + ZrO2( 119nm)A12O3 ( 77 nm )

- Coated glass materials : CeO2 contained alkaline barium glass and lead glassOH doped synthetic quartz

(6) Halogen lampLamps are indispensable component for the lighting device of in-vessel viewing system.

Halogen lamp can provide a high illuminance with small-size. In this investigation, ratedwattage of 500 W halogen lamps with frost finishing quartz bulb and ceramics terminal wereselected and tested.

- Supplier : Toshiba Lightec Co.- Model: JP100V500W2F- Rated voltage : 100 V - Rated wattage : 500 W- Luminous flux : 11,000 lm - Efficiency.: 22 lm / W- Dimensions : 10 mm in dia., 118 mm in length

6. 2. 3 Image fiber

(1) OH doped image fiberHydroxyl group (OH) doped synthetic quartz optical fiber is well-known as a radiation

hard image fiber. In this investigation, a image fiber with the following specifications isfabricated and tested under intensive gamma ray.

- Supplier : Fujikura Co.- Model : Prototype- Materials of fiber and lens : Synthetic quartz ( OH : 800ppm), Crystal- Number of core : 20,000,- Dimensions : 13 mm in dia., 12 m in length

(2) Fluorine doped image fiberFluorine (F) doped synthetic quartz optical fiber is well-known as a radiation hard image

fiber too [11] and tested for comparing with the data of OH doped image fiber.

- Supplier : Mitsubishi Electric Cable Co.- Model : Prototype- Materials of fiber and lens : Fluorine doped synthetic quartz, Synthetic quartz- Number of core : 20,000,- Dimensions : 8 mm in dia., 12 m in length

(3) Recovery treatment to OH doped image fiberA high temperature treatment in hydrogen gas was carried out to radiation-damaged OH

doped image fiber. The treatment was conducted two times to the same image fiber atdifferent accumulation dose. As a result, the treatment showed that the second treatment wasnot effective to recover compared with the first recovery treatment. Treatment conditions areas follows.

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- Supplier : Fujikura Co.- Temperature : 200°C - Atmosphere : Hydrogen gas- Processing time : 48 hr- Doses of treated image fibers : 1 st stage 28.3 MGy

2nd stage 8.52 MGy (after the 1st stage treatment)

(4) In-situ hydrogen gas treatment to image fiber under gamma irradiationThe treatment mentioned above was processed after irradiation with exclusive equipment

but the in-situ treatment can be conducted without breaking the observation. In case of the in-situ treatment, since hydrogen gas has to be always flowed outside the image fiber, hightemperature baking is avoided. The treatment was carried out in the No. 3 cell in Co-60building and treatment conditions are as follows.

- Temperature : R. T. (ambient) - Atmosphere : Hydrogen gas- Pressure of H2 : 1 kg / cm2 - H2 gas flow : 20 cc / min- Processing time : continue

6. 3 Subtask 3 : Common components

The common components in subtask-3 are classified into four groups, which are thecables/wires/connectors, optical fiber's connectors, instrumentation devices and other commonmaterials. These components are commonly used for many equipment including the subtask-1 and subtask-2. In Japan HT, three groups except the optical fiber's connectors have beenconducted. The cables/wires/connectors are composed of electric parts including cable, wire,thermocouple, connectors and insulation materials. The instrumentation devices are composedof vacuum gauges, and ultra-sonic transducers as a sensor of non-destructive inspections. Theoutline of these components are as follows.

6. 3.1 Cables/Wires/Connectors

[ Cables ]

(1) Power & Signal cables for rad-hard AC servo motorTwo types of electric cables, power cable and signal cable are fabricated for the

application to the rad-hard AC servo motors and both cables have been irradiated and testedas an assembly of the motor. These cables are fully insulated with ceramics. The followingsare specifications of the cables.

a) Power cable for the rad-hard. AC servo motor- Supplier : Sumitomo Electric Indust.- Model : Prototype- Number of wire . 3 - Material of the insulators : Alumina- Breakdown voltage : 200 - 1,000 V- Critical diameter of curvature : 5 - 30 mm- Dimensions : 6.5 mm in dia., 6 m in length

b) Signal cable for the rad. hard. AC servo motor- Supplier : Sumitomo Electric Indust.- Model : Prototype

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- Number of wire : 7 - Material of the insulators : Alumina- Breakdown voltage : 200 - 1,000 V- Critical diameter of curvature : 5 - 30 mm- Dimensions : 5.15 mm in dia., 6 m in length

(2) Thermocouple cable for rad-hard AC servo motorThis thermocouple cable is also insulated with ceramics for radiation use and has been

irradiated, together with the AC servo motors. All of the insulators are the same as 6.3-(l).The followings are specifications of the cable.

- Supplier : Sumitomo Electric Indust.- Model: Prototype- Number of wire : 8 (4 pairs of chromel/alumel)- Breakdown voltage : 200 - 1000 V- Critical diameter of curvature : 5 - 30 mm -Material of the insulators : Alumina- Dimensions : 6.5 mm dia., 6m in length

(3) Silicon nitride (SiN) fabric used cableSiN is well-known to endure high temperature condition. For this, SiN fabric used cables

were fabricated and tested for high temperature and intense gamma radiation use and tested.The followings are specifications of the cables.

a) Wire-(H/b-l) type insulator thermocouple- Supplier : Hitachi Cable Co.- Model : Prototype- Diameter of cable/conductor : 13.2 mm / 2.64 mm x2- Composition of insulator : SiN, polyimide, Glass, Mica, SS- Insulation capability : over 10 MQ (at AC 100 V)- Withstanding voltage : 1 min at AC 1.5 kV

(4) Polymer insulated coaxial cablePolyimide and poly-ether-ether-ketone (PEEK) insulation materials used coaxial cable

was fabricated and tested at a high temperature (250°C) in nitrogen gas conditions. Thediameter of this wire is very small in spite of coaxial type, and so the wire will be available asa signal wire. The followings are specifications of these wires.

- Supplier : Showa Cable Co.- Model : Prototype- Conductor materials and diameter : Ni coated on Cu, 0.16 mm- Cable composition : internal conductor / insulator / external conductor /jacket- Materials : Insulator (polyimide), External conductor (SS), Jacket (PEEK)- Thickness of polyimide and PEEK : Polyimide (0.22 mm), PEEK (0.1 mm)- Cable diameter : 1 mm

[ Wires ]

(5) Ceramics insulated wire and imitation coils made used of the wireTwo kinds of wires, Wire-(S/a) and Wire-(S/b), which are nickel coated conductor and

insulated with silicone oxide (SiC»2), are fabricated to the application to motor stator coil and

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sensor coil specimen. Each five stator and sensor coils are fabricated using these wires for theirradiation test. The followings are specifications of the wires and the outline of the coilspecimen.

a) Wire-(S/a) for stator coil specimen- Supplier : Sumitomo Electric Indust.- Model: Prototype- -Tensile strength : 20 - 30 kg / mm2 - Material of the insulators : Silicon oxide- Breakdown voltage : 100 - 500 V- Critical diameter of curvature : 10-30 mm

b) Wire-(S/b) for stator coil specimen- Supplier : Sumitomo Electric Indust.- Model : Prototype- -Tensile strength : 20 - 30 kg / mm2 - Material of the insulators : Silicon oxide- Breakdown voltage : 100 - 500 V- Critical diameter of curvature : 4 mm

(6) Polyimide insulation wiresIn general, ceramics insulated wires show a good radiation hardness although their issues

are low adhesive and flexible capabilities. On the contrary, polyimide insulated wires have anadvantage in terms of mechanical flexibility. For this, in this investigation, polyimide insulatedwires are fabricated and irradiated. The Wire-(H/a-2) listed below is the same as the Wire-(H/a-1) and baked at 250°C for outgassing. The followings are specifications of the wires.

a)Wire-(H/a-l)- Supplier : Hitachi Cable Co.- Model: Prototype- Insulation capability : 1013 Q. - BDV : 10 kV- Adhesive capability : 5 H (pencil hardness)- Critical diameter of curvature : 1 d (d means ouuter diameter of the wire)

b) Wire-(H/a-2)- Supplier : Hitachi Cable Co.- Model : Prototype- Baking temp, and processing time : 300°C / 2hr- Insulation capability : 10 l 2 Q - BDV : 9 kV- Adhesive capability : 5 H (pencil hardness)- Critical diameter of curvature : 1 d (d means ouuter diameter of the wire)

(7) Polyimide/Ceramics insulation wiresThe wires, (H/b-1) and (H/b-2) listed below, are fabricated with a combination of

ceramic and polyimide insulators so as to accommodate their advantages of radiation hardnessand mechanical flexibility. The insulators are composed of two layers: the first layer is siliconoxide and second layer is polyimide. The Wire-(H/b-2) was baked as well as the Wire-(H/a-2)mentioned above. The followings are specifications of the wires.

a)Wire-(H/b-l)- Supplier : Hitachi Cable Co.

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- Model : Prototype- Insulation capability : 9xlO12 Q - BDV : 3 kV- Adhesive capability : 5 H (pencil hardness)- Critical diameter of curvature : 1 -3 d (d means outer diameter of the wire)

b) Wire-(H/b-2)- Supplier : Hitachi Cable Co.- Model : Prototype- Baking temp, and processing time : 300°C / 2hr- Insulation capability : 8xl012 Q - BDV : 2.5 kV- Adhesive capability : 5 H (pencil hardness)- Critical diameter of curvature : 2 - 4 d (d means outer diameter of the wire)

(8) Varnish insulated wiresTwo types of varnish insulation wires, polyimide insulation and polyamideimide

insulation wires, were fabricated and tested at a high temperature (250°C) in nitrogen gasconditions. Here, the varnish type insulator means a thin film of insulation, on the contrary,the polymer type insulator shows a thick insulator compared with the varnish type. Thefollowings are specifications of these wires.

a) Polyimide insulation wire- Supplier : Totoku Co.- Model : Prototype- Conductor materials and diameter : Ni coated on Cu, 0.5 mm- Insulation material and coating thickness : Polyimide, 25 ^m- Coating method : Mild baking after dipping

b) Polyamideimide insulation wire- Supplier : Totoku Co.- Model : Prototype- Conductor materials and diameter : Ni coated on Cu, 0.5 mm- Insulation material and coating thickness : Polyimide, 25 im ~ 63 \im- Coating method : Mild baking after dipping

[ Thermocouples ]

(9) Polyimide insulation thermocoupleInsulators of these thermocouples are the same as Wire-(H/a-l) and Wire-(H/a-2), the

materials of the conductor are chromel and alumel instead of copper. The followings arespecifications of the thermocouples.

a) Wire-(H/a-l) type insulator thermocouple- Supplier : Hitachi Cable Co.- Model: Prototype- Conductor : Ni coated chromel (dia. : 0.593 mm) / alumel (dia. : 0.593 mm)- Jacket: Glass fiber fabrics- Insulation capability : 1013 Q - BDV : 10 kV- Adhesive capability : 5 H (pencil hardness)- Critical diameter of curvature : 1 d (d means outer diameter of the wire)

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b) Wire-(H/a-2) type insulator thermocouple- Supplier : Hitachi Cable Co.- Model: Prototype- Baking temp, and processing time : 300°C / 2hr- Conductor : Ni coated chromel (dia. : 0.593 mm) / alumel (dia. : 0.593 mm)- Jacket: Glass fiber fabrics- Insulation capability : 1012 Q - BDV : 9 kV- Adhesive capability : 5 H (pencil hardness)- Critical diameter of curvature : 1 d (d means outer diameter of the wire)

(10) Polyimide/Ceramics insulation thermocoupleInsulators of these thermocouples are the same as Wire-(H/b-l) and Wire-(H/b-2), the

materials of the conductor are chromel and alumel instead of copper. The followings arespecifications of the thermocouples.

a) Wire-(H/b-l) type insulator thermocouple- Supplier : Hitachi Cable Co.- Model: Prototype- Conductor : Ni coated chromel (dia. : 0.593 mm) / alumel (dia. : 0.593 mm)- Jacket: Glass fiber fabrics- Insulation capability : 9xlO12 Q - BDV : 3 kV- Adhesive capability : 5 H (pencil hardness)- Critical diameter of curvature : 1 - 3 d (d means outer diameter of the wire)

b) Wire-(H/b-2) type insulator thermocouple- Supplier : Hitachi Cable Co.- Model: Prototype- Baking temp, and processing time : 300°C / 2hr- Conductor : Ni coated chromel (dia. : 0.593 mm) / alumel (dia. : 0.593 mm)- Jacket: Glass fiber fabrics- Insulation capability : 8x1012 Q - BDV : 2.5 kV- Adhesive capability : 5 H (pencil hardness)- Critical diameter of curvature : 2 - 4 d (d means outer diameter of the wire)

[ Connectors ]

(11) Polymer insulation connectorFive types of electric connectors, which utlized five brand names of polymers to electric

insulator, were fabricated and tested at a high temperature in nitrogen gas conditions. Eachpolymer's name is UPILEX-S, AURAM, VESPEL BEK and PEEK and these connectors aremainly classified into two kinds of polymer, namely, thermoplasticity polyimide and poly-ether-ether-ketone. The followings are specifications of these connectors.

a) UPILEX-S connector- Supplier of polymer: Ube Industry Co.- Model : Prototype- Material of polymer : Thermoplasticity polyimide-Number of pin : 18 pins

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- Dimensions : 35 mm in dia., 80 mm in lengthb) AURAM connector

- Supplier of polymer: Mitsui Tohatsu Co.- Model : Prototype- Material of polymer : Thermoplasticity polyimide- Number of pin : 18 pins- Dimensions : 35 mm in dia., 80 mm in length

c) VESPEL connector- Supplier of polymer: Dupont Co.- Model : Prototype- Material of polymer : Thermoplasticity polyimide- Number of pin : 18 pins- Dimensions : 35 mm in dia., 80 mm in length

d) BEK connector- Supplier of polymer: Idemitsu Kohsan Co.- Model : Prototype- Material of polymer : Thermoplasticity polyimide- Number of pin : 18 pins- Dimensions : 35 mm in dia., 80 mm in length

e) PEEK connector- Supplier of polymer: Mitsui Tohatsu Co.- Model : Prototype- Material of polymer : Poly-ether-ether-ketone- Number of pin : 18 pins- Dimensions : 35 mm in dia., 80 mm in length

(12) Ball bearing used electric connectorThree types of electric connectors with a ball bearing, the 1st, 2nd and 3rd stages, were

developed and tested. The objectives of these connectors are to develop an electric connectorfor easy connection-disconnection compatible with remote handling and tolerable withintensive radiation environment. The first stage connector verified a feasibility of themechanism and durability in intense gamma irradiation. Based on this, the second and thirdstages connector have been improved to enhance the remote maintainability so as to easyconnection-disconnection with compactness. In addition, the associated tool for connection-disconnection has been developed for remote operation. The followings are specifications ofthese connectors.

a) First stage connector- Supplier : Hitachi Haramachi Electronics Co.- Model : Prototype- Number of pin : 4 - Insulation capability : 1 kQ I DC 500 V- BDV : DC 1 kV / lmin - Contact resistance : less than 1 mQ.- Insulator : Alumina - Housing material: SS304- Dimensions : 73 mm in dia., 43 mm in length

b) Second stage connector- Supplier : Hitachi Haramachi Electronics Co.

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- Model : Prototype- Number of pin : 10 - Insulation capability : 1,000 MQ / DC 500 V- BDV : DC 1 kV / lmin - Contact resistance : less than 10 mfi- Insulator : Alumina - Housing material: SS304- Dimensions : 63 mm in dia., 62 mm in length

c) Third stage connector- Supplier : Hitachi Haramachi Electronics Co.- Model : Prototype- Number of pin : 6, 22 - Insulation capability : 1,000 MQ / DC 500 V- BDV : DC 1 kV / lmin (6 pins), DC 500 V /1 min (22 pins)- Contact resistance : less than 10 mQ - Insulator : Alumina- Housing material: SS304- Dimensions : 63 mm in dia., 62 mm in length

6. 3. 2 Instrumentation devices

(1) Vacuum gaugeIn general, vacuum gauges are used properly according to the pressure range. Three types

of vacuum gauges, capacitance manometer, pirani gauge and ionization gauge, were chosen andtested. Measurable pressure range of the capacitance manometer, pirani gauge and ionizationgauge is roughly lxlO5 Pa ~ lxlO"1 Pa, lxlO3 Pa ~ lxlO"1 Pa and 10 Pa ~ lxlO'6 Pa,respectively. The followings are specifications of these gauges.

a) Capacitance manometer- Supplier : ULVAC Co.- Model: CCM-1000- Measurable pressure range : lxlO"1 Pa~ 1.3xlO5 Pa- Materials of diaphragm and housing : Ceramics, SS- Accuracy : ± 0.5 %- Available temperature range : 5 - 50°C (gauge)

b) Pirani gauge- Supplier : ULVAC Co.- Model: WPB10-070- Measurable pressure range : 0.4 Pa ~ 3,000 Pa- Materials of filament and housing : Platinum, SS- Accuracy : ± 0.3 % in full scale- Available temperature range : 10 - 40°C (controller)

c) Ionization gauge- Supplier : ULVAC Co.- Model :M-13- Measurable pressure range : 5x10"^ Pa ~ 10 Pa- Materials of filament and housing : Iridium, SS- Accuracy : ± 15 % in full scale- Available temperature range : 10 - 40°C (controller)

(2) Standard type ultra-sonic transducer

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Ultra-sonic transducers (UT) for non-destructive inspection of weld joints are generallycomposed of epoxy resin and electrical parts, and thus improvements including materialselection are necessary to increase the radiation hardness. As a screening test, four types ofultra-sonic transducers were fabricated and the performance under irradiation was measuredusing different couplants (water, glycerol) [ 12].

As for the inclined type UT, two kinds of wedges (polyether imide (PEI) and acrylic)were also fabricated in combination with two kinds of couplants. The followings arespecifications of the UTs.

a) Perpendicular injection type- Supplier : Toshiba Co.- Model : Prototype- Materials of transducer :• Oscillator : PbNbO3 • Filler & binder : Epoxy resin • Casing : SS304• Damper : Powdered W and epoxy resin • Protector plate : AI2O3

- Materials of contacted medium : Water, Glycerol

b) Inclined injection type- Supplier : Toshiba Co.- Model: Prototype- Materials of transducer :• Oscillator : PbNbO3 • Filler & binder : Epoxy resin • Casing : SS304• Damper . Powdered W and epoxy resin • Protector plate : AI2O3- Materials of contacted medium : Water, Glycerol- Materials of wedge : PEI, Acrylic

(3) Brazed type ultra-sonic transducer for high & low temperature useOn the standard type UTs, a piezoelectric element is usually bonded on a protection

plate by adhesive such as epoxy resin. But in this method, the piezoelectric element is liableto peel from the protection plate by thermal expansion under heating or cooling conditions.The piezoelectric element made of LiNbO3 in the brazed type UT is combined to theprotection plate by brazing method (Mg contained Al brazing) [13]. As a result, the brazedtype UT has drastically extended the allowable temperature in ranging of -196°C ~ 55O°C,therefore the brazed type UT is expected to show a high tolerance in intense gammairradiation condition. The followings are specification of the brazed type UT.

- Supplier : Ishikawajima Harima Heavy Industry Co.- Model : MNL (perpendicular injection type)- Basic structure : Brazed type probe- Piezoelectric element. Single crystal LiNbO3- Frequency : 3.5 MHz

6. 3. 3 Other common materials

(1) Carbon fiber-reinforced plastic (CFRP)Fiber-reinforced plastic (FRP) is well-known to has a light weight and thermal

conductivity lower than metal. In addition, carbon fiber-reinforced plastic (CFRP), which wasadopted inorganic fiber as the reinforcing component, gives strength and stiffness equal tometal [14]. In this investigation, three kinds of CFRP s were prepared using the matrix resin of

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polyimide, bismaleimide and epoxy and radiation hardness of these CFRP specimen have beentested. The followings are specifications of these CFRP specimen,a) Polyimide specimen

- Supplier : Mitsubishi Electric Co.- Model : Prototype- Materials of reinforced fiber : Carbon fiber- Materials of matrix resin : Polyimide- Dimensions of specimen :

No. 1No. 2No. 3No. 4

210 mm in length, 19 mm in width, 2 mm in thickness20 mm in length, 10 mm in width, 2 mm in thickness20 mm in length, 20 mm in width, 2 mm in thickness65 mm in length, 3.6 mm in width, 3 mm in thickness

b) Bismaleimide specimen- Supplier : Mitsubishi Electric Co.- Model : Prototype- Materials of reinforced fiber : Carbon fiber- Materials of matrix resin : Bismaleimide- Dimensions of specimen :

No. 1No. 2No. 3No. 4

210 mm in length, 19 mm in width, 2 mm in thickness20 mm in length, 10 mm in width, 2 mm in thickness20 mm in length, 20 mm in width, 2 mm in thickness65 mm in length, 3.6 mm in width, 3 mm in thickness

c) Epoxy specimen- Supplier : Mitsubishi Electric Co.- Model : Prototype- Materials of reinforced fiber : Carbon fiber- Materials of matrix resin : Epoxy- Dimensions of specimen :

No. 1No. 2No. 3No. 4

210 mm in length, 19 mm in width, 2 mm in thickness20 mm in length, 10 mm in width, 2 mm in thickness20 mm in length, 20 mm in width, 2 mm in thickness65 mm in length, 3.6 mm in width, 3 mm in thickness

(2) GasketTwo kinds of elastomer O-ring gaskets (ethylene-propylene (EPDM), urethane (AU))

were chosen as a candidate of vacuum sealing materials for large port. As for the irradiationtests, small size gaskets, inner diameter of 55 mm were selected and tested. The followings aremain specifications.

a) Ethylene-propylene (EPDM)- Supplier : Nihon VALQUA Industry Co.- Model : Commercial- Material: Ethylene-propylene- Hardness : 73 (JIS-A standard)- Tensile strength : 16.4 MPa- Elastically : 270 % max.- Available temperature : -50 ~ +150°C- Dimensions of specimen : 54.5 mm inner diameter, 4 mm in thickness

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b) Urethane (AU)- Supplier : Moriei Kakou Co.- Model : Commercial- Material: Urethane- Hardness : 72 (JIS-A standard)- Tensile strength : 42 MPa- Elastically : 840 % max.- Available temperature : -40 ~ + 120°C- Dimensions of specimen : 54.5 mm inner diameter, 4 mm in thickness

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7. TEST RESULTS

The total exposure doses of the components tested are summarized in the table of Appendix3. In this table, almost all of the components have been irradiated more than 10 MGy. Moredetail data including specifications of tested components, test results, irradiation facility andconditions are described in every data sheet, additional tables and figures in the Appendixes(including data sheets, tables and figures) 4, 5 and 6. In this chapter, the main results of thecomponents mentioned above the chapter 6 are presented.

7.1 Subtask-1 : Robotics

7.1.1 Drives

(1) AC servo motorThe second phase AC servo motor was irradiated up to 65 MGy and stopped around 61

MGy due to abrasion and breakage of the bearings. The total running time is 4,800 hr and it isfound that temperature near the bearings is increased more than 400°C. In this servo motor,the retainers in the bearings are made of SL alloy(self lubricating alloy) and thus life time ofthe bearing will depend on radiation hardness of the SL alloy. As a results, the dose limit ofthis SL alloy bearing is estimated to be 50 MGy.

(2) Induction motorA 400-W induction motor with polyimide insulation was fabricated for high temperature

use and has been irradiated at 200°C up to 3 MGy without any degradation. The irradiationtest are being continued.

(3) Grease lubricant

(4) Ball bearingSix types of ball bearings with different rad-hard lubrication (polymer, metal and

ceramics) were irradiated in vacuum and as a result, the self lubricating alloy of SS310 showsthe highest durability up to 16 MGy. The irradiation tests of these ball bearings are beingplanned , including irradiation under air conditions.

(5) Reduction gear boxHarmonic Drives (a kind of reduction gear box) using standard type (SK-2) and rad-hard

type (GK-1) greases were irradiated in air up to 40 MGy. The standard type grease showslow viscosity and leaks through seals at 6 MGy. On the other hand, the rad-hard greaseshows hardening at 30 MGy. As a whole, radiation dose limit of the Harmonic Drives withstandard type and rad-hard type greases are estimated to be 30 MGy and 25 MGy,respectively.

7.1. 2 Sensors

(1) Position sensorSix kinds of position sensors have been irradiated and their dose limits are summarized

below. Since these sensors expect an optical-fiber type encoder are standard onescommercially available, their dose limits are relatively low as summarized below. On the other

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hand, an optical-fiber type encoder, which is newly developed for radiation use, shows a gooddurability and its dose limit is over 10 MGy.

Potentiometer(Wirewound type) : 0.14 MGy, Potentiometer(Magnet resistive type) :2.56 MGy, Differential transformer : 0.2 MGy, Synchronous resolver : 1.78 MGy, Rotaryencoder : probably impossible to use at dose rate of lxl0^ R/h.

(2) Force sensorsFoil type and capsule type strain gauges which have high temperature resistance, have

shown a good radiation resistance compared with the position sensors. But at 24.5 MGy,signal wires of the both gauges were damaged at the connection region to the gauges: this isprobably due to residual strain. Although there is no damage on the gauges, the dose limit offoil type and capsule type gauges is estimated to be over 20 MG.

(3) Distance sensorA distance sensor based on laser transmitted through optical fiber has been newly

developed and the performance tests before irradiation show a good accuracy within 1 mm formeasurement from 0.8 to 1.2 m distance. The irradiation tests scheduled from the middle of1998.

(4) Proximity sensorStandard magnetic type proximity sensors have been irradiated up to 26 MGy and no

degradation has been found.

(5) AccelerometerStandard type servo-rebalance accelerometers (±2 G) were irradiated in nitrogen gas and

the dose limit measured is about 1.4 MGy due to failure of electric circuits inside theaccelerometer, which is not radiation hardness.

7. 2 Subtask-2 : Viewing system

7. 2.1 CCD camera system

(1) Standard type CCD cameraStandard type CCD cameras were irradiated at a different dose rate of 104, 103 and 102

R/h, and dose limit of viewing capability is in the range of 1 ~ 1.5 kGy.

(2) Radiation hard type CCD cameraModified CCD cameras by adopting rad-hard lens and electric circuits to correct

degradation due to radiation were fabricated and irradiated in air at a dose rate of 104 and 103

R/h. The measured dose limit is about 3 kGy which is roughly three times of the standardCCD camera. The electrical circuits to correct degradation were adopted to standard CCU(camera control unit).

7. 2. 2 Optical parts

(1) PeriscopeCompared with the standard type periscope (periscope-1), the periscope-3 which is a

radiation hard type, have shown an excellent durability under irradiation. As a results, the

- 25 -

JAERI-Tech 99-003

observation dose limits is estimated to be over 102 MGy at a illuminance of 7,500 lx.. Thisdose limits is extremely high compared with the standard type periscope-1 which dose limitsare 1 kGy. After the irradiation tests, the periscope-3 was inspected and discoloration of theperiscope body and surface erosion of the reflecting mirrors were observed: these are the mainreasons to cause the degradation of viewing capability.

(2) Reflecting mirrorFrom the irradiation tests of three kinds of reflecting mirrors (chromium nitride(CrN)

coated mirror, platinum (Pt) coated mirror and aluminum (Al) coated mirror), it is found thatthe Pt coated mirror's reflectance is drastically decreased over 50 MGy and the surface waseroded. On the contrary, reflectance of the CrN and Al coated mirrors is not changed up to120 MGy although the surface of the aluminum coated mirror was eroded from lower doses.The doses limit of these mirrors is over 120 MGy (CrN), 120 MGy (Al) and 50 MGy (Pt),respectively.

(3) Glass materialOn the transmittance change of three kinds of glass samples as a function of doses, the

transmittance of both alkaline barium glass (NB) and lead glass (LX) is decreased withincreasing of doses in the range of visual wave length (400-700 nm). In particular, thetransmittance losses are remarkable between 400 nm and 600 nm. But the degrees of thesetransmittance decreasing are not a serious problem on the optical design of radiation hardperiscope. In case of the synthetic quartz, there is no change of the transmittance in the rangefrom 400 nm to 700 nm. The dose limit of these glasses is estimated more than 100 MGy.

(4) Adhesive for lensTwo kinds of adhesives, denaturation polyester resin and thermosetting epoxy resin,

were irradiated up to 55 MGy. The results show, in case of the denaturation polyester resin,small clouds like island and concentric clouds like a Newton's ring were occurred at 3.4 MGyand 7.8 MGy, respectively. And the adhesive capability on both resins was lost at doses of55 MGy.

(5) Anti-reflecting coating materialThis coating material is composed of three layers, SiO2, TiO2+ZrO2 and A12O3, and

coated on three kinds of glasses and irradiated in air up to 11 MGy. As the results, surfaceconditions and reflectance were not change compared with the before irradiation. As for thetransmittance change, it depends on coloring of the glass materials.

(6) Halogen lampHalogen lamps were irradiated up to 100 MGy (light off mode under irradiation) without

degradation. The lifetime of the halogen lamp is not related to irradiation but depends onoperational duration of continuous lighting. The measured lifetime for continuous lighting isabout 500 hr, and this time is approximately equivalent to the rated time.

7. 2. 3 Image fiber

(1) OH doped image fiberHydroxyl group (OH) doped synthetic quartz image fiber is a well-known radiation hard

type image fiber. As a result of the irradiation test of OH doped image fiber, the dose limits ofobservation and resolution capability are 12 MGy and 3.1 MGy at illuminance of 8,500 lx,respectively. The differences of observation capability between this image fiber and the

- 26 -

JAERI-Tech 99-003

periscope-2 are considered due to the differences of the materials, such as, natural quartz forobjective lens and epoxy for fiber protector. Therefore, the dose limit can be increased toreplace natural quartz with synthetic quartz.

(2) Fluorine doped image fiberFluorine (F) doped synthetic quartz image fiber is a well-known radiation hard type

image fiber too [6]. As a result of the irradiation test, the dose limit is basically the same asthe OH doped image fiber but precoating material, which protects the fiber, was broken bythe irradiation.

(3) Recovery treatment to OH doped image fiberAfter the irradiation test, the OH doped image fiber was heat-treated in hydrogen gas at

250°C so as to recover the radiation damage. As a result, the effect of the recovering treatmenton the viewing capability is clearly confirmed.

(4) In-situ hydrogen gas treatment to image fiber under gamma irradiationOptical fiber (image fiber) with in-situ hydrogen gas treatment flow has been irradiated

up to 100 MGy and shows a sufficient viewing capability. The irradiation tests are beingcontinued, including assessment on dependency of hydrogen gas pressure on viewingperformance.

7. 3 Subtask-3 : Common components

7. 3. 1 Cables/Wires/Connectors

[ Cables ]

(1) Power & Signal cables for rad-hard AC servo motorThese prototype ceramics insulation cables were tested with a campaign of the rad-hard

AC servo motor irradiation tests and irradiated up to 75 MGy in air. As the results, anyelectric troubles have not been found but handling is not easy due to no flexibility.

(2) Thermocouple cable for rad-hard AC servo motorThis thermocouple cable was tested with a campaign of the rad-hard AC servo motor

irradiation tests too. As a results, any troubles were not occurred up to irradiation of 75MGy.

(3) Silicon nitride (SiN) fabric used cableSiN fabric insulation cable combined polyimide and mica tape were irradiated in nitrogen

gas at high temperature of 300°C. The cable shows no degradation up to 11.2 MGy.

(4) Polymer insulated coaxial cablePolymer insulated coaxial cable wires were irradiated in nitrogen gas at high temperature

of 250°C and show dose limit over 100 MGy.

[ Wires ]

(5) Ceramics insulated wire and imitation coils made used of the wire

- 27 -

JAERI-Tech 99-003

Electrical and mechanical characteristics of wires (S/a, S/b) and the coils are measured as afunction of doses. The insulation resistance of all wires and coils is over 10 MQ up to 25MGy and the dependency on the radiation dose is not significant. Although the breakdownvoltage of the wire-(S/b) and the coil-(S/a) depends on radiation dose, it is in average notsignificant up to 25 MGy. The mechanical flexibility is defined as a ratio of minimum bendingradius to the wire diameter. The bending radius of the wire-(S/b) becomes a minimum at theradiation dose of 10 MGy and then it is increased(hardening) due to radiation. On the otherhand, the wire-(S/a) show a gradual inclination of hardening due to irradiation. Test results ofthe mechanical flexibility are rather scatter among samples and are not uniform tendency: thismay be due to unhomogeneity of the ceramic insulators. Abrasion capability of the wire-(S/a)becomes gradually softening. The dose acceptance characteristics of these specimen areestimated to be 50 MGy.

(6) Polyimide insulation wiresThe wires, H/a-1 and H/a-2, have been irradiated up to 50 MGy and the electrical and

mechanical characteristics are measured as a function of the dose. The insulation resistance ofboth wires is rapidly decreased from 107 M(i to 106 MQ in the radiation range up to 10MGy and thereafter the resistance is gradually increased with a tendency to saturation. Thebreakdown voltage of the wire-(H/a) is increased due to radiation. As a whole, the both wireswith polyimide insulator can be tolerable for the radiation dose up to 50 MGy. As for themechanical characteristics of the wire-(H/a-l,H/a-2), elongation and flexibility (defined as aratio of a minimum bending radius to the wire diameter) are not influenced up to 50 MGy.

(7) Polyimide/Ceramics insulation wiresThe wires, H/b-1 and H/b-2, have been also irradiated up to 50 MGy. The dependency of

insulation resistance of the wires on irradiation dose is almost the same as that of the wires-(H/a-1) and (H/a-2). The breakdown voltage of the wires-(H/b-l) and (H/b-2) are notinfluenced up to 50 MGy. On the contrary, mechanical characteristics such as elongation andflexibility are decreased with increasing of the exposure dose: this is due to hardening of thesemi-sintering ceramic insulator. As a result, the dose limit of the wires-(H/b-l) and (H/b-2),which are insulated with a combination of ceramic and polyimide is more than 50 MGy.

(8) Varnish insulated wiresVarnish type insulation wires were irradiated in nitrogen gas at high temperature of 250°C

and show dose limit over 100 MGy.

[ Thermocouples ]

(9) Polyimide insulation thermocoupleStructure of these thermocouples, type H/a-1 and type H/a-2, are the same mentioned

above (6). Insulation capability after doses of 50 MGy on these thermocouples were 2.3xlO7

MQ and 1.6xlO7 MD, respectively. These values are not change before irradiation.

(10) Polyimide/Ceramics insulation thermocoupleStructure of these thermocouples, type H/b-1 and type H/b-2, are the same mentioned

above (7). Insulation capability after doses of 50 MGy on these thermocouples were the samevalue of l.OxlO7 MQ. But these values are low compared with type H/a thermocouple and itis estimated due to un-homogeneity of ceramics.

- 28 -

JAERI-Tech 99-003

[ Connectors ]

(11) Polymer insulation connectorFive kinds of thermoplasticity materials (UPILEX-S, AURAM, VESPEL, PEEK and

BEK) as an insulator for electric connector were irradiated in nitrogen gas at high temperaturesfrom 250 to 300°C up to 100 MGy without degradation.

(12) Ball bearing used electric connectorOn the test results of the 1st and 2nd electrical connectors, the breakdown voltage of both

connectors are over 1 kV up to the doses of 50 MGy. In the 1st phase connector, the contactresistance between pins and sleeves is almost the same level as the initial value before theirradiation. On the contrary, the contact resistance of the 2nd phase connector is rapidlyincreased after the irradiation and is reaching to saturation at 10 MGy: this will be due tosurface erosion of pin and sleeve caused by ozone and humidity in the cell. As a whole, theboth connectors can be tolerable up to 50 MGy.

7. 3. 2 Instrumentation devices

(1) Vacuum gaugeVacuum gauges such as Pirani and ionization gauges show no damage up to 10 MGy by

irradiation in air . The irradiation tests are being continued.

(2) Standard type ultra-sonic transducerTwo types of ultra-sonic transducers, which are the perpendicular injection type and the

inclined injection type, have been irradiated up to 10 MGy and their echo signals aremeasured as a function of dose. As a result, it is concluded that the dose limit of these typesof UT sensors are less than 1 MGy and more extensive development including materialselection is needed.

(3) Brazed type ultra-sonic transducer for high & low temperature useBrazed type UTs (ultra-sonic transducer) combined of the delay materials such as acrylic

resin, thermoplasticity polyimide and Ti were irradiated in air up to 2.3 MGy. As the results,the UTs showed no degradation but the acrylic resin delay material was damaged at earlystage of the irradiation.

7. 3. 3 Other common materials

(1) Carbon fiber-reinforced plastic (CFRP)Three kinds of matrix materials, polyimide, bismaleimide and epoxy, were irradiated up to

50 MGy. After irradiation, tensile strength, ILSS, thermal expansion and surface reflectancewere measured. As the results, concerning the tensile strength and surface reflectance tests,there are no notable difference among these matrix materials. As for the thermal expansion andILSS, the polyimide matrix material is relatively constant but in case of the bismaleimide andepoxy matrix materials the values are decreased with accumulation dose.

(2) GasketTwo kinds of standard elastomer (ethylene-propylene, urethane) O-rings were irradiated

in air up to 15.7 MGy at a dose rate of 1.6x10 , 1.9x10^ and 2.4x10^ R/h. The results showcoloring at 1 MGy and adhesives from 10 MGy on both O-rings. As for the leakage, it was

- 29 -

JAERI-Tech 99-003

detected after cyclic compression test of 100 time from the urethane O-ring which wasirradiated up to 1.19 MGy.

- 30 -

JAERI-Tech 99-003

8. CONCLUSIONS AND RECOMMENDATIONS

This report summarizes the irradiation test results of various standard components forthe ITER in-vessel remote maintenance system. Several components developed for radiationuse have shown excellent durability at a dose rate of 10^ R/h and their dose limits are over 10MGy. However, a number of components are insufficient capability in terms of radiationhardness and thus extensive development is still required to realize reliable maintenanceoperation for a sufficient length of time in the ITER in-vessel environments. The mainconclusions of the major components tested in this task are given below.

(1) AC servo motor : The 2nd and 3rd phase AC servo motors have been successfullydeveloped for radiation use and the dose limit of ceramic insulated stator and resolver coils (incase of the 3rd phase motor, the resolver coil is insulated by polyimide) is more than 10MGy. The main problem is related to lubricants of the ball bearing and the development ofradiation hard type synthetic oil grease is a key to solve this problem: the radiation hardnessof ball bearings and lubricants are very important not only for motors but also for everymechanical drives and joints of remote maintenance system. Another problem is to increaseaccuracy of the resolver for fine positioning of the system.

(2) Position sensors : Several commercial base position sensors are not tolerable for radiationenvironments and extensive efforts have to be made to develop radiation hard positionsensors. A optical-fiber type encoder has shown excellent durability under the radiationconditions and further improvement and investigation are to be made for application of opticalfiber to position sensors.

(3) Viewing system . The radiation hard type periscope has been successfully developed andcan be tolerable for more than 102 MGy. In addition, the periscope offers better quality ofviewing than that of the radiation hard image fiber and thus the periscope is a promisingdevice for in-vessel viewing system. Based on this result, 15m-long rad-hard periscope,simulated the real ITER configuration, was fabricated and demonstrated the total systemperformance. As for the image fiber, the radiation hardness can be improved by adoptingsynthetic quartz. In addition, it has a possibility to recover the radiation damage by heattreatment (250°C) in hydrogen gas and in-situ hydrogen gas treatment at room temperature.As a whole, a combination of periscope and image fiber can offer wide viewing in open spaceand detail viewing in narrow space.

(4) Common components : Polyimide insulated wires and insulator for electric connector haveshown high radiation tolerance for more than 100 MGy at a temperature of 250°C and thedata base on their mechanical characteristics such as minimum bending radius are accumulated.A combination of ceramic and polyimide insulation is also promising for application to theremote maintenance system. Based on these results, components or devices made of thesewires are to be fabricated and tested so as to demonstrate the integrated performance in thenext development stage.

As a whole, further continuous efforts are required both to improve and increase radiationhardness of the rad-hard components showing lower durability than the ITER targets, and toconduct the integrated system tests of rad-hard components into the remote handling system.The system tests include to verify performance and durability of rad-hard componentsassembled to sub-scaled remote handling equipment such as manipulator operating under

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JAERI-Tech 99-003

irradiation and loads. In addition, scalability of rad-hard components developed is to beverified using the existing prototype remote handling equipment.

ACKNOWLEDGEMENTS

The authors would like to express their sincere appreciation to Drs. S. Matsuda, T.Seguchi and K. Yotsumoto for their continuous guidance and encouragement. They also wouldlike to acknowledge all of members who supported this work.

REFERENCES

[I] E. Tada., et. al., "Development of Remote Maintenance System for ITER Blankets",IAEA-CV-64/01-1, 16th IAEA Fusion Energy Conference, October (1996).

[2] R. Aymar., et. al., "ITER Project: A Physics and Technology Experiment", IAEA-CN-64/FP-15, 16 th IAEA Fusion Energy Conference-ITER Preprints, October (1996).

[3] K. Obara et. al., "Irradiation Test of Critical Components for Reemote Handling inGamma Radiation Environment", JAERI-Tech 94-003, August (1994).

[4] K. Obara et. al., "Irradiation Test of Critical Components for Reemote Handling Systemin Gamma Radiation Environment", JAERI-Tech 96-011, March (1996).

[5] K. Obara et. al., "Development of Radiation Hard CCD camera and CameraControl Unit", Proc. of RADECS 97 Conference (Canne, 1997), to be published 1998.

[6] T. Yagi et. al., "Design and Construction of Gamma-Ray Irradiation Facility forRemote-Handling Parts and Components of Fusion Reactor", JAERI-Tech 95-015,March (1995), (in Japanese).

[7] T. Kojima et. al., Appl. Radiation and Isotopes, 37, 517 (1986).[8] Catalog, AMINOGRAY, CAT. NO. EC-930, Hitachi Cable, Ltd.[9] K. Obara et al.," Development of optical components for in-vessel viewing systems use

for fusion experimental reactor", SPIE Vol. 2425, 115-122 (1994).[10] K. Obara et. al., "Development of 15m-long Radiation Hard Periscope for ITER in-

Vessel Viewing", Proc. of 4th ISFNT Conference (1997, Tokyo), to be published 1998.II1] H. Hayami et al., "Radiation Resistivity of Pure-Silica-Core Image Guides", Journal of

Nucl. Sci. and Technol., 30 (2), pp. 95-106, February (1993).[12] K. Koizumi et. al., "Development of Radiation-Hard Ultrasonic Inspection Probes for

ITER Vacuum Vessel", JAERI-Tech 96-041, October (1996).[13] T. Arakawa et. al., '^Applications of Brazed-Type Ultrasonic Probes for High and

Low Temperature Uses", Proc. of The 5th Int. Sympo. on NondestructiveCharacterization of Materials, .(1991, Karuizawa), pp. 263-272, (1992).

[14] K. Sonoda et. al., "Degradation Behaviour of Fiber Reinforced Plastic under ElectronBeam Irradiation", Japan Journal of Appl. Phys., Vol. 28, No. 10, pp. 1950-1956,October (1989).

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JAERI-Tech 99-003

Appendix 1Specifications of Gamma Irradiation Cell

- 33 -

JAERI-Tech 99-003

Specifications of gamma ray irradiation facilities for irradiation test

1. No. 2 cell in the No. 1-Cobalt Building

• Location- Takasaki Radiation Chemistry Establishment / JAERI

Radiation source- Containing system- Shape of the source- Activity- Dose rate

• Dimensions

- Irradiation table

- Inside the cell

• Irradiation conditions- Temperature- Humidity- Atmosphere

Swimming poolSlab type (2 m in length, 45 cm in height)7.80 PBq (211 kCi) / Co-60381~5.8C/kg-h(1.5xl06~ 2.2xlO4R/h)

: North side, 2.6 m in width x 3.5 m in lengthSouth side, 2.6 m in width x 1.5 m in length

: 6 m in length x 5 m in width x 4.4 m in height

AmbientAmbientAir

Interior parts of the No. 2 cell.

- 34 -

JAERI-Tech 99-003

2. No. 3 cell in the No. 1-Cobalt Building

• Location- Takasaki Radiation Chemistry Establishment / JAERI

Radiation source- Containing system- Shape of the source- Activity- Dose rate

Dimensions- Irradiation table- Inside the cell

• Irradiation conditions- Temperature- Humidity- Atmosphere

: Swimming pool: Cylindrical type (50 cm in dia., 45 cm in height): 6.99 PBq (189 kCi)/Co-60:448~28.1C/kg-h(1.7xl06~ l. lxlO5R/h)

: 2.2 m in width x 1.5 m in length: 6 m in length x 5 m in width x 4.4 m in height

Maximum baking temperature, 350 °CAmbientAir, inert gas (1 atm), vacuum (0.1 Pa)

Interior parts of the No. 3 cell.

- 35 -

Normal concrete p=2.3

Heavy concrete p=3.7

4 SO 00

Storehouse for radiation source i

oo

IooCO

0 1 2 3 4 5 .

Plane view of the No. 1-Cobalt Building.

I

V/ // /f\ Normal concrete p=2.3

k \ M Heavy concrete p=3.7

Storehouse for radiation source

I

0)o

IOoto

Cross section of the No. 1-Cobalt Building.

CO00

No. 2 cell in the No. 1-Cobalt Building (1/4).Outside the No. 2 cell (upper, bottom), data acquisitionsystems are arranged around the cell.

No. 2 cell in the No. 1-Cobalt Building (2/4).Inside the No. 2 cell (upper, bottom), vacuum chamber,electric connectors, grease lubricants and sensors are seton the irradiation table.

mso

OO

mso

CD

o

OoCO

No. 2 cell in the No. 1-Cobalt Building (3/4).Inside the No. 2 cell, upper, north side; bottom, south side.Nitrogen gas environment chamber is set on the north sideirradiation table.

No. 2 cell in the No. 1-Cobalt Building (4/4).Inside the No. 2 cell, upper, view from east side; bottom,view from west side. Radiation source of Co-60 is set atthe center.

JAERI-Tech 99-003

No. 3 cell in the No. 1-Cobalt Building. Inside the No. 3 cell, cylindrical source lifts upfrom within the swimming pool and the irradiation chamber is encircled by the source.

- 40 -

JAERI-Tech 99-003

Appendix 2Dosimetry (Characteristics of Alanine Dosimeter)

- 41 -

JAERI-Tech 99-003

Dosimeters

1. Comparison of dosimeters in high-dose range

Dosimeter Useful dose Accuracy Stability Handling Dependencetype (7 ray) range (Gy) (%) of response in environment

Good Good SmallAlaninedosimeter

Ferroussulphate

Ceric-ceroussulphate

PMMAdosimeter

1-105

40 - 2xl03

103 -105

5xl03 - 5xlO4

±2

±2

±2

±5

TLD 10* ±10

Mid.

Good

Bad

Good

Bad

Bad

Good

Good

Small

Small

Large

Small

CTAdosimeter

104 - 3X105 + 5 Mid./Bad Good Large

PMMA: Polymethyl meta-acrylate, TLD: Thermoluminescence dosimeter, CTA: Cellulose tri-acetate1) T. Kojima et aL, AppL Radiat. Isot, 37,517(1986)

-Among the above dosimeter, alanine dosimeter has high degree of accuracy,wide measurable dose range, long term stability after irradiation andtissue-equivalence.-Aminogray™ is alanine dosimeter which composed of 70wt.% of alanineand 30wt.% of polystyrene.

-ESR spectrometer as a readout system of alanine dosimeter is veryexpensive, but JAERI has been developed a low-priced and handy ESRsystem recently.

2. References2.1 General properties of AMINOGRAY

-Characteristics-Usage-Specification

2.2 Outline of the handy type ESR spectrometer-Picture of the spectrometer(ME-200AH)-Configuration of measurement system

- 42 -

JAERI-Tech 99-003

High Degree of AccuracyWide measurable dose range (MHO5 Gy)Long-term stability

Recently ionizing radiation has begun to be widelyused in the fields of industry, medicine and biology.Importance of measurement of radiation dose hasbeen increasingly recognized in quality control ofradiation process, safety control of irradiation facili-ties and atomic plants, comparative studies of radia-tion effects, etc.AMINOGRAY mainly composed of alanine, a kind ofamino acid, has been developed as a practical dosime-ter satisfying various dosimetric demands.AMINOGRAY is developed on the basis of the princi-ple that concentration of alanine radicals induced byradiation is able to be measured by using electronspin resonance (ESR) spectrometry.AMINOGRAY has big advantages; high degree of accu-racy, wide measurable dose range, long-term stabilityafter irradiation and tissue-equivalence, etc.AMINOGRAY can be applied for various fields suchas radiation processing, radiotherapy, biology, evalu-ation of radiation resistance of material and electricparts, etc.

Principle

Ionizing radiation induces stable free radicals in alanine crystalin AMINOGRAY by the chemical reaction as follows:

HI

H,C-C-COOHINH,

IonizingRadiation

HI

H,C-C-COOH

Absorbed dose in AMINOGRAY is evaluated from the con-centration of the radiation induced radicals which can bemeasured with ESR spectrometer.

- 43 -

JAERI-Tech 99-003

Note: 1. When AMINOGRAY is used in humid environment, it is prefera-ble to treat it kept in the cylindrical holder.

2. When AMINOGRAY is taken from the holder, it's desirable topick the ends of dosimeter to avoid scratching or pollution.

3. If customer wants to apply our readout-service-system (ESRmeasurement), please send us irradiated AMINOGRAY as kept inthe holder.

CharacteristicsWide Measurable Dose Range

Dose response of AMINOGRAY has a good linearity for widedose range as shown in Fig. 1. An absorbed dose from 10 to10s Gy can be covered with AMINOGRAY. (1 Gy = 100 rad)

dic

al

S~5

I1

Con

.13K

Fig

High Degree of

1O1

10

1

10"'

10"'

yy

y1 y

y

Dose (Gy)

1 Typical Dose Calibration Curve

Accuracy

AMINOGRAY has high degree of accuracy of ±1% tolerance inthe dose region above 100 Gy and ±2% in the dose range from10 to 100 Gy. AMINOGRAY is useful not only for routineuses but also as a quasi-standard in radiation dosimetry.

"Amrnograv"

Thermo-LuminescenceDosimeter (TLD>

Fricke Dosimeter

PMMA Dosimeter

±2% ± 1 %

±10%

Numerical values show

the precision.

1 10 101 10' 10" 10' 10*Dos« (Gy|

Fig. 2 Useful Dose Rang* and Precision of Several Important Dosimeters

Excellent Stability of Dose Response

Dose response of AMINOGRAY is remarkably stable afterirradiation, and changes little at room temperature for 1000hours after irradiation as shown in Fig. 3. So, AMINOGRAYis useful for measurement of accumulated dose in the materialor electric parts exposed to radiation for long time, and alsoavailable for concentrative dose reading by mailing irradiatedAMINOGRAY to us.

1

s5 0.5

Io

IDose 10" GyRelative Humidity 60%

250 750500

Storage Time (hi

Fig. 3 Stability of Response After Irradiation

Slightly Influenced from Environmental Condition

AMINOGRAY is slightly dependent on environmental condi-tion such as temperature, humidity, sun light, pressure, oxygenetc. Careful handling is needless.

UsageSet AMINOGRAY being kept in a cylindrical holder at thepoint of measurement and expose it to y- or X-ray. TakeAMINOGRAY out of the holder after irradiation and measureits spectral height with ESR spectrometer. Read out an corre-sponding does from the given calibration curve or evaluatedose by comparing its response with that of a calibrated refer-ence sample.In the case of using naked dosimeter without the holder, treatit carefully to avoid suffering high humidity at high temper-ature.As the ESR spectrometer is not so widely used, we are offeringthe dose measurement service (including handling charge).Please let us know if you want us to do the dose measurementservice.

Specification of AMINOGRAY is shown in Table 1.

Table 1. Specification

Gassification

AMINOGRAY

Holder

Item

Composition

MeasurementsDimension

Material

MeasurementsDimension

Unit

3

'/"

MM

-

MM

Specification

PolystyrenePfW(wt%))

Alanine(*3t>(wt%) )

3X30

Polystyrene

12X43

Remark

Thickness4 MM

- 44 -

JAERI-Tech 99-003

Appendix 3Summary of Gamma Irradiation Tests Results of Critical Components

for Remote Handling System

- 45 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test ResultsSubtask-1 (Robotics)

SheetNo.

Sl-DV01

Sl-DV02

Sl-DV03

Sl-DV04

Sl-DV05

Sl-DV06

Sl-DV07

Sl-DV08

Sl-DV09

Sl-DV10

Sl-DV11

Sl-DV12

Component

AC servo motor(1st stage)

AC servo motor(2nd stage)

AC servo motor(3rd stage)

Induction motor

Four kinds ofgrease lubricants

Ball bearing(race : thermopl as-ticity polyimide)Ball bearing(Race:thermosett-ing polyimide)Ball bearing(race:PEEK)

Ball bearing(separator:SL alloy)Ball bearing(separator:SS310 alloy)Ball bearing(ball: ceramics)

Reduction gearbox (HarmonicDrive)

Cla-ssifi-

cation3

3

3

3

2

2

2

2

2

2

2

1

•Dose rate (R/h)•Atmosphere•Temperature• 1.5x106•Air• Ambi. temp• 1.34 xlO6

• Vacuum• Ambi. temp• 1.01 xlO6

• Vacuum• Ambi. temp•5xlO 5

• N2 gas• 200 °C• 1.37 xlO6

•Air• Ambi. temp

•5.95x105• Air & Vacuum• Ambi. temp•5.95xl05

• Air & Vacuum• Ambi. temp• 5.95 x 105

• Air & Vacuum• Ambi. temp•5.95xl05

• Air & Vacuum• Ambi. temp•5.95xlO5

• Air & Vacuum• Ambi. temp•5.95xl05

• Air & Vacuum• Ambi. temp• 1.1 xlO6

•Air• Ambi. temp

Accum.dose

(MGy)67

65

11

11.5

49.7

0.52

0.38

3.09

3.03

16.4

11.6

30 (SK-2)40 (GK-1)

Accep.doses

(MGy)4 0 - 5 0

55

10

10

TBD

TBD

TBD

TBD

TBD

TBD

TBD

30 (SK-2)25 (GK-1)

Mainresults or issues

Stopped by hardeningof grease lubricant inball bearings.Stopped by breakageof ball bearings.

(ditto)

Stopped by hardeningof grease lubricant.

Hardening,withstanding load andweight loss weretestedStopped by abrasionof retainer.

(ditto)* Race material

(ditto)

Total performance isbetter than othertypes.Running time in vac.condition is longerthan air condition.This type is nothandy.

•SK-1 &GK-1 meantypes of grease.• SK-2 grease gotsofter and GK-1hardened.

(contd.)

46 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-1 (Robotics)

SheetNo.

Sl-SS01

Sl-SS02

Sl-SS03

Sl-SS04

Sl-SS05

Sl-SS06

Sl-SS07

Sl-SS08

Sl-SS09

Sl-SS10

Sl-SS11

Sl-SS12

Sl-SS13

Component

Potentiometer(wirewound type)

Potentiometer(wirewound type)

Potentiometer(magnet resistivetype)Differentialtransformer

Differentialtransformer

Synchronousresolver

Rotary encoder

Optical fiber usedrotary encoder(prototype)Optical fiber usedrotary encoder

Strain gauge(foil type)

Strain gauge(capsule type)

Distance sensor(laser type)

Distance sensor(optical fiber usedlaser sensor)

Cla-ssifi-cation1

1

1

1

1

1

1

3

1

1

1

1

3

•Dose rate (R/h)•Atmosphere•Temperature•9.36x105•Air• Ambi. temp• 1.01x106• N2 gas• Ambi. temp•9.36xlO5

•Air• Ambi. temp•9.76xlO5

•Air• Ambient temp.•9.71xlO5

• N2 gas• Ambi. temp• 1.11x106•Air• Ambi. temp• l . l l x l O 6

•Air• Ambi. temp• 1.04x106•Air• Ambi. temp• 1.01x106• N2 gas• Ambi. temp• 1.5 xlO6

•Air• Ambi. temp• 1.5 xlO6

•Air• Ambi. temp•98.5• 1.08 xlO4

• 1.57 xlO6

•Air• Ambi. tempplanning

Accum.dose

(MGy)14.3

8.22

13.5

14.9

4.5

17.7

0.01

16.4

1.4

127

127

0.077

Accep.doses(MGy)

0.14

3

2.5

0.2

4.3

1.8

impossi-ble

over 16.4

1.1

80

over 80

TBD

Mainresults or issues

Stopped by troubleof rotationalmechanism.Output signals wereshifted up or down.

Stopped by troubleof rotationalmechanism.Stopped by troubleof linear motionmechanism.Signals could notdetect at 4.5 MGy.

Stopped by troubleof rotationalmechanism.Signal could notdetect just afterirradiation.There is not change.

Electric devices in thesensor were damaged.

Insulation resistanceof lead wiredecreased.Take care to installthe gauge.

Rad.hardness isdifferent by dose rate.

Detectable range isfrom 800 to 1,200nm.

(contd.)

- 47 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-1 (Robotics)

SheetNo.

Sl-SS14

Sl-SS15

Component

Proximity sensor(magnetic type)

Accelerometer(servo rebalancetype)

Cla-ssifi-cation1

1

•Dose rate (R/h)•Atmosphere•Temperature• 1.8 xlO5

•Air• Ambi. temp• 1.57 xlO6

• N2 gas• Ambi. temp

Accum.dose

(MGy)26

2.16

Accep.doses(MGy)

over 26

0.7

Mainresults or issues

There is not change.

Amplifier wasdamaged.

- Classification : 1, Commercial product; 2, Modified product; 3, Newly-developed product- Accepetance doses : tentative value

- 48 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test ResultsSubtask-2 (Viewing systems)

SheetNo.

S2-CS01

S2-CS02

S2-OP01

S2-OP02

S2-OP03

S2-OP04

S2-OP05

S2-OP06

S2-OP07

S2-OP08

S2-OP09

S2-OP10

S2-OP11

S2-OP12

Component

CCD camera

CCD camera withimproved CCU

Rad. hardnessperiscope(1st stage)Rad. hardnessperiscope(2nd stage)Reflecting mirror(Cr coated onSS304)Reflecting mirror(Al coated onSS304)Reflecting mirror(Pt coated onSS304)Glass (CeO2contained alkalinebarium glass)Glass (CeO2contained leadglass)Glass(OH dopedsynthetic quartz)Adhesive(denaturationpolyester resin)Adhesive(thermosettingepoxy resin)Anti-reflectingcoating film

Halogen lamp

Cla-ssifi-cation1

2

3

3

3

3

3

1

1

1

1

1

3

1

•Dose rate (R/h)•Atmosphere•Temperature•1x102,3,4•Air• Ambient temp.• 1x103,4•Air• Ambient temp.• 1 x 106

•Air• Ambient temp.• 1 x 106

•Air• Ambient temp.• 1.5 xlO6

•Air• Ambient temp.• 1.5 xlO6

•Air• Ambient temp.• 1.5 xlO6

•Air• Ambient temp.• l x l O 6

•Air• Ambient temp.• 1 x 106

•Air• Ambient temp.• l x l O 6

•Air• Ambient temp.• l x l O 6

•Air• Ambient temp.• 1 x 106

•Air• Ambient temp.• 1.55 xlO6

•Air• Ambient temp.• 1.06 xlO6

•Air• Ambient temp.

Accum.dose

(MGy)3.2x10-3

3 x 10-3

20

102

120

120

120

205

205

205

55

55

11.3

100

Accep.doses(MGy)

1.5x10-3

over3x10-3

over 20

over 102

120

TBD

50

over 205

over 205

over 205

under 3

under 3

over 11.3

dependsratedlifetime

Mainresults or issues

Sensitivity of camerahead decreased inproportion to doses.The improved CCUis clear effective.

Reflecting mirrorsdegraded.

The 1 st stage perisco-pe was modified.

Finishing of the SSsubstrate is difficult.

Surface erosion likeislands occurred.

Surface erosionoccurred extremely.

Transmittance loss isvery small.

(ditto)

Transmittance loss isnearly zero in rangingof visible-wavelength.• Clouds were formed.• Discolored.

• Discolored.• Adhesive strengthwas lost at 55MGy.

There is not change.

Rated life time is 500hr.

(contd.)

- 49 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-2 (Viewing systems)

SheetNo.

S2-IF01

S2-IF02

S2-IF03

Component

Image fiber(OH doped)

Image fiber(fluorine doped)

In-situ treatmentto image fiber byH2gas

Cla-ssifi-cation1

1

3

•Dose rate (R/h)•Atmosphere•Temperature•9.3x105•Air• Ambient temp.•4.95x105•Air• Ambient temp.• 1.46 xlO6

• H2 gas• Ambient temp.

Accum.dose

(MGy)28.3

3.4

100

Accep.doses(MGy)

3.1

3

100

Mainresults or issues

Recovery treatmentwas carried out to thedamaged fiber.Precoating materialwas broken.

The treatment is cleareffective.

- Classification : 1, Commercial product;- Accepetance doses : tentative value.

2, Modified product; 3, Newly-developed product

- 50 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test ResultsSubtask-3 (Common components)

SheetNo.

S3-CB01

S3-CB02

S3-CB03

S3-CB04

S3-CB05

S3-WR01

S3-WR02

S3-WR03

S3-WR04

S3-WR05

S3-TC01

S3-TC02

Component

Power cable forAC servo motor

Signal cable forAC servo motor

Thermocouplecable for ACservo motorSiN fabricinsulator usedcablePolymer insulatedcoaxial cable

Ceramic insulatedwire (S/a) &Imiteted statorcoil used the wireCeramic insulatedwire (S/b) &Imiteted sensorcoil used the wirePolyimideinsulated wire(H/a-1) &Outgassing treatedwire (H/a-2)Hybrid insulationwire(H/b-l)&Outgassing tretedwire (H/b-2)Virnish insulatedwire (polyimide,polyamideimide)Polyimideinsulated T/C(H/a-1) &Outgassing treatedT/C (H/a-2)Hybrid insulationT/C(H/b-l)&Outgassing treatedT/C (H/b-2)

Cla-ssifi-cation3

3

3

3

3

3

3

2

3

2

2

2

•Dose rate (R/h)•Atmosphere•Temperature• 7 x l 0 5

•Air• Ambi. temp• 7 x l 0 5

•Air• Ambi. temp• 7 x l 0 5

•Air• Ambi. temp•2xlO 6

• N2 gas• 250 °C•2xlO 6

• N2 gas• 250 °C• 1.5x106• N2 gas• 250 °C

• 1.5x106• N2 gas• 250 °C

• 1.5 xlO6

• N2 gas• 250 °C

• 1.5 xlO6

• N2 gas• 250 °C

•2xlO 6

• N2 gas• 250 °C• 1.5x106• N2 gas• 250 °C

• 1.5x106• N2 gas• 250 °C

Accum.dose

(MGy)75

75

75

100

100

47.7

47.7

47.7

47.7

100

47.7

47.7

Accep.doses(MGy)

over 75

over 75

over 75

over 100

over 100

over 47.7

over 47.7

over 47.7

over 47.7

30*,100**

over 47.7

over 47.7

Mainresults or issues

Improvement of theterminal connectionneed.(ditto)

(ditto)

Flexibility is not sogood.

Strong restitution.

Electriccharacteristics aresusceptible to thehumidity.(ditto)

Strong restitution.

Hybrid effect is notrecognized.

* : polyamideimide** : polyimide

There is not change.

Hybrid effect is notrecognized.

(contd.)

- 51 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-3 (Common components)

SheetNo.

S3-CN01

S3-CN02

S3-CN03

S3-CN04

S3-CN05

S3-ID01

S3-ID02

S3-ID03

S3-ID04

S3-ID05

S3-ID06

Component

Polymer insulatedelectric connector(thermoplasticitypolyimide, PEEK)Polymer insulatedelectric connector(thermoplasticitypolyimide)Ball bearing usedelectric connector(1st stage)Ball bearing usedelectric connector(2nd stage)Ball bearing usedelectric connector(3rd stage)Vacuum gauge(capacitancemanometer)Vacuum gauge(Pirani gauge)

Vacuum gauge(ionization gauge)

Ultra-sonictransducer(perpendicularinjection type)Ultra-sonictransducer(inclined injectiontype)Ultra-sonictransducer (brazedtype probe)

Cla-ssifi-cation2

2

3

3

3

1

1

1

1

1

1

•Dose rate (R/h)•Atmosphere•Temperature•2xlO 6

• N2 gas• 250 °C

• 1.5 xlO6

• N2 gas• 300 °C

• 1 x 106

•Air• Ambient• l x l O 6

•Air• Ambient• 1 x 106

•Air• Ambient•3 .4xl0 5

• Air / Vacum• Ambient•3 .4xl0 5

• Air / Vacum• Ambient•3 .4xl0 5

• Air / Vacum• Ambient• 1 x 106

•Air• Ambient

• 1 x 106

•Air• Ambient

•1.9xlO6

•Air• Ambient

Accum.dose

(MGy)100

11.2

100

100

100

1.200 Gy

10.2

10.2

10

10

2.3

Accep.doses

(MGy)over 100*

over 11.2

over 100

75

25*, 50**

notrecomme-ndover 10.2

over 10.2

1

0.1*, 1**

over 2.3

Mainresults or issues

* : evaluation inoxygen free condition.

(ditto)

Not handy.

Contact resistancebegan to increasefrom 75 MGy.* : 22 pins connector** : 6 pins connector

Impossible to detectthe signals after 30min.Rad. hardness cableand connector need.

(ditto)

Echo height began todecrease fromlMGy.

* : acrylic wedge** : PEI wedge

Acrylic wedge cannot use in radiationenvironment.

(contd.)

- 52 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-3 (Common components)

SheetNo.

S3-OT01

S3-OT02

Component

Carbon fiberreinforced plastic(CFRP)

Elastomer gasket(EPDM : ethylen-propylen, AU :urethane)

Cla-ssifi-cation1

1

•Dose rate (R/h)•Atmosphere•Temperature• 1.4 xlO6

•Air• Ambient

•2.4xlO4

• 1.9 xlO5

• 1.57 xlO6

•Air• Ambient

Accum.dose

(MGy)50

15.7

Accep.doses(MGy)

50*,over 50**

0.9

Mainresults or issues

Accep.doses dependson the matrixmaterials.* :epoxy;** : polyimide,

: bismaleimideEPDM-gaskethardened withaccumulation dose.On the contrary, AU-gasket got softer.

- Classification : 1, Commercial product; 2, Modified product; 3, Newly-developed product- Acceptance doses : tentative value.

- 53 -

This is a blank page.

JAERI-Tech 99-003

Appendix 4Summary, Data sheets, Tables and Figures

[Subtask-1 : Robotics]

- 55 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test ResultsSubtask-1 (Robotics)

SheetNo.

Sl-DV01

Sl-DV02

Sl-DV03

Sl-DV04

Sl-DV05

Sl-DV06

Sl-DV07

Sl-DV08

Sl-DV09

Sl-DV10

Sl-DV11

Sl-DV12

Component

AC servo motor(1st stage)

AC servo motor(2nd stage)

AC servo motor(3rd stage)

Induction motor

Four kinds ofgrease lubricants

Ball bearing(race:thermoplas-ticity polyimide)Ball bearing(Race: thermosett-ing polyimide)Ball bearing(race:PEEK)

Ball bearing(separator:SL alloy)Ball bearing(separator:SS310 alloy)Ball bearing(ballxeramics)

Reduction gearbox (HarmonicDrive)

Cla-ssifi-

cation3

3

3

3

2

2

2

2

2

2

2

1

•Dose rate (R/h)•Atmosphere•Temperature• 1.5 xlO6

•Air• Ambi. temp• 1.3.4 xlO6

• Vacuum• Ambi. temp• 1.01 xlO6

• Vacuum• Ambi. temp•5xlO 5

• N2 gas• 200 °C• 1.37xlO6

•Air• Ambi. temp

•5.95xl0 5

• Air & Vacuum• Ambi. temp•5.95xl05

• Air & Vacuum• Ambi. temp•5.95xl05

• Air & Vacuum• Ambi. temp•5.95x105• Air & Vacuum• Ambi. temp•5.95xl05

• Air & Vacuum• Ambi. temp•5.95xl05

• Air & Vacuum• Ambi. temp• 1.1x106•Air• Ambi. temp

Accum.dose

(MGy)67

65

11

11.5

49.7

0.52

0.38

3.09

3.03

16.4

11.6

30 (SK-2)40 (GK-1)

Accep.doses(MGy)

4 0 - 5 0

55

10

10

TBD

TBD

TBD

TBD

TBD

TBD

TBD

30 (SK-2)25 (GK-1)

Mainresults or issues

Stopped by hardeningof grease lubricant inball bearings.Stopped by breakageof ball bearings.

(ditto)

Stopped by hardeningof grease lubricant.

Hardening,withstanding load andweight loss weretestedStopped by abrasionof retainer.

(ditto)* Race material

(ditto)

Total performance isbetter than othertypes.Running time in vac.condition is longerthan air condition.This type is nothandy.

•SK-l&GK-l meantypes of grease.• SK-2 grease gotsofter and GK-1hardened.

(contd.)

- 56 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-1 (Robotics)

SheetNo.

Sl-SS01

Sl-SS02

Sl-SS03

Sl-SS04

Sl-SS05

Sl-SS06

Sl-SS07

Sl-SS08

Sl-SS09

Sl-SS10

Sl-SS11

Sl-SS12

Sl-SS13

Component

Potentiometer(wirewound type)

Potentiometer(wirewound type)

Potentiometer(magnet resistivetype)Differentialtransformer

Differentialtransformer

Synchronousresolver

Rotary encoder

Optical fiber usedrotary encoder(prototype)Optical fiber usedrotary encoder

Strain gauge(foil type)

Strain gauge(capsule type)

Distance sensor(laser type)

Distance sensor(optical fiber usedlaser sensor)

Cla-ssifi-cation1

1

1

1

1

1

1

3

1

1

1

1

3

•Dose rate (R/h)•Atmosphere•Temperature•9.36xl05

•Air• Ambi. temp• 1.01 xlO6

• N2 gas• Ambi. temp•9.36xl05

•Air• Ambi. temp•9.76xlO5

•Air• Ambient temp.•9.71xlO5

• N2 gas• Ambi. temp• 1.11 xlO6

•Air• Ambi. temp• 1.11 x106

•Air• Ambi. temp• 1.04 xlO6

•Air• Ambi. temp• 1.01 xlO6

• N2 gas• Ambi. temp• 1.5 xlO6

•Air• Ambi. temp• 1.5 xlO6

•Air• Ambi. temp•98.5• 1.08 xlO4

• 1.57 xlO6

•Air• Ambi. tempplanning

Accum.dose

(MGy)14.3

8.22

13.5

14.9

4.5

17.7

0.01

16.4

1.4

127

127

0.077

Accep.doses(MGy)

0.14

3

2.5

0.2

4.3

1.8

impossi-ble

over 16.4

1.1

80

over 80

TBD

Mainresults or issues

Stopped by troubleof rotationalmechanism.Output signals wereshifted up or down.

Stopped by troubleof rotationalmechanism.Stopped by troubleof linear motionmechanism.Signals could notdetect at 4.5 MGy.

Stopped by troubleof rotationalmechanism.Signal could notdetect just afterirradiation.There is not change.

Electric devices in thesensor were damaged.

Insulation resistanceof lead wiredecreased.Take care to installthe gauge.

Rad.hardness isdifferent by dose rate.

Detectable range isfrom 800 to 1,200nm.

(contd.)

- 57

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-1 (Robotics)

SheetNo.

Sl-SS14

Sl-SS15

Component

Proximity sensor(magnetic type)

Accelerometer(servo rebalancetype)

Cla-ssifi-cation1

1

•Dose rate (R/h)•Atmosphere•Temperature• 1.8 xlO5

•Air• Ambi. temp• 1.57x106• N2 gas• Ambi. temp

Accum.dose

(MGy)26

2.16

Accep.doses

(MGy)over 26

0.7

Mainresults or issues

There is not change.

Amplifier wasdamaged.

-Classification: 1, Commercial product; 2, Modified product; 3, Newly-developed product- Accepetance doses : tentative value

- 58 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) I Sheet No. | S1-DV01Component AC servo motor (First stage)Classification Newly-developed product

I. Major Specifications

- Supplier : Yasukawa Electric Co.- Rated power : 100 W - Rated torque : 5.4 kgf-cm - Rated speed : 1,800 rpm- Power rate : 0.3 kW/s - Rotor inertia moment : 9.6 gf-cm-s2

- Type of position sensor : Resolver- Dimensions : 260 mm in dia x 130 mm in length - Weight: 15 kgf- Electric insulation material : Stator coil (ceramics (SiO2)), Resolver coil (ceramics (SiO2))- Lubricant of ball bearing : Radiation hard synthetic grease

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5xl06

Temperature Ambient Humidity Ambient Atmosphere [ Air

3. Measurement Items & Acquisition Period

(1) Motor voltage & current: Under irradiation(2) Temperature (stator coil, ball bearings) : Under irradiation(3) Dismantling inspection : After irradiation

4. Accumulation Doses | 67 MGy 5. Acceptance Doses | 40 ~ 50 MGy

6. Results

(1) Rotation shaft sticked due to hardening of the grease lubricant in the ball bearings.(2) Electric characteristics were not change after irradiation.(3) Total running time is 4,475 hr.

7. Reference Data Sheet

- S1-DV01-1 Main specifications of the 1st stage AC servo motor and appearance ofthe motor installed in the gamma irradiation cell.

- Sl-DVOl-2 Characteristics change of the motor under irradiation.- S1-DV01-3 Appearance of the motor parts after the irradiation test.

- 59 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DVO1-1

Table 1 Main specifications of the 1st stage AC servo motor

ItemRated power (W)Rated torque (kgf-cm)Rated speed (rpm)Power rate (kW/s)Rotor inertia moment (gf-cm-s2)Type of position sensorDimensions (mm) & Weight (kg)Electric insulation materialLubricant of ball bearing

1005.41,8000.39.6Resolver260india. xl30inlngth, 15Stator & Resolver coils : ceramics (SiO2)Radiation hard synthetic grease

Overview of the first stage rad-hard AC servo motor in the irradiation cell.Left, the motor; center, radiation source lifts up from swimming pool.

- 60 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV01-2

c y , 338 29IBB

CB :

CV3 Cvg C" C3

© M

01

easur i nt

02

j1

p e r i o d '

.1

9 1 - 1 / 2 9

09l

1

69

40

2B

o e e.BBll .i67361 .333611 .499861 .666111 .832361 .999611

(a) Characteristic changes of the first stage motor under irradiation.Accumulation dose, 2.72 MGy; running time, 411 hr.01, motor voltage; 02, motor current; 09, environmental temperature.

C B :

© d e u u r l n t period V92-3/B - 4/9

.6911 136.321 273. 842 -4B9.363 3-46 . 884 682.683 819.126

(b) Characteristic changes of the first stage motor under irradiation.Accumulation dose, 42.5 MGy; running time, 3434.5 hr.01, motor voltage; 02, motor current; 09, environmental temperature.

- 61 -

tn33

I—i

to1

oo

(a) Bracket side ball bearing used for the first stage motorafter irradiation of 67 MGy. Grease lubricant harden and itcaused the trouble.

(b) Overview of rotors (upper) and resolver sensor coils (bottom)after irradiation of 67 MGy. These parts were rusted by moisturein the air.

1resnft

ftft

O

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) 1 Sheet No. | S1-DV02Component AC servo motor (Second stage)Classification Newly-developed product

1. Major Specifications

- Supplier : Yasukawa Electric Co.- Rated power : 100 W - Rated torque : 5.3 kgf-cm - Rated speed : 1,800 rpm- Power rate : 0.85 kW/s - Rotor inertia moment : 4.3 gf-cm-s2

- Type of position sensor : Resolver- Dimensions : 98 mm in dia x 175 mm in length - Weight: 6.2 kgf- Electric insulation material : Stator coi! (ceramics (SiO2)), Resolver coil (ceramics (SiO2))- Lubricant of ball bearing : Self lublicating alloy (Cu-W) type retainer

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 | Dose Rate(RZhr) | 1,34 xTemperature | Ambient | Humidity | Ambient j Atmosphere | Vacuum

3. Measurement Items & Acquisition Period

(1) Motor voltage & current: Under irradiation(2) Temperature (stator coil, ball bearings) : Under irradiation(3) Dismantling inspection : After irradiation

4. Accumulation Doses | 65 MGy 5. Acceptance Doses | 55 MGy

6. Results

(1) The motor was troubled by abrasion and breakage of the retainers in the bearings.(2) Total running time is 4,800 hr corresponding to doses of 61 MGy.

7. Reference Data Sheet

- S1-DV02-1 Main specifications of the 2nd stage motor and appearance of the motor installed in thegamma irradiation cell.

- S1-DV02-2 Characteristics change of the motor under irradiation.- S1-DV02-3 Appearance of the damaged bearings after the irradiation test.

- 63 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV02-1

Table 1 Main specifications of the 2nd stage AC servo motor

ItemRated power (W)Rated torque (kgfcm)Rated speed (rpm)Power rate (kW/s)Rotor inertia moment (gfcm-s2)Type of position sensorDimensions (mm) & Weight (kg)Electric insulation materialLubricant of ball bearing

1005.31,8000.854.3Resolver98india. xl75inlngth, 6.2Stator & Resolver coils : ceramics (SiO2)Self lubricating alloy (Cu-W) type retainer

Overview of the second stage rad-hard AC servo motor and vacuum chamber.Left, the motor; right, vacuum chamber for containing the motor.

- 64 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV02-2

I Y. 1

lee

48

28

488C"C3

CC:480C'C3

i

i i—™

1

1• / • • •

T "

18

63

j

8 8 e15 18.3333 21.8666 25 26.3333 31.6666 35

(a) Characteristic changes of the second stage motor under irradiation.Accumulation dose, 13 MGy.03, stator coil temp.; 05, bearing temp.; 10, ultimate pressurein the chamber.

l y.1 0 9

88

•?T<% CC : «IRflS212.DftT3488 488 5

Z'Cl CV3

4 9

t

fir

• — — — *

i

» i—:—

18

I

mi7

ri8 8 8

58 52.5 55 57.5 68 62.5 65

(b) Characteristic changes of the first stage motor under irradiation.Accumulation dose, 61 MGy03, stator coil temp.; 05, bearing temp.; 10, ultimate pressurein the chamber.

- 65 -

CD50

- 3CDO

IOo

(a) Bearing retainers after irradiation of 64.5 MGy.Material, SL alloy; doses, 64.5 MGy; running time, 4,814 hr.Upper, bracket side; bottom, resolver side.

(b) Overview of rotor axis. Around the rotor axis waslittered with some balls.

n5?

f t

CS3

n

o

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) | Sheet No. | S1-DV03Component AC servo motor (Third stage)Classification Newly-developed product

I. Major Specifications

- Supplier : Yasukawa Electric Co.- Rated power : 462 W - Rated torque : 15 kgf-cm - Rated speed : 3,000 rpm- Power rate : 29.3 kW/s - Rotor inertia moment : 0.73 gf-cm-s2

- Type of position sensor : Resolver- Dimensions : 80 mm in dia x 211 mm in length - Weight: 5 kgf- Electric insulation material : Stator coil (ceramics (SiO2)), Resolver coil (polyimide)- Lubricant of ball bearing : Self lublicating alloy (Cu-W) type retainer

2. Irradiation ConditionsFacility [ No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.01x30^

Temperature ] Ambient 1 Humidity j Ambient j Atmosphere | Vacuum

3. Measurement Items & Acquisition Period

(1) Motor voltage & current: Under irradiation(2) Temperature (stator coil, ball bearings) : Under irradiation(3) Dismantling inspection : After irradiation

4. Accumulation Doses | 11 MGy 1 5. Acceptance Poses [ 10 MGy

6. Results

(1) The motor was troubled by abrasion and breakage of the retainers in the bearings.(2) Total running time is 1,074 hr corresponding to doses of 11 MGy.

7. Reference Data Sheet

- S1-DV03-1 Main specifications and overview of the 3rd stage AC servo motor.- S1-DV03-2 Compare the dimensions of each stage's AC servo motor.- S1-DV03-3 Characteristics change of the motor under irradiation.- S1-DV03-4 Appearance of the damaged bearings after the irradiation test.

- 67 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV03-1

Table 1 Main specifications of the 3rd stage AC servo motor

ItemRated power (W)Rated torque (kgfcm)Rated speed (rpm)Power rate (kW/s)Rotor inertia moment (gfcnvs2)Type of position sensorDimensions (mm) & Weight (kg)Electric insulation materialLubricant of ball bearing

462153,00029.30.73Resolver80india. x211 inlngth, 5Stator coil: ceramics, Resolver coil : polyimideSelf lubricating alloy (Cu-W) type retainer

(a) Overview of the third stage rad-hard AC servo motor.Four thermocouple connectors are equipped to the casing.

(b) The motor was installed in the vacuum chamber.

- 68 -

1st. Phase100W5. 41 Kef • cmIBOOrPm15*6

3rd. Phase462W15kgf-cm3000rPm5kg

2nd. Phase1OOW5- 30Kgf-cm1800rPm6. 2K«

>CDSO

—3

o

IO

oCO

81

i

Comparison of dimensions of the 1st, 2nd and 3rd stage rad-hard AC servo motors.

CAI—t

JAERI-Tech 99-003

Reference Data Sheet /S1-DV03-3

2 8

8

scan time 10:0

123.225<3RD~M0?0R CURRENT

0.270

scan count 4238 0

.833333 1.66666 2.5 3.33333-4.16666 5 c hour 3

a) Voltage : 8 / Current : 9

C V. 3

8 8

400C " C D

4B

2 8- -

10j

141.700SXD

scan count 4230

8 .833333 1.66666 2.5 3.33333 4.16666 5 c hour* ]

b) Stator coH temperature : 10

C X 3188

8 8

6 8

4 8

2 8

488[•C]

i —--

14

13

(—-—

12

scan count0 9 B r ._

8 .833333 1.66666 2.5 3.33333 4.16666 5 c h o u r 3

CV3

ftMBIR5

150.400

'l44!lB0

'4! 051

423

c) Bearing temp. : 12, 13 / Chamber pressure : 14

Characteristics changes of the third stage motor for five hoursafter starting of irradiation.

- 70 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV03-4

(a) Overview of damaged bearing after irradiation of 11 MGy.

(b) The retainer broken into small pieces.

- 71 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) | Sheet No. | S1-DV04Component Induction motorClassification Newly-developed product

1. Major Specifications

- Supplier : Hitachi Works Co.- Rated power : 400 W - Rated torque : 27 kgf-cm - Rated speed : 1,500 rpm- Dimensions : 130 mm in dia x 225 mm in length - Weight: 10 kgf- Electric insulation material : Stator coil (polyimide)- Lubricant of ball bearing : Radiation hard synthetic grease

2. Irradiation ConditionsFacility | No. 1 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 5 x l O 5

Temperature | 200 °C j Humidity | Ambient 1 Atmosphere | N2 gas

3. Measurement Items & Acquisition Period

(1) Motor voltage & current: Under irradiation(2) Temperature (stator coil, ball bearings) : Under irradiation(3) Dismantling inspection : After irradiation

4. Accumulation Doses | 11.5MGv 1 5. Acceptance Doses | 10 MGy

6. Results

(1) Rotation shaft sticked due to hardening of the grease lubricant in the ball bearings.(2) Electric characteristics were not change after irradiation.(3) Total running time is 2,000 hr corresponding to doses of 1 OMGy.(4) The test will be continued up to 300 MGy after changed a new bearing.

7. Reference Data Sheet

- S1-DV04-1 Overview of the induction motor and irradiation chamber.- S1-DV04-2 Characteristics change of the motor under irradiation.

- 72 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV04-1

255

225

(a) Overview and dimensions of the rad-hard induction motor.

(b) The motor (upper) was installed in the chamber (bottom)and irradiated under 250 °C in nitrogen gas environments.

- 73 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV04-2

250

150

50O : Volts• : Current "

0

1

4 6Dose (MGy)

8 10

(a) Electric characteristic changes of the rad-hard induction motoras a function of doses.

300

250

200

2H 15$o OQ.

H 100

50

O : Stator coil temp.

D : Bearing temp.

4 6 8Dose (MGy)

10

(b) Temperature changes of the rad-hard induction motoras a function of doses.

- 74 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) j Sheet No. | S1-DV05Component Four kinds of radiation hard grease lubricants (GS-1, GS-4, GS-7, GS-13-2)Classification Modified product1. Major Specifications

- Supplier : Matsumura Oil Research Co.- Identification name : GS-1, GS-4, GS-7, GS-13-2- Composition of base oil

(1) GS-1 : di-alkyl-tetra-phenylether (R2-4P2E)(2) GS-4 : tetra-phenylether (4P2E)(3) GS-7 : R2-4P2E + penta-phenylether (5P4E)(4) GS-13-2 : 4P2E + mono-alkyl-tetra-phenyl-ether (R-4P2E)

- Thickener & othersBentonite, Powdered MoS2, Antioxidant

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERJRadiation Source \ Co-60 | Dose Rate (R/hr) | 1.37 xH)6

Temperature | Ambient | Humidity 1 Ambient | Atmosphere j Air

3. Measurement Items & Acquisition Period

(1) Weight loss at 150 °C in vacuum (10-4 Pa) : Before irradiation(2) Penetration : After irradiation(3) Withstanding load by Block on Ring Method* : After irradiation

* Test conditionsTemperature : 150 °C Atmsphere : Vacuum (-10 Pa)Rotation speed : 100 rpm Applied load : 20 Ibs/min

4. Accumulation Doses 49.7 MGy 5. Acceptance Doses | 49.7 MGy6. Results

(1) The grease harden in the order of GS-1, GS-7, GS-13-2 and GS-4 after irradiation.(2) On the results of withstanding load test, the load of GS-4 and GS-13-2 after the irradiation of 10

MGy are little change compared brfore irradiation.(3) Weight loss of GS-4 at temperature of 150 °C in vacuum, is very large compared with others.

7. Reference Data Sheet

- S1-DV05-1 Appearance of grease lubricants in the irradiation cell.- S1-DV05-2 Characteristics change of the grease lubricants before and after irradiation.

- 75 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV05-1

Appearance of the grease lubricants in the irradiation cell.

76 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV05-2

Table 1 Weight loss change of the grease lubricants after exposure at high temperature in vacuum.11

I. D. Name

GS-1GS-4GS-7

GS-13-2

Composition of base oil (vol%)

R2-4P2E (100)4P2E(100)R2-4P2E (60), 5P4E (40)R-4P2E (70), 4P2E (30)

Weight loss after exposure (%)24 hr5.54

77.9918.0332.72

48 hr7.99

78.7928.2842.35

96 hr10.5979.1937.8751.56

Temperature : 150 °C Vacuum : ~ 10"4 Pa

Table 2 Penetration change of the grease lubricants as a function of accumulated exposure dose.

I. D. Name

GS-1GS-4GS-7

GS-13-2

PenetrationBefore irradiatin

288266265265

IMGy323265304291

5.1 MGy351265300293

10.2 MGy353258323290

Table 3 Withstanding load change of the grease lubricants on the Block on Ring Method*as a function of accumulated exposure dose.

I. D. Name

GS-1GS-4GS-7

GS-13-2

Withstanding load (lbs)Before irradiatin

863625780847

lMGy840540760780

5.1 MGy830650720770

10.2 MGy550600540865

* Test condition / Temperature : 150 °C, VacuumApplied load : 20 lbs/min

~ 10 Pa, Rotation speed : 100 rpm

- 77 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) | Sheet No. | S1-DV06Component Ball bearing with thermoplasticity polyimide retainer (Type A)Classification Modified product1. Major Specifications

- Supplier : Yasukawa Electric Co.- Identification name : Type A- Type of the bearing : Angular type with shield plate- Dimensions : 42 mm in out. dia. x 20 mm in dia. x 12 mm t- Basic dynamic (C) & static (Co) load rating : C (765.9 kgf), Co (362.9 kgf)- Material of retainer : Thermoplasticity polyimide (AURAMTR)- Solid lubricant: MoS2

2. Irradiation ConditionsFacility 1 No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 5.95 xlO5

Temperature | Ambient | Humidity j Ambient | Atmosphere [ Vac, Air

3. Measurement Items & Acquisition Period

(1) Applied load conditionsRotation speed : 1,500 rpm, Pre-compression : 6.75 kgf

(2) Motor voltage & current: Under irradiation(3) Bearing temperature : Under irradiation(4) Presuure in the test chamber : Under irradiation

4. Accumulation Doses | 0.52 MGy (max.) | 5. Acceptance Doses | TBD6. Results

(1) Two pairs of bearings were irradiated at R. T. (ambient temp.) in vacuum, and one pair of bearingwas tested at R. T. in vacuum without the irradiation.

(2) Total running time of irradiated bearings and non-irradiated bearing is about 70 hr and 402 hr,respectively.

(3) The bearings were troubled by abrasion of the retainer and this result showed that gamma-ray hasdirect effect on deterioration of the retainer material.

7. Reference Data Sheet

- S1-DVO6-3 Overall structure of tested bearings and the test stand.- S1-DV06-2 Appearance of bearing test stand.- S1-DV06-3 Running test results of the Type A ball bearings.- S1-DV06-4 Characteristics change of the Type A ball bearings under irradiation in vacuum.- S1-DV06-5 Characteristics change of the Type A ball bearings under non-irradiation in vacuum.- S1-DV06-6 Appearance of the Type A bearing after irradiation.

78 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV06-1

< * 6 . 35C1 2 -<1.1M

Iw

W7rf/Wi

2

— o

-s.

-o.o

n

M

(a) Structure of the Type A, Type B,Type C and Type D bearings.

(b) Structure of the Type E bearing.

(c) Testing equipment is composed of a radiation hard induction motor and two testedbearings installed on both end of rotor axis.

- 79 -

(a) Two bearings are installed on both end of rotor axis.

00

o

\

(b) Pre-compression load is applied tobearings by using coil spring.

(c) Set-up for non-irradiation test in vacuum. (d) Set-up for irradiation test in vacuum.

re3nn

n

boOS

>

CDO

oo

JAERI-Tech 99-003

Reference Data Sheet / S1-DV06-3

Table 1 Running test results of the Type A ball bearings

SpecimenNo.

A-1,2A-3, 4A-5, 6

Test conditions

Gamma

V

-

Air---

Vac.

VVV

Inert gas---

Temp.R. T.R. T.R. T.

Runningtime (hr)

78.8588.33

402.20

IrradiatinTime (hr)

58.1386.82-

Doses(MGy)

0.350.52

-

- 81 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV06-4

C 54 3tea

33

60

40

CAD

Mitt I J "

3888Crpm]

seeC* C3

r -

" ~ " ^ " " " • " T

t

;

f j_ r

580C-C3

3 0 0

|

5CV3

lAdMPfeMfttfjIil^^^L^^ytofl^VlyNI 1

a

T3

T1T2 I1

< 1 — 01> "torque

< 1 - 02> rpmrtitiorul sped uolt

R< 1 - 03> TEMPIT j bearing No . 1

< 1 - 04> TEMP2*-n bearing No . 2

< 1 - 03> TEMP3TQstator co i l temp.

< i - 06> pressn chamber pressure

13.3333 26.6666 40 53.3333 66.6666

(a) Overall profile

80 C hour 3

(b) Measured for 10 hours after starting

C v. 1100

40

20

3000CrpmJ

580

c* c:500 500

C"C3 CVD

1

1

.._

T3

R

.

I ! T20 0 8 8 8 ' ,

69.5 71.1666 72.8333 74.5 76.1666 77.8333 79.5 c hour 3

(c) Measured for 10 hours before stopping

Characteristic changes of the Type A (specimen No. A-l, 2) ball bearingsunder irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 82 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV06-5

lee2 3000 300 500 500 5

Eft] Crpm] CC3 [ - C ] I 'C] . CV3 < 1 - 01> torque. toruque current

< 1 - 02> rpmjjrtational sped wo_lt< 1 - 03> TEMPI•T4 bearing No . 1

< 1 - 04> TEMP2T O bearing No.2

< 1 - 05> TEMP3^.-stator coil temp.

< 1 - 06> pressnchamber pressure

0 0 a&.&€>&€>& 8 .33333 10

hour ]

(b) Measured for 10 hours after starting

106.666 108.333 110 111.666 113.333 C hour

(c) Measured for 10 hours before stopping

Characteristic changes of the Type A (specimen No. A-5, 6) ball bearingsunder non-irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 83 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV06-6

*4&

Appearance of the Type A bearing after irradiation of 0.52 MGy.Upper, rotor and bearing with accumulation of abrasion powder;middle, abrasion powder was generated from bearing;bottom, abrasion powder scattered in bracket.

- 84 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) I Sheet No. | S1-DV07Component Ball bearing with thermosetting polyimide retainer (Type B)Classification Modified product1. Major Specifications

- Supplier : Yasukawa Electric Co.- Identification name : Type B- Type of the bearing : Angular type with shield plate- Dimensions : 42 mm in out. dia. x20 mm in dia. x 12 mm t- Basic dynamic (C) & static (Co) load rating : C (765.9 kgf), Co (362.9 kgf)- Material of retainer : Thermosetting polyimide (VESPELTR)- Solid lubricant: MoS2

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 5.95 xlO5

Temperature | Ambient Humidity | Ambient I Atmosphere | Vac, Air

3. Measurement Items & Acquisition Period

(1) Applied load conditionsRotation speed : 1,500 rpm, Pre-compression : 6.75 kgf

(2) Motor voltage & current: Under irradiation(3) Bearing temperature : Under irradiation(4) Presuure in the test chamber : Under irradiation

4. Accumulation Doses | 0.38 MGy (max.) 5. Acceptance Doses | TBD6. Results

(1) Two pairs of bearings were irradiated at R. T. (ambient temp.) in vacuum, and one pair of bearingwas tested at R. T. in vacuum without the irradiation.

(2) Total running time of irradiated bearings and non-irradiated bearing is about 63 hr and 670 hr,respectively.

(3) The bearings were troubled by abrasion of the retainer and this result showed that gamma-ray hasdirect effect on deterioration of the retainer material.

(4) There is no large difference between the thermoplasticity polyimide and thermosetting polyimideretainers.

7. Reference Data Sheet

- S1-DV07-1 Running test results of the Type B ball bearings.- S1-DV07-2 Characteristics change of the Type B ball bearings under irradiation in vacuum.- S1-DV07-3 Characteristics change of the Type B ball bearings under non-irradiation in vacuum.

- 85 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV07-1

Table 1 Running test results of the Type B ball bearings

SpecimenNo.

B-1,2B-3, 4B-5, 6

Test conditions

Gamma

-

Air---

Vac.

VV

Inert gas---

Temp.R. T.R. T.R. T.

Runningtime (hr)

71.1554.37

670.30

IrradiatinTime (hr)

63.1053.10-

Doses(MGy)

0.380.31

-

- 86 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV07-2

37 46.25

(a) Overall profile

< i - 81> torqueI toruoiue current

< 1 - 62> rpmrt»tion»l sped uolt

R< 1 - 03> TEMPI

j| bearing No.1< 1 - 04> TEMP2jn bearing No.2

< i - 65> TEMP3T«st«top coil temp.

< 1 - 66> pressnchamber pressure

55.5 c hour

3

88

48 -

2

R** 1

^ —

3000Crpm]

P

588f C3

— _

T3

seeC" C3

TlT2

588CC3 CV3

8 8 8 0 8 e1.66666 3.33333 S 6.66666 8.33333 10 c h o u r

(b) Measured for 10 hours after starting

C V. 3188

88

68

48

Cfl]3000Crpm] see

C"C3

500C"C3

500C-C3 CV3

l

R

i

; ui

1 T3j1

•f-TT—| '

I T2 I0 0 0 0 0 0 , •_ ,

44.5 46.1666 47.8333 49.5 51.1666 52.8333 54.5 c hour 1

(c) Measured for 10 hours before stopping

Characteristic changes of the Type B (specimen No. B-3, 4) ball bearingsunder irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 87 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV07-3

s e a1.66666 3.33333

a e a6.66666 8.33333

< 1 - 81> torqueI toruque current

< 1 - 02> rpmnrtitioml sped volt< 1 - 83> TEMPIT< bearing No.l

< 1 - 84> TEMP2—_ bearing No.2

< 1 - 85> TEMP3stator coil temp.

< 1 — 86> presschamber pressure

18 C hour 1

(b) Measured for 10 hours after starting

r ., . 2 3888 500 588 588c x ^ rA] CrpnO . CC3 ['CJ r»r_i186

8 8

CV3

4 0 •

2 8

!

p

II I

T3

i T1

III Mill

... j

i R

T2 1

i

! 18 8 8 8 8263.5 265.166 266.833 268.5 278.166 271.833 273.5 c hour ]

(c) Measured for 10 hours before stopping

Characteristic changes of the Type B (specimen No. B-5, 6) ball bearingsunder non-irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 88 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) Sheet No. S1-DV08Component Ball bearing with polyether-ether-ketone (PEEK) retainer (Type C)Classification Modified product1. Major Specifications

- Supplier : Yasukawa Electric Co.- Identification name : Type C- Type of the bearing : Angular type with shield plate- Dimensions : 42 mm in out. dia. x 20 mm in dia. x 12 mm t- Basic dynamic (C) & static (Co) load rating : C (765.9 kgf), Co (362.9 kgf)- Material of retainer : Polyether-ether-ketone (PEEK)- Solid lubricant: M0S2

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 5.95 xlO5

Temperature | Ambient Humidity | Ambient Atmosphere | Vac, Air

3. Measurement Items & Acquisition Period

(1) Applied load conditionsRotation speed : 1,500 rpm, Pre-compression : 6.75 kgf

(2) Motor voltage & current: Under irradiation(3) Bearing temperature : Under irradiation(4) Presuure in the test chamber : Under irradiation

4. Accumulation Doses | 3.09 MGy (max.) 5. Acceptance Doses | TBD6. Results

(1) Two pairs of bearings were irradiated at R. T. (ambient temp.) in vacuum, and one pair of bearingwas tested at R. T. in vacuum without the irradiation.

(2) One pair of bearing were irradiated at R. T. (ambient temp.) in air, and one pair of bearingwas tested at R. T. in air without the irradiation.

(4) There is large difference in running time between the two pairs bearings which were irradiated invacuum. One side is 530 hr and the other is 155 hr.

(3) Total running time of irradiated bearings and non-irradiated bearing is about 63 hr and 670 hr,respectively.

(3) The bearings were troubled by abrasion of the retainer and this result showed that gamma-ray hasdirect effect on deterioration of the retainer material.

(4) There is no large difference between the thermoplasticity polyimide and thermosetting polyimideretainers.

7. Reference Data Sheet

- S1-DV08-1 Running test results of the Type C ball bearings.- S1-DV08-2 Characteristics change of the Type C ball bearings under irradiation in vacuum.- S1-DV08-3 Characteristics change of the Type C ball bearings under non-irradiation in vacuum.

- 89 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV08-1

Table 1 Running test results of the Type C ball bearings

SpecimenNo.

C-1,2C-3, 4C-5, 6C-9, 102C-1.2*

Test conditions

Gamma

VV--

Air---

V

Vac.

VVV--

Inert gas-----

Temp.R. T.R. T.R. T.R. T.R. T.

Runningtime (hr)

527.10155.17410.78

IrradiatinTime (hr)

519.5310.00--

Doses(MGy)

3.090.06

--

* Since these bearings were made at 2nd stage, the lot is difference in the 1 st stage bearings.

- 90 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV08-2

C V. 3

lee

88

20

2 seee see see see 5

T3

T20 0 0

8 1.66666 3.33333a e e6.66666 8.33333

C 1 - 81> torquei toruque current

< 1 - 82> rpmp rtational sped uolt

< 1 - 83> TEMPIT-J bearing No . 1

< 1 - 84> TEMP2 •yn bearing No.2

< i - 85> TEMP3j*5tator coil temp.

< 1 - 86> pressn chamber pressure

18

(b) Measured for 10 hours after starting

C hour 3

3000 588 588 500C ] C"C3 [• C3 C-c]

188

68

CA3 CrpmD

.. . I . 1R

C"C3

T3

T1

! 1

C" C3 C" CJ CV3

i i* j1 i

1 !. _l

T2

P

i: 1

8 8 0 8 8 01S3 184.666 186.333 188 189.666 191.333 193 c hour

(c) Measured for 10 hours before stopping

Characteristic changes of the Type C (specimen No. C-l, 2) ball bearingsunder irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 91 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV08-3

t ae

se

2 3088 568 508 5©0 5

T3

T1

. I I I I I I I ; 1 1 T 2 H i l la e 81.66666 3.33333 5

< 1 - 0i> torque• toruque current< 1 -02> rpm—rtational sped volt< 1 - 83> TEMPIT< bearing No.1

C t - 94> TEMP2—— bearing No.2

< 1 - 95> TEMP3t t coil temp.

< 1 - B6> presschamber pressure

P

e e e6.66666 8.33333 10

C hour

(b) Measured for 10 hours after starting

Z v. 1iaa

aa

3888Crpm]

seeC'C3

see 508C" CD CV3

T3

T1rr T2

a e e e e 0232,5 234.166 235.833 237.5 239.166 248.833 242.5 hour 3

(c) Measured for 10 hours before stopping

Characteristic changes of the Type C (specimen No. C-5, 6) ball bearingsunder non-irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 92 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) Sheet No. S1-DV09Component Ball bearing with self lubricating alloy retainer (Type D)Classification Modified product

1. Major Specifications

- Supplier : Yasukawa Electric Co.- Identification name : Type D- Type of the bearing : Angular type with shield plate- Dimensions : 42 mm in out. dia. x20 mm in dia. x 12 mm t- Basic dynamic (C) & static (Co) load rating : C (765 kgf), Co (360 kgf)- Material of separater : Self lubricating alloy (W-Cu) (SL-60U™)- Solid lubricant: M0S2

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 5.95 xlO5

Temperature Ambient | Humidity | Ambient | Atmosphere | Vac, Air

3. Measurement Items & Acquisition Period

(1) Applied load conditionsRotation speed : 1,500 rpm, Pre-compression : 6.75 kgf

(2) Motor voltage & current: Under irradiation(3) Bearing temperature : Under irradiation(4) Presuure in the test chamber : Under irradiation

4. Accumulation Doses | 3.03 MGy (max.) 5. Acceptance Doses | TBD

6. Results

(1) Two pairs of bearings were irradiated at R. T. (ambient temp.) in vacuum, and one pair of bearingwas tested at R. T. in vacuum without the irradiation.

(2) Two pairs of bearings were irradiated at R. T. (ambient temp.) in air, and two pairs of bearingswere tested at R. T. in air without the irradiation.

(3) There is no large difference in running time under irradiation between the vacuum and the airenvironmental conditions.

(4) Running time under non-irradiation in spite of air or vacuum conditions is very long than therunning time under irradiation.

(5) On the whole, the performanc of the Type D bearing is better than the Type A, B and C.

7. Reference Data Sheet

- S1-DV09-1 Running test results of the Type D ball bearings.- S1-DV09-2 Characteristics change of the Type D ball bearings under irradiation in vacuum.- S1-DV09-3 Characteristics change of the Type D ball bearings under non-irradiation in vacuum.- S1-DV09-4 Characteristics change of the Type D ball bearings under irradiation in air.- S1-DV09-5 Characteristics change of the Type D ball bearings under non-irradiation in air.

- 93 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV09-1

Table 1 Running test results of the Type D ball bearings

SpecimenNo.

D-1,2D-3,4D-5, 6

2D-1, 2*2D-3, 4 *2D-5, 6*2D-7, 8*

Test conditions

Gamma

V

-

V--

Air---

V

Vac.

V

----

Inert gas-------

Temp.R. T.R. T.R. T.R. T.R. T.R. T.R. T.

Runningtime (hr)

320.63138.10

**2019.0341.82247.63178.82

1400.10

IrradiatinTime (hr)

260.22134.12

-340.03245.90

--

Doses(MGy)

1.550.80

-3.032.19

--

* Since these bearings were made at 2nd stage, the lot is difference in the 1 st stage bearings.** Scheduled shut down.

- 94 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV09-2

iee2 3ee0 seeCAP ErpmD . ['CD

588 5C"CD . CVD

20

r

R 1

1

T3

T1T2

P

I

< 1 — ei> torqusI toruque current

< 1 - 82>, rpmrtational sped uolt< 1 - 83> TEMPITJ bearina No.1

< 1 - 84> TEMP2« bearing No.2

< i - 05> TEMP3_-Bt«top coil temp.

T3< 1 - B6> pre«»nchamber pressure

0 e a1.66666 3.33333

0 0 S6.66666 8.33333 hour 3

(b) Measured for 10 hours after starting

V. D100

80 -

60

40

2CA3

3B00CrpmJ

590['C3

0C3

508f CD

500C'CD

CVD

—

"" ~" ~\ 1

T3

""" I " "i n

I i

P

(fiT2

e e 0 0 0 087.5 89.1666 90.8333 92.5 94.1666 95.8333 97.5

(c) Measured for 10 hours before stopping

Characteristic changes of the Type D (specimen No. D-l, 2) ball bearingsunder irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 95 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV09-3

100

80

2CAD

3000 580 500 588 5CrpmD . C*CD . f C3 . [-C] . CV3

ITS

iTIil MM

0 0 01.66666 3.33333

r r 1T2 ir0 0 06.66666 8.33333

< i - Ol> torqueI toru<=iue current

< 1 - 82>, rpmurtitional sped volt

< 1 - 03> TEMPIJJ bearing No.1

< 1 - 04> TEMP2-._ bearing No.2

< 1 - 05> TEMP3H^tator coil temp.|3< 1 - 06> pressn chamber pressure

10

(b) Measured for 10 hours after starting

hour

iee

8 0

500cc:

CAD CrpmD

i1|i

j

I

P x i1 l \ ' i I I 1

L• CD

31

Zm CD

_ _ —

T9

T1T» I

—

•CD CVD

!

"'" " V riIT "ii

1

1i n - i II i

...20 • -

0 0 0 0 0 087 88.6666 90.3333 92 93.6666 95.3333 97 C hour D

(c) Measured for 10 hours before stopping

Characteristic changes of the Type D (specimen No. D-5, 6) ball bearingsunder non-irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 96 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV09-4

< 1 - 01> torque. toruque current

< 1 - 82> rpmrtat ior>al sped uolt

< 1 - 16> TEMPIbearing No.1

< 1 - 04> TEMP2bearing No.2

< 1 - BS> TEMP3vtator coil temp.

IB C hour

(b) Measured for 10 hours after starting

86 87.6666 89.3333 91 92.6666 94.3333 96 c "our D

(c) Measured for 10 hours before stopping

Characteristic changes of the Type D (specimen No. 2D-1, 2) ball bearingsunder irradiation in air.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 97 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV09-5

2 3000 see see seeC X 3 CV] [rpm] . C'C] . C C3 CCD

1 0 0 .• ' - •

60

28

! -*teSMi!! !**»!**^I

]—

e e e8 1.66666 3.33333

e o6.66666 8.33333

< 1 - 11> torciuetoruque current

< 1 - 12> rpmB r ta t ioni l sped voltK< 1 - 13> TEMPI

—j baering No.1 temp.

< 1 - 14> TEMP2__ bearing No.2 temp.

< 1 - 15> TEMP3T A st«tor coil temp.

C hour(b) Measured for 10 hours after starting

80

60

48

28

2 3B00 see see seeCV3 . Crptn3 . E ' C 3 . C C3 C"C3!

!I

[

i !

!

! /T1 I| i T2

Ii

T T ~j • - " • "

r

T3i ' 1 "

8 8 8 0 0163.5 165.166 166.833 168.5 178.166 171.833 173.5 C h ° " r

(c) Measured for 10 hours before stopping

Characteristic changes of the Type D (specimen No. 2D-7, 8) ball bearingsunder non-irradiation in air.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 98

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) | Sheet No. | S1-DV10Component Ball bearing with SS310 sintered alloy retainer (Type E)Classification Modified product1. Major Specifications

- Supplier : Yasukawa Electric Co.- Identification name : Type E- Type of the bearing : Angular type with shield plate- Dimensions : 42 mm in out. dia. x20 mm in dia. x 12 mm t- Basic dynamic (C) & static (Co) load rating : C (760 kgf), Co (360 kgf)- Material of separater : SS310 sintered alloy (DEITZ™)- Solid lubricant: M0S2

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 5.95 xlO5

Temperature | Ambient | Humidity | Ambient Atmosphere | Vac, Air

3. Measurement Items & Acquisition Period

(1) Applied load conditionsRotation speed : 1,500 rpm, Pre-compression : 6.75 kgf

(2) Motor voltage & current: Under irradiation(3) Bearing temperature : Under irradiation(4) Presuure in the test chamber : Under irradiation

4. Accumulation Doses | 16.4 MGy (max.) [ 5. Acceptance Doses | TBD

6. Results

(1) Two pairs of bearings were irradiated at R. T. (ambient temp.) in vacuum, and one pair of bearingwas tested at R. T. in vacuum without the irradiation.

(2) Two pairs of bearings were irradiated at R. T. (ambient temp.) in air, and two pairs of bearingswere tested at R. T. in air without the irradiation.

(3) On the whole, the running time of the Type E bearings is the longest compared with other typebearings.

(4) Running time in vacuum regardless of irradiation or non-irradiation is clearly longer than the runningtime in air environmental condition.

(5) Total performances of the Type E bearing are better than the Type D bearing.

7. Reference Data Sheet

- S1-DV10-1 Running test results of the Type E ball bearings.- S1-DV10-2 Characteristics change of the Type E ball bearings under irradiation in vacuum.- S1-DV10-3 Characteristics change of the Type E ball bearings under non-irradiation in vacuum.- S1-DV10-4 Characteristics change of the Type Eball bearings under irradiation in air.- S1-DV10-5 Characteristics change of the Type E ball bearings under non-irradiation in air.

- 99 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV10-1

Table 1 Running test results of the Type E ball bearings

SpecimenNo.

E-1,2E-3,4E-5,6

2E-1, 2*2E-3, 4*2E-5, 6*2E-7, 8*

Test conditions

Gamma

VV-V

--

Air-

-VVVV

Vac.

V

----

Inert gas-------

Temp.R. T.R. T.R. T.R. T.R. T.R. T.R. T.

Runningtime (hr)

1320.52**2942.6**1991.9

778.42860.13

1418.90167.68

IrradiatinTime (hr)

1232.271837.73

-

771.17853.98

--

Doses(MGy)

11.016.4

-

0.697.62

--

* Since these bearings were made at 2nd stage, the lot is difference in the 1st stage bearings.** Scheduled shut down.

- 100

JAERI-Tech 99-003

Reference Data Sheet / S1-DV1O-2

2 8

0 0 01.66666 3.33333

< 1 - 01> torqueI toruque current

< 1 - 82> rpm•trtational sped uolt

< 1 - 16> TEMPIT^bear ing No.1

< 1 - 84> TEMP2__ bearing No.2

< 1 - 85> TEMP3tat ' '

T3ator coil temp.

< 1 - 86> pressn chamber pressure

0 0 06.66666 8.33333 13

(b) Measured for 10 hours after starting

hour

Z V. Z130

3000 5001 C3

seeC " C D

seec"c :

cv:

R

1

j ^"

T9

T1' 12

—

e e e e e e138.5 160.166 161.333 163.3 165.166 166.833 168.5 c hour ]

(c) Measured for 10 hours before stopping

Characteristic changes of the Type E (specimen No. E-3, 4) ball bearingsunder irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 101

JAERI-Tech 99-003

Reference Data Sheet / S1-DV10-3

C X 3100

88

60

20

2

f

3869Crpm]

seeC" C3

P

R

II Ti

599C-C3

1

599•C3

!

. _ J L J _i

1 1t 1 'IT

nII '

CV3

1 r ie e a1.66666 3.33333

0 9 06.66666 B.33333

< 1 — 9i> torque• toruque current< 1 - 02> rpm_i-tation»l sped voltR< 1 - 03> TEMPI_. bearing No.1

< 1 - 04> TEMP2__ bearing No.2

T2< 1 - 05> TEMP3stator co i1 temp.

T3< I - 86> press

Q chamber pressure

10 C hour

(b) Measured for 10 hours after starting

C v. Z180

8 0

2 0

2 3000Crpm]

500C'C]

500C" CD

500C* C3

5CV3

r

TV~~

......

rT9

TI

i

0 0 0 0 0 0158.5 160.166 161.833 163.5 165.166 166.833 168.5 c h o u r

(c) Measured for 10 hours before stopping

Characteristic changes of the Type E (specimen No. E-5, 6) ball bearingsunder non-irradiation in vacuum.I, torque current; R, rotation speed; TI, T2, bearing temperature; P, ultimate pressure.

- 102 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV10-4

C V. 3

lee

2 3eee see see seeEV3 . Zrpml [-C] . CC3 . [•( "

8 86.66666 8.33333

< 1 - 81> torque| toruqut currentC 1 - 82> rpmprtation«l sped volt< 1 -.16> TEMPI'

r<bearing No.l

< 1 - 04> TEMP2•bearing No.2

< 1 - 03> TEMPstator coil te

EMP3temp

18 C hour

(b) Measured for 10 hours after starting

2S 8.91666 10.5833 12.25 13.9166 15.5833 17.25 c hour

(c) Measured for 10 hours before stopping

Characteristic changes of the Type E (specimen No. 2E-1, 2) ball bearingsunder irradiation in air.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 103

JAERI-Tech 99-003

Reference Data Sheet / S1-DV10-5

C v. 3lee

80

48

CV33990 see 500 530

CC3 . [ -C] . C'C] .

T r

TZ!a e e e a

0 1.66666 3.33333 5 6.66666 8.33333

< 1 — 11> torque.toruciue current

< 1 - 12> rpmprtational sped uolt

< 1 - 13> TEMPIyj baerinj No.1 temp.< 1 - 14> TEMP2bear ing No.2 temp.T21 - 13> .TEMP3stator coil temp

hour

(b) Measured for 10 hours after starting

129.25 136.916 132.383 134.25 135.916 137.583 139.25 c n o u

(c) Measured for 10 hours before stopping

Characteristic changes of the Type E (specimen No. 2E-5, 6) ball bearingsunder non-irradiation in air.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 104 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) Sheet No. | Sl-DVl 1Component Ball bearing with ceramics balls (Type F)Classification Modified product

1. Major Specifications

- Supplier : Kohyo Seiko Co.- Identification name : Type F- Type of the bearing : Angular type without shield plate and retainer/separater- Dimensions : 42 mm in out. dia. x 20 mm in dia. x 12 mm t- Basic dynamic (C) & static (Co) load rating : C (1,130 kgf), Co (485 kgf)- Material of balls : Ceramics (SiN)- Solid lubricant: MoS2 coated on SS

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 5.95 xlO5

Temperature | Ambient Humidity | Ambient I Atmosphere ] Vac, Air

3. Measurement Items & Acquisition Period

(1) Applied load conditionsRotation speed : 1,500 rpm, Pre-compression : 6.75 kgf

(2) Motor voltage & current: Under irradiation(3) Bearing temperature : Under irradiation(4) Presuure in the test chamber : Under irradiation

4. Accumulation Doses | 11.6MGy (max.) 5. Acceptance Doses TBD6. Results

(1) Three pairs of bearings were irradiated at R. T. (ambient temp.) in vacuum, and one pair of bearingwas tested at R. T. in vacuum without the irradiation.

(2) Running time in vacuum regardless of irradiation or non-irradiation varys widely, in addition, thistype bearing is relatively not handy.

7. Reference Data Sheet

- Sl-DVl 1-1 Running test results of the Type F ball bearings.- Sl-DVl 1-2 Characteristics change of the Type F ball bearings under irradiation in vacuum.- Sl-DVl 1-3 Characteristics change of the Type F ball bearings under non-irradiation in vacuum.

- 105

JAERI-Tech 99-003

Reference Data Sheet / S1-DV11-1

Table 1 Running test results of the Type F ball bearings

SpecimenNo.

F-9, 10F-15, 16F-17, 18

F-3, 4

Test conditions

Gamma

VVV-

Air----

Vac.

VVV

Inert gas----

Temp.R. T.R. T.R. T.R. T.

Runningtime (hr)

43.921369.67

25.52**2041.3

IrradiatinTime (hr)

43.771299.35

2.10-

Doses(MGy)

0.3911.60.02

-

** Scheduled shut down.

- 106 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV11-2

C •/. 3

lee

68

2S

2 3888 580 588 588 5CV3 . CrpmJ . ['C1 . CC3 . [-C] . CV3

jjdr>*V44*«*»^^

< 1 - 81> -torque. toruoiue current

< 1 - 82> rpmH rtit ion<1 sped uolt< 1 - 16> TEMPI

T|bearing No.1

< 1 - 84> TEMP2bearing No.2

< 1 - 85> TEMP3jAStator coil temp.

< 1 - 86> pressp chamber pressure

C hour 3

(b) Measured for 10 hours after starting

CV3 Crptn] C" C3 C1 C3 C"C3 CV3

h o u r

(c) Measured for 10 hours before stopping

Characteristic changes of the Type F (specimen No. F-15, 16) ball bearingsunder irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 107 -

JAERI-Tech 99-003

Reference Data Sheet / S1-DV11-3

1 0 0

3999C C 3 sea

C'C]

500CC3

sa

i

R

I

T9 | T1, 1—/

1ij

! T2 I i0 0 0

0 1.66666 3.333330 0

5 6.66666 8.33333

< 1 - 01> torqueI toruque current

1 - 02>rtatl1 02> rpmjrtatlon»I sped uolt

< 1 - 16> TEMPI^bear-ing No. i

< 1 - 04> TEMP2« bearing No.2

< 1 - 05> TEMP3_.stator coil temp.

<: 1 - 06> pressn chamber pressure

18

(b) Measured for 10 hours after starting

C hour

2 3000 500rui - -

100

300C3

500C C 3

80

60 •

20 . -

1i

,T1_..._..

C C J C" C 3

I•!

R i

1 1I pi T3

TZ !

CB C 3

..

" — • — — — • • • -

CV3

..............

0 0 0 0 0 0157.5 159.166 160.833 162.5 164.166 165.833 167.5 c h o u r 3

(c) Measured for 10 hours before stopping

Characteristic changes of the Type F (specimen No. F-3, 4) ball bearingsunder non-irradiation in vacuum.I, torque current; R, rotation speed; Tl, T2, bearing temperature; P, ultimate pressure.

- 108 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics)Component Reduction gearbox (Harmonic Drive™)

1 Sheet No. 1 S1-DV12

Classification Commercial product1. Major Specifications

- Supplier : Harmonic Drive Systems Inc.- Type : CS-8-5O-1U-SP- Reduction ratio : 1/50 - Rated torque : 15 kgf-cm Rated input rotation speed : 3,500 rpm- Momentary allowable torque : 27 kgf-cm - Allowable input rotation speed : 6,000 rpm- Dimensions : 33 mm in dia. x 76 mm in length - Weight: 125 gf- Materials : Housing (Al alloy), Flex spline (Ni-Cr-Mo steel), Circular spline (carbon steel),

Wave generator (carbon steel)- Tested lubricant (grease) : SK-2 (standard type), GK-1 (radiation hard type)

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.1 xlO6

Temperature | Ambient Humidity | Ambient Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Characteristics change of the Harmonic Drives- Starting torque : Before & After irradiation- Lost motion : Before & After irradiation- Loadless running torque : Before & After irradiation- Efficiency : Before & After irradiation

(2) Characteristics change of the grease- Viscosity : Before & After irradiation- Molecular weight: Before & After irradiation- Free acid : Before & After irradiation

4. Accumulation Doses 30 MGy (SK-2 used)40MGy (GK-1 used)

5. Acceptance Doses 30 MGy (SK-2 used)25 MGy (GK-1 used)

6. Results

(1) Characteristics change of the Harmonic Drives depend on the characteristics change of the greaselubricants.

(2) Starting torque of the Harmonic drives, which was used the GK-1 grease, increased rapidly afteraccumulation dose of 25 MGy. This is due to the hardening of the grease.

(3) The SK-2 grease leaked through the housing just after irradiation beginning. This is caused by thesoftening of the grease contrary to the GK-1 grease.

7. Reference Data Sheet

- S1-DV12-1 Overall structure and mechanism of Harmonic Drive- S1-DV12-2 Overview and layout of Harmonic Drives in the irradiation cell.- S1-DV12-3 Characteristics change of the Harmonic Drives after irradiation.

- 109 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV12-1

Following shafts

Flex spline

V

AWave generator 7

Circular spline

^Driving shaft

Driving shaft

Flex spline

Circular spline

Wave generator

Section A-A

Overall structure and mechanism of Harmonic Drive (reduction gearbox).

- 110 -

JAERI-Tech 99-003

Reference Data Sheet /S1-DV12-2

•* 7 B 5 •-• v

Overview and layout of Harmonic Drives in the irradiation cell.

- I l l -

- Loadless running torque (GK-1)- Loadless running torque (SK-2)

0 5 10 15 20 25 30 35 40Accumlated dose (MGy)

Relation of accumlated dose and loadless runnung torque

6-Lost motion (GK-1)- Lost motion (SK-2)

co

5 10 15 20 25 30Accumlated dose (MGy)

Relation of accumlated dose and lost motion

2

600

500 h

400 -

300 -i

200

100

—o— Starting torque (GK-1)—&— Starting torque (SK-2)

ii

|

i

" • * • •

O

= ^ = 1

! /

7!/1

/......a...

355 10 15 20 25 30Accumlated dose (MGy)

Relation of accumlated dose and starting torque

40

100

80

g 60

40

20

—o— Efficiency (GK-1)—a— Efficiency (SK-2)

"I i

^1

iit

!

i

1

__o

• * - ^ .

^ ^

°o

_

>

5 10 15 20 25 30 35 40Accumlated dose (MGy)

Relation of accumlated dose and efficiency

vn

I

o3-

OO

1nsnn

t/3

ftft

C/5

Characteristic changes of the Harmonic Drives as a function of accumulation dose.hJ

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) [Sheet No. | S1-SS01Component Potentiometer (Wirewound type)Classification Commercial product1. Major Specifications

- Supplier : Midori Sokki Co.- Type : CP-4M- Input resistance : 1 kQ - Rotational range : 350 deg. - Linearity : ± 0.5 % - Torque : 8 gfcm- Dimensions : 36.5 mm in out. dia. x 20.5 mm in length - Weight: 50 gf- Main materials : Al alloy, Cu, Ni, Fe

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 936 xTemperature | Ambient 1 Humidity | Ambient | Atmosphere j Air

3. Measurement Items & Acquisition Period

(1) Amplitude of eyerie rotational motion : Under irradiation

4. Accumulation Doses | 14.3 MGy | 5. Acceptance Doses | 0.14 MGy

6. Results

(1) Amplitude was drifted after 15 hr from the beginning of the irradiation and after 58 hr, theamplitude became zero level.

(2) This trouble is assumed that it is due to a damage of actuator in the potentiometer.

7. Reference Data Sheet

- Sl-SSOl-1 Layout of some kinds of position sensors in the irradiation cell.- S1-SS01-2 Outline of the wirewound type potentio meter.- S1-SS01-3 Irradiation test results of the wirewound type potentiometer.

- 113 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS01-1

' _+Jr+ i

Ja.

/ S H

Encoder

±J = i

(a) Layout of some kinds of position sensors in the irradiation cell.Dimensions, 750 mm in width x 1,400 mm in length.

(b) Five kinds of position sensors (from upper to bottom : wirewound typepotentiometer, magnet resistive potentiometer, differential transformer, resolver andoptical fiber used encoder) were driven by five DC servo motors which were shieldedby lead blocks.

- 114 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS01-2

5±i 20.5

2.5

2

lf±l

R23

Overview of the wirewound type potentiometer.

- 115 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS01-3

Ampiitude(Max.:V)--•--Amplitude(Min.:V)

0 3 108 6 108 9 108 1.2109 1.5109

Total dose(rad)

(a) Amplitude changes of the wirewound type potentiometer as a function of doses.

(b) Overview of the potentiometer after irradiation of 14.3 MGy.Flexible joint was eroded and rotation axis stuck.

- 116 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) [Sheet No. j S1-SS02Component Potentiometer (Wirewound type)Classification Commercial product

1. Major Specifications

- Supplier : Midori Sokki Co.- Type : CP-4M- Input resistance : 1 kfl - Rotational range : 350 deg. - Linearity : ± 0.5 % - Torque : 8 gfcm- Dimensions : 36.5 mm in out. dia. x 20.5 mm in length - Weight: 50 gf- Main materials : Al alloy, Cu, Ni, Fe

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.01x10^

Temperature | Ambient | Humidity j Ambient | Atmosphere | N23. Measurement Items & Acquisition Period

(1) Output voltage of eyerie rotational motion : Under irradiation

4. Accumulation Doses J8722 MGy | 5. Acceptance Doses | 3 MGy

6. Results

(1) Five potentiometers were tested simultaneously. Appearance of output voltage change and durabletime are different in every potentiometer.

(2) Rotational trouble was not occured in this test. It is assumed that the reason is caused by testing innitrogen gas environment.

7. Reference Data Sheet

- S1-SS02-1 Layout of five potentiometers set in the test chamber.- S1-SS02-2 Irradiation test results of the potentiometers

- 117 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SS02-1

Layout of the five potentiometers in the nitrogen gas environmental test chamber.Upper, the potentiometers were set in the chamber; middle, five potentiometers weredriven simultaneously; bottom, overview of the potentiometers after irradiation of 8.22MGy.

- 118 -

to

I

. . . . . . . ,• I I I I I I ! I

J 4 " . . . | i i * t i

Output voltage changes of the five potentiometers under irradiation.

re

3

©

fta

cn

i

too

OO00

onVis

JAERX-Tech 99-003

Subtask Name Subtask 1 (Robotics) | Sheet No. | S1-SS03

Component Potentiometer (Magnet resistive type)Classification Commercial product1. Major Specifications

- Supplier : Midori Sokki Co.- Type : CP-2URBM- Resistance : 15 kQ - Rotational range : ± 45 deg. - Linearity : ± 1.5% F.S.- Torque : 5 gfcm- Dimensions : 30 mm in out. dia. x 100 mm in length - Weight: 50 gf- Main materials : Al alloy, Cu, Ni, Fe

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 936 x 105

Temperature | Ambient [ Humidity | Ambient | Atmosphere [ Air3. Measurement Items & Acquisition Period

(1) Amplitude of eyerie rotational motion : Under irradiation

4. Accumulation Doses j 13.5 MGy | 5. Acceptance Poses | 2.5 MGy

6. Results

(1) Amplitude was drifted after 290 hr from the beginning of the irradiation and after 456 hr, theamplitude became zero level.

(2) This trouble is assumed that it is due to a damage of actuator in the potentiometer.

7. Reference Data Sheet

- S1-SS03-1 Outline of the magnet resistive type potentiometer.- S1-SS03-2 Irradiation test results of the magnet resistive type potentiometer.

- 120 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SS03-1

50

r

22

3-M4

Overview of the magnet resistive type potentiometer.

- 121 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SS03-2

CDX3

<

• Ampiitude(Max.:V)»--Amplitude(Min.:V)

!

310 6 108 9 108 1.2109 1.5109

Total dose(rad)

(a) Amplitude changes of the magnet resistive type potentiometeras a function of doses.

(b) Overview of the potentiometer after irradiation of 13. 5 MGy.Surface of the plug connector was eroded and rotation axis stuck.

- 122 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) | Sheet No. | S1-SS04Component Differential transformer (LVDT)Classification Commercial product

1. Major Specifications

- Supplier : Shinko Electronics Co.- Type : ST-2- Exciting frequency : 300 kHz - Exciting voltage : 1 Vrms - Output : ± 4 V- Input impedance : 200 Q - Linearity range : 10 mm ± 1 %- Dimensions : 12 mm in out. dia. x 87 mm in length - Weight: 100 gf- Majot materials : Brass, Epoxy resin, SS

2. Irradiation ConditionsFacility 1 No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 9.76 x 105

Temperature | Ambient | Humidity Ambient Atmosphere j Air

3. Measurement Items & Acquisition Period

(1) Amplitude of eyerie linear motion : Under irradiation

4. Accumulation Poses 14.9 MGy | 5. Acceptance Doses |~0.2MGy

6. Results

(1) Amplitude reduced gradually and the level drastically changed after 247 hr.(2) It is assumed that the trouble is caused by a damage of linear motion mechanism of the LVDT.

7. Reference Data Sheet

- S1-SS04-1 Overview of the LVDT and test results.

- 123 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS04-1

Amplitude(Max.:V)--•--AmpIitude(Min.:V)

310 6 108 9 108 1.2109 1.5109

Total dose(rad)

(a) Amplitude changes of the differential transformer as a function of doses.

(b) Overview of the differential transformer after irradiation of 14.9 MGy.Surface of the body was eroded and sliding axis stuck, in addition lead wires broke.

- 124 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) 1 Sheet No. j S1-SS05Component Differential transformer (LVDT)Classification Commercial product1. Major Specifications

- Supplier : Shinko Electronics Co.- Type : ST-2- Exciting frequency : 300 kHz - Exciting voltage : 1 Vrms - Output : ± 4 V- Input impedance : 200 Q - Linearity range : 10 mm ± 1 %- Dimensions : 12 mm in out. dia. x 87 mm in length - Weight: 100 gf- Main materials : Brass, Epoxy resin, SS

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 9.71 xlO5

Temperature | Ambient | Humidity [ Ambient [Atmosphere | N2

3. Measurement Items & Acquisition Period

(1) Output voltage of eyerie linear motion : Under irradiation

4. Accumulation Doses I 4.5 MGy | 5. Acceptance Doses | 4.3 MGy

6. Results

(1) Three LVDTs were irradiated simultaneously in the nitrogen gas environmental test chamber.(2) Output voltage could not be detected after irradiation of 4.5 MGy.

7. Reference Data Sheet

- S1-SS05-1 Overview of the LVDT set in the test chamber.- S1-SS05-2 Influene of accumulated dose on output voltage of LVDT

- 125 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS05-1

(a) Three differential transformers were driven simultaneously.

(b) The differential transformers were set in the nitrogen gasenvironmental test chamber.

- 126

6.00 I—

pre-irad.

4.30x10* rad4.47x10'rad

to

I-6.00

6.00 I—

4.00 -

2.00 —'

0.00

-2.00

-4.00 -

-6.00

— pre-lrad.

— 4.30x10* rad

•--4.47x10'rad

" I""" !

pra-trad.4.30x10'rad

"4.47x10' rad10.0 I—

50

i- 9CDOXT

tooow

Output voltage changes of the differential transformer under irradiation.ann

SB

eno

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) 1 Sheet No. 1 S1-SS06Component Synchronous resolverClassification Commercial product

1. Major Specifications

- Supplier : Minebea Co.-Type:23BCX-9007-A01- Frequency : 50/60 Hz - Primary voltage : 100 V - Secondary voltage : 90 V- Input impedance : 700 Q,- Dimensions : 57 mm in out. dia. x 127 mm in length

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) I l . l l xTemperature \ Ambient | Humidity | Ambient | Atmosphere j Air

3. Measurement Items & Acquisition Period

(1) Amplitude of eyerie rotational motion : Under irradiation

4. Accumulation Poses | 17.7 MGy | 5. Acceptance Doses j 1.8 MGy

6. Results

(1) The level of amplitude is not constant after irradiation of 1.8 MGy.(2) The signal showed zero level at accumulation dose of 1.7 MGy. It is assumed that the reason is

caused by a damage of rotational mechanism of the resolver.

7. Reference Data Sheet

- S1-SS06-1 Overview of the synchronus resolver and test results.

- 128 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS06-1

•o

"Q.

<

•Amplitude(Max.:V)•-•--Amplitude(Min.:V)

0 5 108 1 109 1.5109

Tota! Dose(rad)10'

(a) Amplitude changes of the synchronous resolver as a function of doses.

(b) Overview of the synchronous resolver after irradiation of 17.7 MGy.Surface of the plug connector was eroded and rotation axis stuck.

- 129 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) | Sheet No. | S1-SSO7

Component Rotary encoderClassification Commercial product1. Major Specifications

- Supplier : Tamagawa Seiki Co.- Type : E6B-CWZ3E- Resolving capability : 10 ppr - Output form : Voltage - Responsive frequency : 30 kHz- Rising time : 1 usec - Torque : 10 gfcm- Dimensions : 40 mm in out. dia. x 39 mm in length

2. Irradiation ConditionsFacility 1 No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) in x

Temperature j Ambient | Humidity | Ambient [ Atmosphere 1 Air

3. Measurement Items & Acquisition Period

(1) Output voltage of eyerie rotational motion : Under irradiation

4. Accumulation Doses | 0.01 MGy | 5. Acceptance Doses j Impossible

6. Results

(1) The encoder was troubled just after gamma irradiation.(2) This encoder is probably impossible to use under a dose rate of 106 R/h.

7. Reference Data Sheet

- S1-SS07-1 Overview of the rotary encoder.

- 130 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SSO7-1

8 J «

—15-45 -39--70

3-M3

Overview of the standard type rotary encoder.

- 131 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) _ | Sheet No. | S1-SS08Component Optical fiber used rotary encoderClassification Newly-developed productI. Major Specifications

- Supplier : Micro Servo Inc.- Type : Prototype- Resolving capability : 10 ppr - Output form : Voltage- Dimensions : 50 mm in out. dia. x 83 mm in length

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.04 xlO6

Temperature | Ambient | Humidity | Ambient | Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Output voltage of eyerie rotational motion : Under irradiation

4. Accumulation Doses 16.4 MGy | 5. Acceptance Doses | over 16.4 MGy

6. Results

(1) Output voltage is not change at accumulation dose of 16.4 MGy.

7. Reference Data Sheet

- S1-SS08-1 Overview of the optical fiber used rotary encoder.

- 132

JAERI-Tech 99-003

Reference Data Sheet /S1-SS08-1

82.962.9

33.5 ... 23.4 , . S

_ r

g-5. i.

Overview of the optical fiber used prototype rotary encoder.

- 133 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) Sheet No. S1-SS09Component Optical fiber used rotary encoderClassification Commercial product

1. Major Specifications

- Supplier : Fujikura Co.- Type : FMI-30-2000 (Incrimental type)- Output : Three phases (A, B, Z) - Type of fiber : Graded-index (non-rad. hard)- Resolving power : 2,000 ppr - Rotation speed : 6,000 rpm (max.)- Response frequency : 100 kHz - Transmission distance : 100 m (max.)- Allowable temperature : -10 ~ 60 °C- Dimensions : 40 mm in out. dia. x 42 mm in length - Weight: 50 gf

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.01 xlO6

Temperature | Ambient | Humidity | Ambient [ Atmosphere | N23. Measurement Items & Acquisition Period

(1) Amplitude of eyerie rotational motion : Under irradiation

4. Accumulation Doses j 1.4 MGy [ 5. Acceptance Doses | 1.1 MGy

6. Results

(1) The output signal could not be detected after irradiation in ranging from 1.1 MGy to 1.2 MGy.

7. Reference Data Sheet

- S1-SS09-1 Overview of the optical fiber used rotary encoder and the test stand.- S1-SS09-2 Irradiation test results of the optical fiber used rotary encoder.

- 134 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SS09-1

fl _ l ,

\\ MO fl ft^f

Overview of the optical fiber used commercial type rotary encoder andtest stand for irradiation test.

- 135 -

I

CO

I

iraa 10MS/I t M «— ; • ; • • • • ! • • • •

chl

: : :

' " ; " " ! : •

. . . . . . . . . . . . . . . . ^ . . . .

H 1

phase

phase B...

After 30 min

cni Tv X Su. ' CR1 7 180mV

'oil <v""aa""iii "tr'ipi ar y"<ow

After 4 hours

After 115 hours 56 min After 118 hours 36 min

Change of wave form on A and B phase

Total irradiation time : 137hrs 42min

Total dose : 1.39x1 d rad

.....Ir~

• o

i

Phase APhase B

I j

| |

0:00 32:30 65:00 97:30 130:00

Irradiation time [hrs:min]

Change of amplitude on A and B phase

us

nan

©

CDO

COi

ooCO

Irradiation test results of the optical fiber used commercial type rotary encoder.

e

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) j Sheet No. f S1-SS10Component Strain gauge (Foil type)Classification Commercial productI. Major Specifications

- Supplier : Kyowa Electronic Instruments Co.- Type : KFU (foil type)- Allowable temperature : -196 ~ 350 °C- Gauge element: Ni - Cr - Base : Polyimide / A12O3 - Adhesive : Polyimide / A12O3- Lead wire : Ni coated Cu / Polumer

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5 xlO6

Temperature | Ambient | Humidity | Ambient | Atmosphere | Air3. Measurement Items & Acquisition Period

(1) Strain signal at constant stress : Under irradiation(2) Insulation resistance of lead wire : After irradiation(3) Electric characteristics of gauge : After irradiation(4) Cyclic loading test : After irradiation

4. Accumulation Doses I 127 MGy | 5. Acceptance Doses | 20 MGy

6. Results

(1) The strain signal could not be detected at 24.5 MGy.(2) Insulation resistance of the lead wire after irradiation of 80 MGy showed as follows:

- Before irradiation : Infinity - After irradiation : 0.2 ~ 12 Mfi(3) Insulation resistance between the lead wire and gauge base after irradiation of 80 MGy showed as

follows:- Before irradiation : 1.6 x 105 MQ - After irradiation : 1.2 x 104 Mfi

(4) Repeatability of strain value in the cyclic loading test is good and the hysteresis showed lessthan 2 %.

7. Reference Data Sheet

- S1-SS10-1 Outline of the foil type gauge and test results.- S1-SS10-2 Details of the foil type gauge before and after irradiation.- S1-SS10-3 Datails of the lead wire.- S1-SS10-4 Cycric loading test results between irradiated gauge and non-irradiated gauge.

- 137 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS10-1

Qause.

(Irradiated area) (Un-lrradlated area)

Leads

(a) Overview of the foil type strain gauge.

1500 rn-J

1400

CO

1300'

12001

1100

1000

KFU Type

- e — SG1

— B — SG2

—•— SG3

- * — SG4

'1 """1 """I 1 1 1 """1 "1

,.ii J J . ,..J ...,J J . ..-J .,-J . ,..J . ...J . ..,.J . ...J .....

10* 10 s 108 101 0

Accumulated exposure dose

10,12

(b) Strain changes of the foil type strain gaugesas a function of accumulation dose.

- 138

JAERI-Tech 99-003

Reference Data Sheet /S1-SS10-2

Resistance element

Overview of the foil type strain gauge before (bottom) andafter (upper) irradiation of 80 MGy.

- 139 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS10-3

(a) Details of the lead wires before (bottom) and after (upper) irradiation of 80 MGy.A part of insulator was peeled off and discolored after irradiation.

Organic polymer

Conductor

Inorganic polymer

(b) Cross section of the lead wire.

Crack

Damaged parts Organic polymer

iInorganic polymer

„ * '-a., —."•*« * ' ' , ,—

" . - " ^ ' ' -, - . /I

Conductor

(c) Outline of a part of the damaged lead wire.

- 140 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SS10-4

1000

2

o o

0

Re

>

3ion

L

g

A A

/f

age

j

/

i

2

\//

f

////\gag<

r—(/f

33

'2. *—§

40.

i

0 2.5

Displacement

(mm)

Cyclic loading test results between irradiated and non-irradiated foil type gauges.Number of cycle, 700; gage 2, irradiated gauge; gage 3, non-irradiated gauge.

- 141

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) [ Sheet No. j S1-SS11Component Strain gauge (Capsule type)Classification Commercial product1. Major Specifications

- Supplier : Kyowa Electronic Instruments Co.- Type : KHC (capsule type)- Allowable temperature : -196 ~ 550 °C- Gauge element: Ni - Cr - V - Base : SS316 - Adhesive : Point welding- Lead wire : MI cable (wires covered with MgO insulator and SS tube)

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5 x 106

Temperature Ambient j Humidity j Ambient Atmosphere j Air3. Measurement Items & Acquisition Period

(1) Strain signal at constant stress : Under irradiation

4. Accumulation Doses 1 127 MGy j 5. Acceptance Doses | over 20 MGy

6. Results

(1) Troubles were not recognized both of the gauge and lead wires after irradiation of 24.5 MGy.(2) Change of the strain around doses of 20 MGy is assumed due to release the welding stress

of the gauge.

7. Reference Data Sheet

- S1-SS11-1 Outline of the capsule type gauge and test results.

- 142 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS11-1

Gau

Aotlve element

/ rDuirmy a lament

Bred MeO

Fiante

Adhaslva of caremlos group

Mineral Insulation oable

SiIner solder.

Gauge

\ .Welding

Pol>urethane,

I ding

(IrrtdlataO area)

(Un-lrradlated area)

(a) Overall structure of the capsule type strain gauge.

1000

900

csc'S3 8ooV

700

11 1 • 1

KHC type

—©—SG5

—a—SG6

— » — SG7

—*—SG8

I 1 n " n ?TT™T ~ " " " i i

r..li ,...J i i i i i i ...-J i ..—i i i6 0 0 o u 104 ioe io8 io10 10

Accumulated exposure dose M)

(b) Strain changes of the capsule type strain gaugesas a function of accumulation dose.

,12

- 143 -

JAERI-Tech 99-003

SubtaskName Subtask 1 (Robotics) 1 Sheet No. | S1-SS12Component Distance sensor (Laser sensor)Classification Commercial product1. Major Specifications

- Supplier : Keyence Co.- Type : LB-01- Detectable range : ± 40 mm from standard point of 100 mm- Laser : 780 nm / 3 mW / semiconductor type - Laser spot : 1 x 2 mm - Linearity : 1.6 %- Resolution capability : 10, 40, 180 urn (depends on the response time)- Output voltage : ± 4 V (0.1 V/mm) - Main materials : Zn, Semiconductor (PSD)- Dimensions : 46 x45.5 x 17 mm - Weight: 165 gf

2. Irradiation ConditionsFacility | No. 2 Cell (Co-60 building), No. 1 Cell (RI building) in Takasaki-JAERIRadiation Source | Co-60 | Dose Rate (R/hr) | 1.57xlO6, 1.08x10^, 98.5 R/hTemperature | Ambient j Humidity | Ambient | Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Output voltage at constant distance between sensor and object: Under irradiation

4. Accumulation Doses 1 0.077 MGy (max.) | 5. Acceptance Doses | TBD6. Results

(1) Three laser sensors were irradiated under three different dose rate (1.57xl06, 1.08xl04, 98.5 R/h).(2) Radiation hardness on each sensor is estimated as follows:

- Dose rate : 1.57 x 106 R/h - Radiation hardness : 0.0048 MGy- Dose rate- Dose rate

1.08 x 104 R/h - Radiation hardness : 0.0009 MGy98.5 R/h - Radiation hardness : 0.0012 MGy

7. Reference Data Sheet

- S1-SS12-1 Layout of the laer sensors in the irradiation cell.- S1-SS12-2 Irradiation test results of the laser sensors.

- 144 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SS12-1

(a) Laser type distance sensor and amplifier.

(b) Layout of the distance sensors in the irradiation cell.Cylindrical radiation source is centered in the irradiation cell.

145 -

>

1.0

0.50

0.0

-0.50

-1.0

-1.51080:00

| Dose rale : 9.85x10 R/h

- ' ~ -— — -

JJ\k

3.00

2.00

„ 1.00>

Mo.oo

-1.00

-2.00

Dose rate : 1.08x10E4 R/h

11

1—

8.00

6.00

4.00

2.00

0.00

o nn

Dose rate : 1.57x10E6 R/h |

JJjy

1200:00 1320:00

Time [hrs:min]

Irradiation test result of the distance sensorDose rate :9.85x10R/hAtmosphere : ambient airTemperature : ambient air

400:00 440:00 480.00 520:00 560:00 600:00

Integrated time [mirvsec]

Irradiation test result of the distance sensorDose rate : 1.08x10* R/hAtmosphere : ambient airTemperature : ambient air

800 900 1000 1100 1200 1300 1400

Integrated time [sec]

Irradiation test result of the distance sensorDose rate : 1.57 x 106 R/hAtmosphere : ambient airTemperature : ambient air

oo

oo

Comparison of output voltage changes under different exposure dose rate.Left, 98.5 R/h; center, 1.08 x 10* R/h; right, 1.57 x 105 R/h.

n9-insr>nOas3"3"

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) 1 Sheet No. 1 S1-SS13Component Distance sensor (Optical fiber used laser sensor)Classification Newly-developed product1. Major Specifications

- Supplier : Akita Electric Co.- Type : Prototype- Detectable range : 800 ~ 1,200 mm- Laser : 685 nm / 7 mW / semiconductor type- Response time : 1 sec- Dimensions : 50H x 330W x 294D mm

- Accuracy of measurement: 1 mm

2. Irradiation ConditionsFacility Planned (No. 2 Cell in the Co-60 building in Takasaki-JAERI)Radiation Source Co-60 Dose Rate (R/hr)Temperature | Ambient Humidity | Ambient Atmosphere | Air3. Measurement Items & Acquisition Period

(1) The sensor is adjusting for irradiation test.(2) The test will be staeted from middle of 1998.

4. Accumulation Doses 5. Acceptance Doses6. Results

(1) Measurement accuracy was tested before irradiation.(2) The followings showed the relation between nominal value and measured value.

- Nominal value- Nominal value- Nominal value

800 mm - Measured value : 800.5 mm1,000 mm - Measured value : 1000.0 mm1,200 mm - Measured value : 1200.0 mm

7. Reference Data Sheet

- S1-SS13-1 Overall configuration of the optical fiber used laser distance sensor.- S1-SS13-2 Measurement accuracy test results before irradiation.

- 147 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SS13-J

Amplifier & control unit

Sensor head

Receivewindow

Optical fiber& electric cable

Analogoutput

RS-232CPanel

Transmissionwindow

Object

(a) Overall structure of the optical fiber used prototype laser sensor.

(b) Overview of the optical fiber used prototype laser sensor.

- 148 -

to

I

1200

1100

1000

900

800900 1000 1100

Nominal value [mm]

Change of the sensor output

1200

0.6 I

0.4 -

0.2 "

-0.2

•0.4

1000.0 1000.2 1000.4 1000.6 1000.8

Sensing point [mm]

1001.0

0.8

0.4

•=• 0.2

I

-0.2

-0.4

0.6

0.4 -

"E" 0.2

1

i "N

_ ^ _

i1

•- - —V

•: ]

I11

8O0.0 800.2 800.4 800.6 800.8

Sensing point [mm]

801.0

-0.2

-0.41100.0 1100.2 1100.4 1100.6 1100.8 1101.0

Sensing point [mm]

0.8

0.4

•c- 0.2

-0.2

•0.4

M . . .

r ij

JL900.0 900.2 900.4 900.6 900.8

Sensing point [mm]

901.0

0.6

0.4

•c" 0.2

•0.2 -

•0.41200.0 1200.2 1200.4 1200.6 1200.8 1201.0

Sensing point [mm]

Measurement accuracy test results of the prototype laser sensor before irradiation.

PSOt—(

I

(DO

Ioo

9•nnann

CA

n

C/3

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) | Sheet No. | S1-SS14Component Proximity sensor (Magnetic type)Classification Commercial product1. Major Specifications

- Supplier : Izumi Electric Co.-Type:4FRl-6-J- Detectable distance : 10 mm (depends on the dimensions of object)- Detectable standard object size : 76 x25 x6t mm- Detectable materials : Fe, Ni, Co and these alloy - Response time : 1 msec

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.8xlO5R/h

Temperature | Ambient | Humidity j Ambient j Atmosphere [ Air

3. Measurement Items & Acquisition Period

(1) Repeatability of object width : Under irradiation

4. Accumulation Doses | 26 MGy | 5. Acceptance Doses 1 over 26 MGy

6. Results

(1) Measured object width after irradiation of 26 MGy was detected about 50 mm compared with40 mm before irradiation, but this difference does not matter in practical application.

7. Reference Data Sheet

- S1-SS14-1 Overall configuration of the proximity sensor and test stand.- S1-SS14-2 Measured object width changes before and after irradiation.

- 150 -

Filler

Lead switch

(a) Overall structure of the magnet type proximity sensor. (b) Overview of the test stand for the proximity sensors.A steel plate (33 mm in width) passes in front of the sensors.

n3

as

srn

>

o

IDI

Oo

JAERI-Tech 99-003

Reference Data Sheet / S1-SS14-2

wid

thur

ed o

bjec

t1e

asi

80.0

70.0

60.0

50.0

40.0

30.0

20.0

10.0 -

0.00

» 9 I

o c

;

I • 4

) 0 (

i ji !

o Sensor / Before irrad. 1 1• Sensor/26MGy 9 !

i • •

D O <

i

* » <

j o C

i

> . » i

i i

2 4 6 8 10

Repeated number per measuring

Comparison of detectable capability changes of the magnet type proximity sensorsbefore and after irradiation of 26 MGy.A steel plate (33 mm in width) passes in front of the sensors.

- 152 -

JAERI-Tech 99-003

Subtask Name Subtask 1 (Robotics) I Sheet No. | S1-SS15

Component Accelerometer (Servo rebalance type)Classification Commercial product

1. Major Specifications

- Supplier : Japan Aerial Electronic Co.- Type : JA-5GA55- Detectable range : ± 2 G - Non-linearity : ± 0.15 % - Resolution capability : < 1 x 10"4

- Nominal value : 0.3036 mA/(m/s2) at 25 °C - Allowable temperature - 40 ~ 150 °C- Main materials : Al alloy, Magnet, Iron- Dimensions : 25.4 mm in dia. x 21.6 mm in length - Weight: 50 gf

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.57xlO6R/hTemperature | Ambient Humidity | Ambient Atmosphere | N23. Measurement Items & Acquisition Period

(1) Output voltage at constant inclination angle of 0° and 30° : Under irradiation

4. Accumulation Doses |2.16MGy I 5. Acceptance Doses | 0.7 MGy6. Results

(1) Two accelerometers were set at inclination angles of 0° and 30°, respectively.(2) These accelerometers were irradiated simultaneously and there is no difference between 0° and 30°(3) As a result of post-irradiation test, a power circuit of amplifier in both accelerometers was

damaged by gamma irradiation.

7. Reference Data Sheet

- S1-SS15-1 Overall of the accelerometers and test stand in the irradiation cell.- SI-SSI 5-2 Output voltage changs of the accelerometers under irradiation.

- 153 -

JAERI-Tech 99-003

Reference Data Sheet /S1-SS15-1

(a) Accelerometers were tested in 0-deg. and30-deg. inclination positions.

(b) The accelerometers were set in thenitrogen gas environmental chamber.

(c) Overview of the chamber in the irradiation cell.

- 154 -

JAERI-Tech 99-003

Reference Data Sheet / S1-SS15-2

22.45±.13(,884±.005)

29.5 MAX

2.54±.13(.100±.005)

12.2 MAX(.48 MAX7

(1.16 MAX)

(a) Overview of accelerometer.

10.0

8.00

6.00

£ 4.00o

2.00

0.00

-2.00

• Reference• - -Odeg .A---30 deg.

0:00 30:00 60:00 90:00 120:00 150:00

Integrated time [hrs:min]

(b) Output voltage changes of the accelerometers under irradiation.Output voltage of the 0-deg. and 30-deg. position sensors begunto rise after 44 hr.

- 155 -

This is a blank page.

JAERI-Tech 99-003

Appendix 5Summary, Data sheets, Tables and Figures

[ Subtask-2 : Viewing Systems ]

- 157 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test ResultsSubtask-2 (Viewing systems)

SheetNo.

S2-CS01

S2-CS02

S2-OP01

S2-OP02

S2-OP03

S2-OP04

S2-OP05

S2-OP06

S2-OP07

S2-OP08

S2-OP09

S2-OP10

S2-OP11

S2-OP12

Component

CCD camera

CCD camera withimproved CCU

Rad. hardnessperiscope(1st stage)Rad. hardnessperiscope(2nd stage)Reflecting mirror(Cr coated onSS304)Reflecting mirror(Al coated onSS304)Reflecting mirror(Pt coated onSS304)Glass (CeO2contained alkalinebarium glass)Glass (CeO2contained leadglass)Glass(OH dopedsynthetic quartz)Adhesive(denaturationpolyester resin)Adhesive(thermosettingepoxy resin)Anti-reflectingcoating film

Halogen lamp

Cla-ssifi-cation1

2

3

3

3

3

3

1

1

1

1

1

3

1

•Dose rate (R/h)•Atmosphere•Temperature•1x102,3,4•Air• Ambient temp.• lx lO 3 . 4•Air• Ambient temp.• 1 x 106•Air• Ambient temp.• 1 x 106

•Air• Ambient temp.• 1.5 xlO6

•Air• Ambient temp.• 1.5 xlO6

•Air• Ambient temp.• 1.5 xlO6

•Air• Ambient temp.• 1 x 106•Air• Ambient temp.• 1x106•Air• Ambient temp.• l x l O 6

•Air• Ambient temp.• 1 x 106

•Air• Ambient temp.• 1 x 106

•Air• Ambient temp.• 1.55 xlO6

•Air• Ambient temp.• 1.06 xlO6

•Air• Ambient temp.

Accum.dose

(MGy)3.2x10-3

3 x 10-3

20

102

120

120

120

205

205

205

55

55

11.3

100

Accep.doses(MGy)

1.5x10-3

over3 x 10-3

over 20

over 102

120

TBD

50

over 205

over 205

over 205

under 3

under 3

over 11.3

dependsratedlifetime

Mainresults or issues

Sensitivity of camerahead decreased inproportion to doses.The improved CCUis clear effective.

Reflecting mirrorsdegraded.

The 1 st stage perisco-pe was modified.

Finishing of the SSsubstrate is difficult.

Surface erosion likeislands occurred.

Surface erosionoccurred extremely.

Transmittance loss isvery small.

(ditto)

Transmittance loss isnearly zero in rangingof visible-wavelength.• Clouds were formed.• Discolored.

• Discolored.• Adhesive strengthwas lost at 55MGy.

There is not change.

Rated life time is 500hr.

(contd.)

- 158 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-2 (Viewing systems)

SheetNo.

S2-IF01

S2-IF02

S2-IF03

Component

Image fiber(OH doped)

Image fiber(fluorine doped)

In-situ treatmentto image fiber byH2gas

Cla-ssifi-cation1

1

3

•Dose rate (R/h)•Atmosphere•Temperature•9 .3xl0 5

•Air• Ambient temp^•4.95xlO5

•Air• Ambient temp.• 1.46 xlO6

• H2 gas• Ambient temp.

Accum.dose

(MGy)28.3

3.4

100

Accep.doses(MGy)

3.1

3

100

Mainresults or issues

Recovery treatmentwas carried out to thedamaged fiber.Precoating materialwas broken.

The treatment is cleareffective.

- Classification : 1, Commercial product; 2, Modified product; 3, Newly-developed product- Accepetance doses : tentative value.

- 159 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) | Sheet No. | S2-CS01Component CCD camera systemClassification Commercial product1. Major Specifications

- Supplier : Toshiba Co.- Type : IK-C40 (color type)- CCD : 1/2 inch ccd image sensor (768H x494V)- Resolution : 460 TV lines (horizontal) x 350 TV lines (vertical)- Illuminance : 200 Ix (standard), 15 be (minimum) - S/N : over 46 dB- Objective lens : JK-L12 (standard type)

2. Irradiation ConditionsFacility | No. 1 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) | 1 x 104, 1 x 103, 1 xlO2

Temperature [Ambient | Humidity | Ambient 1 Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Image observation : Under irradiation(2) Transmittance of the objective lens : Before and after irradiation(3) Electric characteristics of the camera head : Before and after irradiation

4. Accumulation Doses 1 0.0032 MGy ] 5. Acceptance Doses | 0.0015 ~ 0.002 MGy

6. Results

(1) Sensitivity of the camera head decreased rapidly at accumulation dose of 2 kGy.(2) Dark current depends on the dose rate.(3) The dark current increses at low dose rate irradiation compared with high dose irradaition.

7. Reference Data Sheet

- S2-CS01-1 Experimental setup of the CCD camera systems.- S2-CS01-2 External view of the CCD camera heads and observation system configuration.- S2-CS01-3 Characteristics change of the CCD camera heads.

- 160 -

C3(~\E02R/h)

Camera control unit

Quadrant picture unit

LJK-S44CSCT0SHIBA)

Wave form monitorf

LB0-5865(LEADER)

KV-6220CTOSHIBA)

\ Time lapse video recorder v. o, . ... ..x c *\ Shielding wall

P21CS04CT0SHIBA)

X

Radiation source(Co-60)/180*X220H

Test chart

Larnj.

C2(~1E03R/h)

Color monitor

C1 .C2.C3: CCDcamera with lensCCD came ra/IK-C40/T0SHIBALens/JK-L 12/TOSHIBA

133nS1n3nn

S

s-n

so

CDO

oo

Experimental setup of the CCD camera systems (standard type).

j

nC/3

JAERI-Tech 99-003

Reference Data Sheet /S2-CS01-2

(a) Three CCD camera heads with objective lenses were irradiatedunder dose rate of 1.01E04, 1.09E03 and 1.02E02 R/h, respectively.

(b) Inside the irradiation ceil. Cylindrical radiation source is installedin the center of the cell.

(c) Image observation and wave shape monitor system* were setoutside the cell.* color monitor, wave shape monitor, CCU, quadrant picture unit,time laps video monitor.

- 162 -

00

I

140

120

100

I§ ao

l 60

40

20

0

0 500 1000 1500 2000 2500 3000 3500

Accumulated Exposure Dose (Qy)

(a) Relation between dark current and gamma dose rate.* to make allowance for deterioration of amplifier.

—O--C1-S«W» - ^—ffl- - C1-1000 • -Q- - (2-1250 - -X- - SMI—BB- -C1-321O

80

60

20

400 450 500 550 600 650 700

Wavelength (ran)

(c) Transmittance changes of objective lenses irradiatedunder dose rate of 1.01E04, 1.O9EO3 and 1.02E02 R/h,respectively.

h -C1-SM

- - C1-WPN

-40

-42

-48

-48

- C2-WPN - - A - - C3-WPM

12

10

a

6

500 1000 1500 2000 2500 3000 3500

Accumulated Exposure Dose (Gy)

(b) Change of S/N and white pattern noise on CCD cameraas a function of accumulation dose. Symbol : black, S/N;white, white pattern noise.

I -

— 200

120

20

0 1000 2000 3000 4000

Accumulated Exposure Doss (Gy)

(d) Video output changes of the CCD camera headsas a function of accumulation dose.

an

nn

Vi

n

—3

O

toCD

IOOCO

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) | Sheet No. | S2-CS02

Component CCD camera system with improved CCUClassification Modified productI. Major Specifications

- Supplier : Toshiba Co.- Type : IK-C40 (color type)- CCD : 1/2 inch ccd image sensor (768H x 494V)- Resolution : 460 TV lines (horizontal) x 350 TV lines (vertical)- Illuminance : 200 Ix (standard), 15 Ix (minimum) - S/N : over 46 dB- Objective lens : Prototype (radiation hard lens)

- Functions of the improved CCU (camera control unit)• Sensitivity correction : CCD output gain can be increased up to 5 times.• OB (optical black) level correction : Deviated level of ± 60 % (max.) can be adjust to the original

level of 7.5%.• Shading correction : Deviated OB wave level of 50 % can be corrected to the original straight level.

2. Irradiation ConditionsFacility 1 No. 1 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1 x 104 1 x 103

Temperature 1 Ambient | Humidity jAmbient | Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Image observation : Under irradiation(2) Transmittance of the objective lens : Before and after irradiation(3) Electric characteristics of the camera head : Before and after irradiation

4. Accumulation Doses j 0.003 MGy | 5. Acceptance Doses | over 0.003 MGy

6. Results

(1) The improved CCU is effective to regain the damaged signals by gamma irradiation.(2) The radiation hardness of the CCD camera system was improved from 1.5 kGy to over 3 kGy

by the improved CCU.

7. Reference Data Sheet

- S2-CS02-1 External view of fabricated modified CCD camera system and block diagram of the CCU.- S2-CS02-2 Profiles of damaged signals and applied correction wave forms.- S2-CS02-3 Electric characteristics change of the CCD camera heads as a function of doses.- S2-CS02-4 Video signals and objective lens transmittance changes as a function of doses.- S2-CS02-5 Correction effect of the color bar chart on the CCD camera performance.- S2-CS02-6 Correction effect of the white boad chart on the CCD camera performance.- S2-CS02-7 Correction effect of the pedestal level signals on the CCD camera performance.- S2-CS02-8 Total effect of a combination of the CCD camera after irradiation of 3 kGy.

- 164 -

JAERI-Tech 99-003

Reference Data Sheet / S2-CS02-1

Main specifications of teseted CCD cameras and irradiation conditions.Tested CameraNo.Cl

C2

C3

C4

Camera HeadSpec.IK-C40, 1/2 in.,Colortl

»

M

Type of CCU

Modified

it

Objective lens

JK-L12f: 12 mmii

ti

Rad-hard typef: 12. 5 mm

Dose Rate(R/h)

I x 104

1.06 x 104

1.15 x 103

1.15 x 103

Atmosphere

Air /R.T.

M

II

(a) External view of the fabricated modified CCD camera system.

Camera Head Camera Control Unit (CCU)

LensCCD

Noise Reduction &Color Separation

i_Timing

Generator

Correction Unit

SignalProcessing

Encoder

JLSignalGenerator

Power

Shading Correction SOptical Black Correction

Sensitivity Correction

.TV

•+12

(b) Block diagram of the modified CCU (camera control unit).

- 165

JAERI-Tech 99-003

Reference Data Sheet / S2-CS02-2

(a) Profiles of optical black level wave forms after irradiation.

t ^ v - i , .

' - t . rrsr— Ptt -sr^

(b) Typical examples of wave profiles generated in the correction circuits, deviated wavesshown in the above are corrected by these wave forms.

Functions of the new correction circuits- Sensitivity :

increase the CCD output gain over a factor of five.- Optical black (OB) level (output signal level of shaded CCD sensor) correction :

adjustment off-set of the level from ± 60 % to the original level of ± 7.5 %.- Shading correction :

correction the OB wave profile deviated by irradiation into the original straight profile.

- 166 -

JAERI-Tech 99-003

Reference Data Sheet / S2-CS02-3

500 1000 1500 2000

Doses (Gy)

2500 3000

1000 1500 2000 2500

Doses (Gy)

3000

E,0)O)

Ita

o>

utp

i

oQ

oO

400

350

300

250

200

150

100

50

0

*

-

^ k *

N

i

\ \

\

\ *

\

\

%

\ '\

>

r

s\

\>. \\

- -

* i

500 1000 1500 2000 2500

Doses (Gy)

3000

C1 camera : 100 Gy/h

C2 camera : 106 Gy/h

C3 camera : 11.5 Gy/h

C4 camera : 11.5 Gy/h

Electric characteristic changes of the CCD camera heads as a function of doses.Upper, dark voltage; middle, saturation voltage; bottom, CCD output voltage.

- 167 -

JAERI-Tech 99-003

Reference Data Sheet / S2-CS02-4

100

C1 :100 Gy/h

C2 MOtGy/h

C3 : 11.50*11

C4 MI^Qy/h

500 1000 1500 2000

Accumulated Dose (Gy)

2500

(a) Changes of video output signals measured by the VTR(video tape recorder) as a function of accumulation dose.

d) 80o

II 60

a 40

3ID

I 20 I—

V

XH_ci—D—C1 :100 Gy/h " f ' i

— • — C2 :106 Gy/h | Q2

• C3 :11.5Gym

— !7—04 :11.5Gy/h1

C3

C4

•

•

•

•

0 500 1000 1500 2000 2500 3000

Accumulated Dose (Gy)

(b) Transmittance changes of the objective lenses equippedto each CCD camera at wave length of 540 nm.

- 168 -

JAERI-Tech 99-003

Reference Data Sheet /S2-CS02-5

Beforeirradiation

1,567 Gy

1,970 Gy

2,470 Gy

C1 camera (Dose rate : 100 Gy/h)

Before correction After correction

Sensitivity gain x 6

Sensitivity gain x 7.6

Sensitivity gain x 21

Effect of correction on CCD camera (Cl) performance on the color bar chartirradiation up to 2.5 kGy under dose rate of 1 x 104 R/h.

- 169 -

JAERI-Tech 99-003

Reference Data Sheet / S2-CS02-6

BeforeIrradiation

1,567 Gy

1,970 Gy

2,470 Gy

C1 camera (Dose rate : 100 Gy/h)

Before correction After correction

Sensitivity gain x 6

Sensitivity gain x 7.6

Sensitivity gain x 2 !

Effect of correction on CCD camera (Cl) performance on the white board chartirradiation up to 2.5 kGy under dose rate of 1 x 104 R/h.

- 170 -

JAERI-Tech 99-003

Reference Data Sheet / S2-CS02-7

Beforeirradiation

1,567 Gy

l,970Gy

2,470 Gy

C1 camera (Dose rate : 100 Gy/h)

Before correction

Wave form monitor gain x 5

Wave form monitor gain x 5

Wave form monitor gain x 5

Wave form monitor gain x 5

After correction

WFMG x 1, Sensitivity gain x 6

WFNJGxi, Sensitivity gain x 7.6

WFMG x 1, Sensitivity gain x 21

Effect of correction on CCD camera (Cl) performance on the pedestal level signalsirradiation up to 2.5 kGy under dose rate of 1 x 104 R/h.

171 -

Before correction

Image

|<S

'•6

I

I

Wave form at VIDEO out

After correction

Images

f*",-

Wave form at VIDEO out

so

I

o

ooco

Effect of correction on CCD camera (C4) performance on the gray/color scaleirradiation up to 3 kGy under dose rate of 1.15 x 103 R/h.

5reS1

3an

cn3*n

o(AOK

ee

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) [ Sheet No. [ S2-OP01Component Radiation hard periscope (the first stage)Classification Newly-developed product

1. Major Specifications

- Supplier: Mitsubishi Electric Co., MINOLTA Co., Nihon Electric Glass Co.- Type : Refracting optical periscope- Optical composition : Objective lens x 1, Relay lens x 4, Reflecting mirror x 4,

Eyepiece : CCD camera- Materials of lenses : CeO2 contained alkaline barium glass (N-l), CeO2 contained lead glass (L-2),

OH doped synthetic quartz (P-l 10)- Materials of mirrors : CrN coated on sysnthetic quartz, Al coated on synthetic quartz- Material of periscope body : Almite treated Al alloy- Dimensions : 80 mm in dia. x 6 m in length

2. Irradiation ConditionsFacility | No. 2 Cell in the CO-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1 x I06

Temperature Ambient 1 Humidity | Ambient j Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Image observation : Just after irradiation stopping(2) Dismantling inspections (transmittance change of the lenses, reflectance change of the mirrors)

After irradiation

4. Accumulation Doses j 20 MGy | 5. Acceptance Doses over20MGy

6. Results

(1) The images gradually became dark by degradation of reflacting mirrors.(2) Accumulation dose limits of the observation capability and resolution capability are estimated

about 20 MGy and 12 MGy at a illuminance of 8,500 Ix, respectively.(3) The obsrvation capability means to observe a total image and the resolution capability means to

discriminate a chart of black and white lines with a wide of 2/3 mm.(4) This periscope was improved and tested as the second stage periscope with zooming mechanism.

7. Reference Data Sheet

- S2-OP01-1 Layout of the radiation hard periscope and observation system inside and outside theirradiation cell.

- S2-OP01-2 Comparison of the images taken by the standard and radition hard type periscopes.

- 173 -

JAERI-Tech 99-003

Reference Data Sheet /S2-OP01-1

(a) The first stage rad-hard periscope and lighting systeminside the irradiation cell, appearance from the back.

(b) The first stage rad-hard periscope and lighting systeminside the irradiation cell, appearance from the front.

(c) Image observation and recording systems were installedoutside the irradiation cell.

- 174 -

vv,

4 *•? s * ; ^• * .

?„ * 7 . J f t S ;

53"

CD33

o

ooCO

Comparison of images taken by the standard and the first stageradiation hard type periscopes.

VI

6o

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) [ Sheet No. 1 S2-OP02

Component Radiation hard periscope (the second stage)Classification Newly-developed product1. Major Specifications

- Supplier : MINOLTA Co.- Type : Refracting optical periscope- Optical composition : Objective lens x 1, Relay lens x 4, Reflecting mirror x 4,

Eyepiece : CCD camera, Zooming mechanism, Auto focusing mechanism- Materials of lenses : CeO2 contained alkaline barium glass (N-l), CeO2 contained lead glass (L-2),

OH doped synthetic quartz (P-110)- Materials of mirrors : Al coated on synthetic quartz- Material of periscope body : Almite treated Al alloy- Dimensions : 80 mm in dia. x 6 m in length

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1 x 106

Temperature Ambient Humidity | Ambient Atmosphere [ Air

3. Measurement Items & Acquisition Period

(1) Image observation : Just after irradiation stopping(2) Dismantling inspections (transmittance change of the lenses, reflectance change of the mirrors)

After irradiation

4. Accumulation Doses | 102 MGy | 5. Acceptance Doses | over 102 MGy

6. Results

(1) The images gradually became dark by degradation of reflacting mirrors.(2) Two overhauls (repair the mirrors, surface cleaning of the relay lenses) were carried out at

accumulation dose of 26.5 MGy and 87.4 MGy, respectively.(3) Reflectance of the mirrors was decreased in the ranging from 10 % to 30 % but the transmittance

changes of the lenses were very small.(4) The zooming mechanism troubled at accumulation dose of 1.2 MGy by degradation of lubricant.

7. Reference Data Sheet

- S2-OP02-1 Overview and layout of the periscope inside and outside the irradiation cell.- S2-OP02-2 Change of images taken by the radiation hard periscope after the second overhaul.- S2-OP02-3 Surface conditions of the relay lenses after irradiation of 87.4 MGy.- S2-OP02-4 Measured transmittance loss of the relay lenses after irradiation of 26.5 MGy

and 87.4 MGy.- S2-OP02-5 Surface conditions of the mirrors after irradiation of 87.4 MGy.- S2-OP02-6 Measured reflectance loss of the mirors after irradiation of 87.4 MGy.

- 176 -

JAERI-Tech 99-003

Reference Data Sheet / S2-OP02-1

(a) Overview of the second stage rad-hard periscope inside and outside the irradiation eel!.Left, the periscope and lighting system (appearance from the back); center, appearance of theperiscope from the front; right, CCD camera with auto-focusing mechanism was equipped tothe eyepiece.

ffJIIMH WIMM

4-—f—M- *

\ -..,

(b) Layout of the second stage radiation hard periscope.

- 177 -

JAERI-Tech 99-003

Reference Data Sheet /S2-GP02-2

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13

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- 178 -

Relay lens 5-6 Relay lens 4-5

stur IOIS !-io

d .0

Relay lens 9-10

81IC3IT6

Surface conditions of the relay lensesassembled in the 6-m long rad. hardperiscope after irradiation of 87.4 MGy.

Objective lens

I H O . * )

Relay lens 1-2

Surface conditions of the relay lenses in the periscope after irradiation of 87.4 MGy.

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Measured transmittance loss of the relay lenses after irradiation of 26.5 MGy and 87.4 MGy.

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No.2 Mirror

No.1 Mirror

£Q

No.4 Mirror

i?3

Surface conditions of the mirrors in the periscope after irradiation of 87.4 MGy.

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- 381 -

Reflectance (%)

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Reflectance (%)

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£00-66

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) | Sheet No. j S2-OPQ3Component Reflecting mirror (CrN coated on SS304)Classification Newly-developed product1. Major Specifications

- Supplier : Japan Vacuum Metallurgy Co.- Type : Chrome nitride coated on stainless steel (SS304)- Coating film thickness and reflectance : 1 um - 62.2 %, 3 um - 61.5 %, 5 um - 60.9 %- Dimensions : 50 mm x 50 mm x 2 mm t

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5 xlO6

Temperature | Ambient | Humidity jAmbient | Atmosphere Air

3. Measurement Items & Acquisition Period

(1) Reflectance : Before and after irradiation(2) Surface conditions : Before and after irradiation

4. Accumulation Doses 120 MGy 1 5. Acceptance Doses j over 120 MGy

6. Results

(1) Reflectance and surface conditions were not changed up to accumulation dose of 120 MGy.(2) However, it is very difficult to finish the SS substrate to the desired flat surface.

7. Reference Data Sheet

- S2-OP03-1 Surface condition changes of the mirrors before and after irradiation.- S2-OP03-2 Reflectance changes of the mirrors before and after irradiation.

- 183 -

JAERX-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) j Sheet No. | S2-OP04Component Reflecting mirror (Al coated on SS3O4)Classification Newly-developed product1. Major Specifications

- Supplier : Japan Vacuum Metallurgy Co.- Type : Aluminum coated on stainless steel (SS304)- Coating film thickness and reflectance : 0.1 urn - 87.4 %, 0.3 um - 86.6 %- Dimensions : 50 mm x 50 mm x 2 mm t

2. Irradiation ConditionsFacility 1 No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5 xlO6

Temperature | Ambient j Humidity | Ambient | Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Reflectance : Before and after irradiation(2) Surface conditions : Before and after irradiation

4. Accumulation Doses | 120 MGy 5. Acceptance Doses | TBD

6. Results

(1) Reflectance was not changed up to accumulation dose of 120 MGy.(2) The surface of the mirror began to erroded from lower doses.(3) However, it is very difficult to finish the SS substrate to the desired flat surface.(4) The reflectance is higher compared with the CrN and Pt mirrirs.

7. Reference Data Sheet

- S2-OP03-1 Surface condition changes of the mirrors before and after irradiation.- S2-OP03-2 Reflectance changes of the mirrors before and after irradiation.

- 184 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) j Sheet No. | S2-OP05

Component Reflecting mirror (Pt coated on SS304)Classification Newly-developed product

1. Major Specifications

- Supplier : Japan Vacuum Metallurgy Co.- Type : Platinum coated on stainless steel (SS304)- Coating film thickness and reflectance : 0.2 urn - 76.8 %- Dimensions : 50 mm x 50 mm x 2 mm t

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5 xlO6

Temperature | Ambient ] Humidity | Ambient | Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Reflectance : Before and after irradiation(2) Surface conditions : Before and after irradiation

4. Accumulation Doses | 120 MGy j 5. Acceptance Doses 50 MGy

6. Results

(1) Reflectance was drastically decreased at the point of 50 MGy.(2) The surface condition of the mirror is the worst compared with the CrN and Pt mirrors.(3) Finishing of the SS substrate of the mirror is difficult the same as the CrN and Al mirrors.

7. Reference Data Sheet

- S2-OP03-1 Surface condition changes of the mirrors before and after irradiation.- S2-OP03-2 Reflectance changes of the mirrors before and after irradiation.

- 185 -

JAERI-Tech 99-003

Reference Data Sheet / S2-OP03-1

Surface condition changes of the reflecting mirrors before and after irradiation of 120 MGy.Left, after irradiation; right, before irradiation.

- 186 -

JAERI-Tech 99-003

Reference Data Sheet /S2-OP03-2

100

0OcBo0

DC

50 -

0 20 40 60 80 100 120

Dose (MGy)

Reflectance changes of the mirrors as a function of accumulation dose.C-1-1, CrN coating mirror (coating film thickness 1 \im);

C-3-1, CrN coating mirror (coating film thickness 3 \im);

C-5-1, CrN coating mirror (coating film thickness 5 fim);

A-1 -1, Ai coating mirror (coating film thickness 0.1 urn),

A-3-1, Al coating mirror (coating film thickness 0.3 |xm);

P-2-1, Pt coating mirror (coating film thickness 0.2 \im).

- 187 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) I Sheet No. 1 S2-OP06Component Glass materials (CeO2 contained alkaline barium glass)Classification Commercial product1. Major Specifications

- Supplier : Japan Electric Glass Co.- Type : Cerium oxide contained alkaline barium glass (N-l)- Composition : SiO2-BaO-R2O-CeO2 (R : Na, K)- Amount of CeO2 : 1.8 wt %- Specific gravity : 2.65 - Refractive index (Na - D line): 1.52- Limits of coloration and dielectric destruction by gamma ray : 106 R/h, 106 R/h- Thermal expansion coefficient (30-380 °C) : 98 x 10-7/°C- Poisson's ratio : 0.230- Dimensions (specimen): 30 mm x 15 mm x 10 mm

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) i x l O 6

Temperature 1 Ambient Humidity | Ambient Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Transmittance : Before and after irradiation(2) Coloration : Before and after irradiation

4. Accumulation Doses 205 MGy 1 5. Acceptance Doses | over 205 MGy

6. Results

(1) Amount of transmittance loss is 3.5 % at wavelength of 550 nm after irradiation of 205 MGy.(2) Coloration by gamma ray is not recognized after irradiation of 205 MGy.

7. Reference Data Sheet

- S2-OP06-1 Appearances of the glasses after irradiation.- S2-OP06-2 Transmittance changes of glasses as a function of accumulation dose.

~ 188 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) Sheet No. S2-OP07Component Glass materials (CeO2 contained lead glass)Classification Commercial product1. Major Specifications

- Supplier : Japan Electric Glass Co.- Type : Cerium oxide contained lead glass (L-2)- Composition : SiO2-PbO-R2O-CeO2 (R : Na, K)- Amount of CeO2 and PbO : 1.5 wt %, 37 wt %- Specific gravity : 3.36 - Refractive index (Na - D line): 1.60- Limits of coloration and dielectric destruction by gamma ray : 106 R/h, 104 R/h- Thermal expansion coefficient (30 - 380 °C) : 112 x 10-7/°C- Poisson's ratio : 0.237- Dimensions (specimen): 30 mm x 15 mm x 10 mm

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1 xlO6

Temperature | Ambient Humidity | Ambient Atmosphere j Air3. Measurement Items & Acquisition Period

(1) Transmittance : Before and after irradiation(2) Coloration : Before and after irradiation

4. Accumulation Doses | 205 MGy 5. Acceptance Doses over 205 MGy6. Results

(1) Amount of transmittance loss is 2.5 % at wavelength of 550 nm after irradiation of 205 MGy.(2) Coloration by gamma ray is not recognized after irradiation of 205 MGy.

7. Reference Data Sheet

- S2-OP06-1 Appearances of the glasses after irradiation.- S2-OP06-2 Transmittance changes of glasses as a function of accumulation dose.

- 189 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) | Sheet No. | S2-OP08Component Glass materials (Synthetic quartz)Classification Commercial product1. Major Specifications

- Supplier : Shinetsu Quartz Co.- Type : Hydroxyl group (OH) doped synthetic quartz (P-110)- Composition : SiO2- Amount of OH : 300 ppm- Specific gravity : 2.20 - Refractive index (Na - D line) : 1.46- Softening temperature : over 1500 °C- Thermal expansion coefficient (273 - 573 °C) : 5.5 x 10"7/K- Yong's modulas : 7.1 GPa- Dielectric loss : 2 x 10"4 (1 MHz, 293 K)- Dimensions (specimen): 30 mm x 15 mm x 10 mm

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1 x 106

Temperature 1 Ambient j Humidity | Ambient | Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Transmittance : Before and after irradiation(2) Coloration : Before and after irradiation

4. Accumulation Doses | 205 MGy 5. Acceptance Doses | over 205 MGy

6. Results

(1) Amount of transmittance loss is nearly zero at wavelength of 550 nm after irradiation of 205 MGy.(2) Coloration by gamma ray is not recognized after irradiation of 205 MGy.

7. Reference Data Sheet

- S2-OP06-1 Appearances of the glasses after irradiation.- S2-OP06-2 Transmittance changes of glasses as a function of accumulation dose.

- 190 -

JAERI-Tech 99-003

Reference Data Sheet / S2-OP06-1

(a) Overview of the glasses after irradiation of 46.4 MGy.Left, CeO2 contained alkaline barium glass;right, CeO2 contained lead glass.

(b) Overview of the synthetic quartzes after irradiation of 37.2 MGy.P-l 10 type is the second from left side.

191

JAERI-Tech 99-003

Reference Data Sheet /S2-OP06-2

N—1

1—1

. 6 0

°300

500

Wa*e L e n g t h ( n i )

Nave Length (n

555 6~6~WITS Length ( m )

1 : Before irradiation2:205MGy

L—2

1 : Before irradiation2:204MGy

P—1 10

( 2 . 2 0 i l <

(7.55,10'r.dl

l l . t l i l f l i d

T o 1 : Before irradiation2:206MGy

Transmittance changes of the glasses as a function of accumulation dose.Upper, CeO2 contained alkaline barium glass; middle, CeO2 contained lead glass;bottom, OH doped (300 ppm) synthetic quartz.

- 192 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) [Sheet No. | S2-OP09Component Adhesive for lens (Denaturation polyester resin)Classification Commercial product1. Major Specifications

- Supplier:- Formation of the specimen : Two glasses were stuck by the adhesive.

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1 x 106

Temperature | Ambient | Humidity | Ambient | Atmosphere j Air

3. Measurement Items & Acquisition Period

(1) Coloration : Before and after irradiation(2) Adhesive strength capability : Before and after irradiation

4. Accumulation Doses | 55 MGy | 5. Acceptance Doses | 1 MGy

6. Results

(1) Small clouds like island and concentric clouds like the Newton's ring were formed at 3.4 MGy and7.6 MGy, respectively.

(2) The adhesive strength capability was lost at 55.5 MGy and the two glasses peeled off.(3) Color of the adhesive changed from transparency to brown.

7. Reference Data Sheet

- S2-OP09-1 Appearances of the specimen after irradiation.

- 193 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) | Sheet No. | S2-OP10Component Adhesive for lens (Thermosetting epoxy resin)Classification Commercial product1. Major Specifications

- Supplier:- Formation of the specimen : Two glasses were stuck by the adhesive.

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) MxlO6

Temperature | Ambient Humidity | Ambient Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) Coloration : Before and after irradiation(2) Adhesive strength capability : Before and after irradiation

4. Accumulation Doses j 55 MGy [ 5. Acceptance Doses | 1 MGy

6. Results

(1) The adhesive strength capability was lost at 55.5 MGy and the two glasses peeled off.(2) Color of the adhesive changed from transparency to brown.

7. Reference Data Sheet

- S2-OP09-1 Appearances of the specimen after irradiation.

- 194 -

JAERI-Tech 99-003

Reference Data Sheet / S2-OP09-1

(a) Overview of the denaturation polyester resin used glass specimen after irradiation.Left, small clouds like island were formed after irradiation of 3.38 MGy.Right, concentric clouds like the Newton's ring were formed after irradiation of 7.75 MGy.

(b) Adhesive strength capability of both adhesives was lost after irradiation of 55.5 MGyand the two glasses peeled off.Color of the adhesives changed from transparency to brown.

195 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) j Sheet No. | S2-0P11Component Anti-reflecting coating film for optical lensClassification Newly developed product

1. Major Specifications

- Supplier : MINOLTA Co.- Type : Three layers coating (SiO2, TiO2 + ZrO2, A12O3)- Formation of the specimen : The film was coated on three kinds of glasses (alkaline barium glass,

lead glass, synthetic quartz)- Film thickness : SiO2 - 85 nm, TiO2 + ZrO2 - 119 nm, Al2O3-77nm- Dimensions of the glass : 50 mm in dia. x 10 mm t- Surface reflectance of the synthetic quartz specimen : Before coating 3.7 %

After coating 0.4 %

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.55 xlO6

Temperature | Ambient Humidity [ Ambient Atmosphere | Air3. Measurement Items & Acquisition Period

(1) Surface reflectance : Before and after irradiation(2) Surface conditions : Before and after irradiation

4. Accumulation Doses | 11.3 MGy 5. Acceptance Doses j over 11.3 MGy

6. Results

(1) Surface conditions and reflectance were not changed after the irradiation of 11.3 MGy.

7. Reference Data Sheet

- S2-OP11-1 Appearances of the specimen.- S2-OP11-2 Reflectance changes before and after irradiation.

- 196 -

JAERI-Tech 99-003

Reference Data Sheet /S2-OP11-1

(a) Overview of the anti-reflecting film coated glasses.Left, CeO2 contained alkaline barium glass; center, CeO2 contained lead glass;right, synthetic quartz (P-110).

(b) The glasses were irradiated in bags made of Kapton (polyimide).

- 197 -

JAERI-Tech 99-003

Reference Data Sheet / S2-OPI1-2

P110

0

350 4ooWavelength (nm)

I f.l i 111 tffi II • i

<DU

(8 ««o H<D 'S35= S r

; i

IB' JlJiLLLX

Wavelength (nm)

Reflectance changes of the anti-reflecting film before and after irradiation of 11. 3 MGy. Upper,before irradiation (straight : not coated the film on the glasses, curve : coated the film on theglasses); middle, CeO2 contained alkaline barium glass; bottom, CeO2 contained lead glass

- 198 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) | Sheet No. 1 S2-OP12Component Halogen lampClassification Commercial product1. Major Specifications

- Supplier : Toshiba Lightec Co.-Type :JP100V500W2F- Materials : Bulb - Frost finishing quartz, Terminal - Ceramics- Applied voltage and wattage : 100 V / 500 W- Luminous flux and efficiency : 11,000 lm, 22 Im/W- Rated lifetime : 500 hr

2. Irradiation ConditionsFacility j No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 | Dose Rate (R/hr) [ 1.06 xlO6

Temperature Ambient Humidity | Ambient [ Atmosphere | Air

3. Measurement Items & Acquisition Period

- Test conditions of lampsCase 1 : Turn on under irradiationCase 2 : Turn off under irradiationCase 3 : Turn off with non irradiation (reference)

(1) Illuminance : Before and after irradiation(2) Surface conditions : Before and after irradiation

4. Accumulation Doses 100 MGy (Case 2 and3)

5. Acceptance Doses depends the ratedlifetime

6. Results

(1) Durability of the lamps depends on the rated lifetime.

7. Reference Data Sheet

- S2-OP12-1 Layout of the lamps in the irradiation cell.- S2-OP12-2 Illuminance measurement and damaged lamp.- S2-OP12-3 Illuminance changes of the halogen lamps as a fuction of doses.

- 199 -

OO

(a) Left, light on under irradiation;right, light off under irradiation.

(c) The lamps are turned on for pre-testing.

—itno

oo

soft

Oas

(b) Two halogen lamps were irradiated simultaneously.

62

JAERI-Tech 99-003

Reference Data Sheet / S2-OP12-2

(a) Distance between the lamp (right) and lux meter (left)was set 50 cm.

(b) Damaged halogen lamp.Accumulation dose, 5.65 MGy; lighting time, 494 hr.

- 201

JAERI-Tech 99-003

Reference Data Sheet /S2-OP12-3

15

ooo

CD

£ 5|

0

O : Light on/Irradi.:1st• : Light on / Irradi.:2nd<0 : Light on/Irradi. :3rdx : Light on / !rradi.:4th

+ : Light on / lrradi.:5th

A : Light off/Irradi.

M : Light off/Non Irradi.

.x..• +

I

O..H

LT, BO

m 1

•

O

M

1 10 100

Accumulated Exposure Dose (MGy)

Illuminance changes of the halogen lamps as a function of accumulation dose.

- 202 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) | Sheet No. j S2-IF01Component Image fiber (Hydroxyl group doped fiber)Classification Commercial product

1. Major Specifications

- Supplier : Fujikura Co.- Type : Radaition hard type OH doped image fiber- Number of core : 20,000- Amount of OH : 800 ppm- Field angle : 30°- Dimensions : 13 mm in dia, 12 m in length- Eyepiece : CCD camera

2. Irradiation ConditionsFacility j No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source | Co-60 Dose Rate (R/hr) | 9.3 xTemperature | Ambient | Humidity [ Ambient | Atmosphere | Air3. Measurement Items & Acquisition Period

(1) Observation capability : Under irradiation (just after the radiation source falling)(2) Two times recovery treatments were carried out to the damaged image fiber.

- The 1 st treatment conditionsAccumulation dose of the image fiber : 28.3 MGyAtmosphere : Hydrogen gas (1 atm.), Temperature : 200 °C, Processing time : 24 hr

- The 2nd treatment conditionsAccumulation dose of the image fiber : 28.3 MGy + 8.52 MGyAtmosphere : Hydrogen gas (1 atm.), Temperature : 200 °C, Processing time : 48 hr

4. Accumulation Doses [ 28.3 MGy | 5. Acceptance Doses j 3.1 MGy

6. Results

(1) Observation and resolution capability dose limits are estimated 12 MGy and 3.1 MGy,respectively.

(2) The resolution capability means to descriminate a chart of black and white lines with wide of2 and 3 mm.

(3) As a result on the 1st treatment, radiation induced loss of the damaged fiber was recoveredabout 1 dB/m at wavelength of 400 nm.

(4) The second treatment was not effective compared with the 1 st treatment.

7. Reference Data Sheet

- S2-IF01-1 Layout of the image fiber in the irradiation cell.- S2-IF01-2 Change of images as a function of accumulation dose.- S2-IF01-3 Comparison of the images before and after the 1st treatment.- S2-IF01-4 Change of radiation induced loss before and after the 1st treatment.- S2-IF01-5 Change of radiation induced loss before and after the 2nd treatment.

- 203 -

JAERI-Tech 99-003

Reference Data Sheet / S2-IF01-1

(a) The image fiber was set underthe rad-hard periscope.

(b) The distance from tip of the image fiber to bar chart is set 55 cm.

- 204 -

tooon , ;

I i ' • "

a-**

•> I

Change of images of the hydroxyl group doped image fiber as a function of doses.From left side, before irradiation (3,500 lx); 0.5 MGy (3,500 lx);3.1 MGy (3,500 lx); 12 MGy (3,500 lx).

3r>n

sr

CDO

oo

S3

JAERI-Tech 99-003

Reference Data Sheet / S2-IF01-3

(a) Before the treatment (3,500 lx)

(b) Just after the treatment (3,500 lx)

(c) 4.63 kGy (3,500 Ix)

(d) 60. lkGy (3,500 lx)

Comparison of images before and after the first recovery treatment.

206 -

JAERI-Tech 99-003

Reference Data Sheet / S2-IF01-4

m

COCO

gCDO=3

T3

g.2 1CO

DC

0

l . ... I .Before the treatment

300 400 500 600

Wave length (nm)

700 800

Radiation induced loss changes before and after the first recovery treatment.

- 207 -

JAERI-Tech 99-003

Reference Data Sheet /S2-IF01-5

2.0

0.5

Before the treatment

After the treatment

400 500 600 700

Wavelength (nm)

Radiation induced loss changes before and after the second recovery treatment.

208 -

JAERI-Tech 99-003

Subtask Name Subtask 2 (Viewing Systems) 1 Sheet No. 1 S2-IF02Component Image fiber (Fluorine doped fiber)Classification Commercial product1. Major Specifications

- Supplier : Mitsubishi Cable Co.- Type : Radaition hard type fluorine doped image fiber- Number of core : 20,000- Amount of OH : 800 ppm- Field angle : 30°- Dimensions : 8 mm in dia, 12 m in length- Eyepiece : CCD camera

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 4.95 xlO5

Temperature ) Ambient Humidity Ambient Atmosphere [ Air

3. Measurement Items & Acquisition Period

(1) Observation capability : Under irradiation (just after the radiation source falling)(2) Dismantling inspection : After irradiation

4. Accumulation Doses | 3.4 MGy 5. Acceptance Doses [ 3 MGy

6. Results

(1) Observation and resolution capability dose limits are estimated 3.1 MGy.(2) The resolution capability means to descriminate a chart of black and white lines with wide of

2 and 3 mm.(3) The image was impossible to observe at accumulation dose of 3.4 MGy because of the precoating

breakage.

7. Reference Data Sheet

- S2-IF02-1 Change of images as a function of accumulation dose.- S2-IF02-2 Appearance of the damaged precoating.- S2-IF02-3 Appearance of glass sheath after irradiation of 3.4 MGy.- S2-IF02-4 X-ray fluorescence analysis results of the glass sheath after irradiation of 3.4 MGy.

- 209 -

JAERI-Tech 99-003

Reference Data Sheet / S2-IF02-1

Change of images taken by fluorine doped image fiber as a function of doses.Images are taken in ranging from 0.152 MGy to 3.52 MGy.

- 210 -

JAERI-Tech 99-003

Reference Data Sheet /S2-IF02-2

(a) Overview of pre-coating used for fluorine doped image fiber after irradiation of 3.4 MGy.The pre-coating was discolored from transparent (bottom) to brown.

(b) The discolored pre-coating breaks easily by small compression.

- 211 -

JAERI-Tech 99-003

Reference Data Sheet / S2-IF02-3

(a) Surface of glass sheath where the color was changed from transparent to white.

(b) Details of the glass sheath surface in a magnitude of 5,000.Upper, normal part; bottom, abnormal part.

212 -

JAERI-Tech 99-003

.... Reference Data Sheet /S2-IF02-4

25 353 Aec.vol. 10.0 kU Length 184.800 mm Smoothing Yes

Linear

Seals

-23. 1.16. 264.

-137. 0.7. 170.

-251.- 2 .

CH-4 LDE1

CH-3 LIFCH-2 PETCH-1 TAP

-365.- 1 1 .

- 2 .7 6 .

- 3 .-19.

a) Normal part on the glass

38' 355! Ace.vol. 10.0 kU Length 184.800 mm Smoothing Yes

Linear

Scale

-534. - 2 .- 3 . 75.

CH-4 LDE1

CH-3 LIFCH-2 PETCH-1 TAP

-777. - 3 .-16. -19.

TOPI PPS cum PC=; C M

b) Abnormal part on the glass: fluorine was detected and it is considered thatthis element was induced from cladding layer

X-ray fluorescence analysis results of the glass sheath after irradiation of 3.4 MGy.

- 213 -

JAERI-Tech 99-003

SubtaskName Subtask 2 (Viewing Systems) [ Sheet No. | S2-IF03Component In-situ treatment to image fiber by H2 gas under gamma-ray irradiationClassification Newly-developed treatment1. Major Specifications

- Supplier of image fiber : Fujikura Co.- Type of image fiber : Cl-free & high OH-content synthetic quartz- Number of core : 500- Dimensions : 0.5 mm in dia, 10 m in length (irradiated length)- Treatment conditions:

Treating gas : Hydrogen gas, Pressure : 0.1 ~ 0.2 MPa, Flow rate : 20 cc/min,Temperature : Ambient, Processing time : Continue

- Optical composition : Image fiber, Objective lens, CCD camera (eyepiece), Halogen lamp,Spectroradiometer

2. Irradiation ConditionsFacility j No. 3 Cell in the Co-60 building in Takasaki-JAERIRadiation Source j Co-60 Dose Rate (R/hr) 1.46 x 106

Temperature | Ambient | Humidity | Ambient Atmosphere H2 gas3. Measurement Items & Acquisition Period

(1) Observation of transmitted-light from halogen lamp through the image fiber : Under irradiation(2) Measurement of irradiance from halogen lamp through the image fiber : Under irradiation

4. Accumulation Doses | 100 MGy [ 5. Acceptance Doses f 100 MGy

6. Results

(1) The in-situ treatment to image fiber was clear effective compared with no treatment.(2) In case of the no treatment, the transmitted-light was impossible to observe at accumulation dose

of 0.01 MGy.(3) In case of the in-situ treatment, the center of the image becomes gradually dark in proportion to

accumulation dose. This phenomenon is estimated that it takes a long time to diffuse hydrogen gasto the center of the image fiber.

(4) The dark point in the center of the image disappears by stopping the irradiation under hydrogengas flow.

7. Reference Data Sheet

- S2-IF03-1 Overall experimental setup for in-situ treatment to image fiber.- S2-IF03-2 Comparison of images between in-situ treatment and no treatment.- S2-IF03-3 Change of images under in-situ treatment as a function of accumulation dose.- S2-IF03-4 Annealing effect by the continuos hydrogen gas flow.- S2-IF03-5 Comparison of irradiance between the in-situ treated image fiber and and no treated

image fiber.

214 -

60Co-?' CellOutside of cell

Shielding wall

SUS tube(30m long)

ima

Bulb

a8oo

CO

Image fiber

fiberLens

Pressuregauge

CCD camera

Zooming lens

MultipurposeSpectroradiometer(MSR-7000)

Osrtotooo00

Hydrogen gas anft

Oas85

Overall experimental setup for in-situ treatment to image fiber.

in air under hydrogen

ICO

control

O.OlMGy

0.02MGy

Comparison of images between the in-situ treatment and no treatment.Dose rate, 9 xlO5 - 1.5 x 106 R/h; illuminance, 13,000 lx.

control

O.OlMGy

0.02MGyinn

n

V)

ml—iI

tDO

Oow

JAERI-Tech 99-003

Reference Data Sheet /S2-IF03-3

Ooco o

CD

oo

o

§2

fa* 2

oo

T3 '

§ Ien V)

e ^.5 ON

a?§

o£

- 217 -

00

I

Immediately after the irradiation stop(total dose: 80Mgy)

20 days after irradiation stop

Annealing effect by continuous hydrogen gas flow.Dose rate, 9 xlO5 ~ 1.5 x 106 R/h; illuminance, 13,000 Ix.

na<•»

as(/>

n

3rasoi—i

iCDO

to

ooGO

> i

3

t o

0.30

0.20

o

o

Us

0.10

Tcontrol

lOOMGy

Hydrogen1

0.02MGy

in Air

800

Wave length (nm)

1000 1200

Comparison of irradiance between the in-situ treated image fiber and no treated image fiber.Dose rate, 9 xlO5 ~ 1.5 x 106 R/h; illuminance, 13,000 lx.

29n

t/2

- 3

O

ooCO

3

This is a blank page.

JAERI-Tech 99-003

Appendix 6Summary, Data sheets, Tables and Figures

[ Subtask-3 : Common Components ]

- 221

JAERI-Tech 99-003

Summary of Gamma Irradiation Test ResultsSubtask-3 (Common components)

SheetNo.

S3-CB01

S3-CB02

S3-CB03

S3-CB04

S3-CB05

S3-WR01

S3-WR02

S3-WR03

S3-WR04

S3-WR05

S3-TC01

S3-TC02

Component

Power cable forAC servo motor

Signal cable forAC servo motor

Thermocouplecable for ACservo motorSiN fabricinsulator usedcablePolymer insulatedcoaxial cable

Ceramic insulatedwire (S/a) &Imiteted statorcoil used the wireCeramic insulatedwire (S/b) &Imiteted sensorcoil used the wirePolyimideinsulated wire(H/a-1) &Outgassing treatedwire (H/a-2)Hybrid insulationwire(H/b-l)&Outgassing tretedwire (H/b-2)Virnish insulatedwire (polyimide,polyamideimide)Polyimideinsulated T/C(H/a-1) &Outgassing treatedT/C (H/a-2)Hybrid insulationT/C(H/b-I)&Outgassing treatedT/C (H/b-2)

Cla-ssifi-

cation3

3

3

3

3

3

3

2

3

2

2

2

•Dose rate (R/h)•Atmosphere•Temperature• 7 x l 0 5

•Air• Ambi. temp• 7 x 105•Air• Ambi. temp• 7 x l 0 5

•Air• Ambi. temp•2xlO 6

• N2 gas• 250 °C•2xlO 6

• N2 gas•250°C• 1.5x106• N2 gas• 250 °C

• 1.5 xlO6

• N2 gas• 250 °C

• 1.5 xlO6

• N2 gas• 250 °C

• 1.5 xlO6

• N2 gas• 250 °C

•2xlO 6

• N2 gas• 250 °C• 1.5 xJO6

• N2 gas• 250 °C

• 1.5 xlO6

• N2 gas• 250 °C

Accum.dose

(MGy)75

75

75

100

100

47.7

47.7

47.7

47.7

100

47.7

47.7

Accep.doses

(MGy)over 75

over 75

over 75

over 100

over 100

over 47.7

over 47.7

over 47.7

over 47.7

30*,100**

over 47.7

over 47.7

Mainresults or issues

Improvement of theterminal connectionneed.(ditto)

(ditto)

Flexibility is not sogood.

Strong restitution.

Electriccharacteristics aresusceptible to thehumidity.(ditto)

Strong restitution.

Hybrid effect is notrecognized.

* : polyamideimide** : polyimide

There is not change.

Hybrid effect is notrecognized.

(contd.)

- 222 -

JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-3 (Common components)

SheetNo.

S3-CN01

S3-CN02

S3-CN03

S3-CN04

S3-CN05

S3-ID01

S3-ID02

S3-ID03

S3-ID04

S3-ID05

S3-ID06

Component

Polymer insulatedelectric connector(thermoplasticitypolyimide, PEEK)Polymer insulatedelectric connector(thermoplasticitypolyimide)Ball bearing usedelectric connector(1st stage)Ball bearing usedelectric connector(2nd stage)Ball bearing usedelectric connector(3rd stage)Vacuum gauge(capacitancemanometer)Vacuum gauge(Pirani gauge)

Vacuum gauge(ionization gauge)

Ultra-sonictransducer(perpendicularinjection type)Ultra-sonictransducer(inclined injectiontype)Ultra-sonictransducer (brazedtype probe)

Cla-ssifi-

cation2

2

3

3

3

1

1

1

1

1

1

•Dose rate (R/h)•Atmosphere•Temperature•2xlO 6

• N2 gas• 250 °C

• 1.5 xlO6

• N2 gas• 300 °C

• 1 x 106

•Air• Ambient• 1 x 106

•Air• Ambient• 1 x 106

•Air• Ambient•3 .4xl0 5

• Air / Vacum• Ambient•3 .4xl0 5

• Air / Vacum• Ambient•3 .4xl0 5

• Air / Vacum• Ambient• 1 x 106•Air• Ambient

• 1 x 106

•Air• Ambient

• 1.9 xlO6

•Air• Ambient

Accum.dose

(MGy)100

11.2

100

100

100

1.200 Gy

10.2

10.2

10

10

2.3

Accep.doses

(MGy)over 100*

over 11.2

over 100

75

25*,50**

notrecomme-ndover 10.2

over 10.2

1

0.1*, 1**

over 2.3

Mainresults or issues

* : evaluation inoxygen free condition.

(ditto)

Not handy.

Contact resistancebegan to increasefrom 75 MGy.* : 22 pins connector** : 6 pins connector

Impossible to detectthe signals after 30min.Rad. hardness cableand connector need.

(ditto)

Echo height began todecrease fromlMGy.

* : acrylic wedge** : PEI wedge

Acrylic wedge cannot use in radiationenvironment.

(contd.)

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JAERI-Tech 99-003

Summary of Gamma Irradiation Test Results (contd.)Subtask-3 (Common components)

SheetNo.

S3-OT01

S3-OT02

Component

Carbon fiberreinforced plastic(CFRP)

Elastomer gasket(EPDM : ethylen-propylen, AU :urethane)

Cla-ssifi-cation1

1

•Dose rate (R/h)•Atmosphere•Temperature• 1.4 xlO6

•Air• Ambient

•2.4x104•1.9xl0 5

• 1.57x106•Air• Ambient

Accum.dose

(MGy)50

15.7

Accep.doses(MGy)

50*,over 50**

0.9

Mainresults or issues

Accep.doses dependson the matrixmaterials.* :epoxy;** : polyimide,

: bismaleimideEPDM-gaskethardened withaccumulation dose.On the contrary, AU-gasket got softer.

- Classification : 1, Commercial product;- Acceptance doses : tentative value.

2, Modified product; 3, Newly-developed product

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JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) j Sheet No. | S3-CBO1Component Power cable for AC servo motorClassification Newly-developed product1. Major Specifications

- Supplier : Sumitomo Electric Industry Co.- Type : Celamics insulated cable- Number of wires : 3 (power cable)- Materials of conductor and electric insulator : Ni coated OFC, A12O3 (wire and jacket)- Breakdown voltage : 200 ~ 1,000 V- Critical diameter of curvature : 5 ~ 30 mm- Dimensions : Power cable, 6.5 mm in dia. x 6 m in length- Connectors : Power cable, ceramics insulated three pins connector;

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 7 x 105

Temperature | Ambient | Humidity 1 Ambient | Atmosphere | Air3. Measurement Items & Acquisition Period

(1) The cable is actually used with irradiation test of the second stage AC servo motor.

4. Accumulation Dose | 75 MGy j 5. Acceptance Doses j over 75 MGy6. Results

(1) Electric characteristics did not change after irradiation of 75 MGy.(2) Terminal processing of the cable is difficult.(3) Flexibility between the connector and cable is not good.

7. Reference Data Sheet

- S3-CB01-1 Cross section of pwer and signal cables.- S3-CB01-2 Appearance of power cable.

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JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) | Sheet No. | S3-CB02Component Signal cable for AC servo motorClassification Newly-developed product1. Major Specifications

- Supplier : Sumitomo Electric Industry Co.- Type : Celamics insulated cable- Number of wires : 7- Materials of conductor and electric insulator : Ni coated OFC, A12O3 (wire and jacket)- Breakdown voltage : 200 ~ 1,000 V- Critical diameter of curvature : 5 ~ 30 mm- Dimensions .5.15 mm in dia. x 6 m in length- Connectors : Ceramics insulated six pins connector

2. Irradiation ConditionsFacility | No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 7 x 105

Temperature j Ambient | Humidity Ambient | Atmosphere 1 Air3. Measurement Items & Acquisition Period

(1) The cable is actually used with irradiation test of the second stage AC servo motor.

4. Accumulation Dose j 75 MGy | 5. Acceptance Doses | over 75 MGy

6. Results

(1) Electric characteristics did not change after irradiation of 75 MGy.(2) Terminal processing of the cable is difficult.(3) Flexibility between the connector and cable is not good.

7. Reference Data Sheet

- S3-CB01-1 Cross section of pwer and signal cables.- S3-CB02-1 Appearance of signal cable.

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JAERI-Tech 99-003

Reference Data Sheet /S3-CB01-1

(a) Overall structure of the ceramics insulation power cablefor rad-hard AC servo motor.1, conductor (Ni coated OFC); 2, sheath (A12O3 fabric); 3, jacket (A12O3 fabric)

(b) Overall structure of the ceramics insulation signal cablefor rad-hard AC servo motor.1, conductor (Ni coated OFC); 2, sheath (AI2O3 fabric); 3, wire4, shield (SS fabric); 5, jacket (AI2O3 fabric)

- 227 -

if'

fO00

- 3CDO

IooCO

Overview of the ceramics insulation power cable for rad-hard AC servo motor.Left, controller side; center, cross section; right, motor side

nS1

"1rt3nn

3*

no

<£>

Overview of the ceramics insulation signal cable for rad-hard AC servo motor.Left, controller side; center, cross section; right, motor side 3

89

<ZJ

i

o3"IO

ooCO

o

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) 1 Sheet No. | S3-CB03Component Thermocouple cable for AC servo motorCiassification Newly-developed product1. Major Specifications

- Supplier : Sumitomo Electric Industry Co.- Type : Celamics insulated K type thermocouple cable- Number of wires : 8- Conductors : Chromel, 0.32 mm in dia. x 4; Alumel, 0.32 mm in dia. x 4- Materials of electric insulator : A12O3 (wire and jacket)- Breakdown voltage : 200 ~ 1,000 V- Critical diameter of curvature : 5 ~ 30 mm- Dimensions : 6.5 mm in dia. x 6 m in length- Connectors : Ceramics insulated eight pins connector

2. Irradiation ConditionsFacility No. 2 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 7 x l 0 5

Temperature^! Ambient Humidity | Ambient [Atmosphere | Air

3. Measurement Items & Acquisition Period

(1) The cable is actually used with irradiation test of the second stage AC servo motor.

4. Accumulation Dose 75 MGy 5. Acceptance Doses | over 75 MGy

6. Results

(1) Electric characteristics did not change after irradiation of 75 MGy.(2) Terminal processing of the cable is difficult.(3) Flexibility between the connector and cable is not good.

7. Reference Data Sheet

- S3-CBO3-1 Overview and cross section of thermocouple cables.

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JAERI-Tech 99-003

Reference Data Sheet /S3-CB03-1

1-2

Overall structure of the ceramics insulation thermocouple cablefor rad-hard AC servo motor.1-1, 1-2, chromel and alumel; 2, sheath (A12O3 fabric); 3, jacket (A12O3 fabric)

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JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) 1 Sheet No. | S3-CB04Component Silicon nitride (SiN) fabric used cableClassification Newly-developed product1. Major Specifications

- Supplier : Hitachi Cable Co.- Type : Silicon nitride (SiN) fabric insulator used cable- Number of wires : 2- Conductors : Ni coated Cu (2.64 mm in dia. x 2)- Materials of electric insulator : Polyimide tape, Glass/Mica tape, SiN tape, Glass fabric,

Glass tape, SS fabric- Insulation resistance : > 10 MO (at AC 400 V)- Withstanding voltage : AC 1,500 V(l min)- Dimensions : 13.2 mm in thickness x 300 mm in length- Directions for use : Power cable

2. Irradiation ConditionsFacility No. 3 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 2xlO6

Temperature 250 °C Humidity j Ambient j Atmosphere N2 gas

3. Measurement Items & Acquisition Period

(1) BDV (break down viltage): After irradiation(2) Insulation resistance : After irradiation

4. Accumulation Dose | 100 MGy I 5. Acceptance Doses | over 100 MGy

6. Results

(1) At the measurement after irradiation of 10 MGy, BDV decreased from 9 kV to 3 kV in spite ofincreasing of insulation resistance. The reasons were not clear.

(2) After that, insulation resistance and BDV did not change up to irradiation of 100 MGy.

7. Reference Data Sheet

- S3-CB04-1 Cross section of SiN fabric insulation cables.- S3-CB04-2 Electric characteristic changes of SiN fabric insulation cable as a function of doses.- S3-CB04-3 Appearance changes of SiN fabric insulation cable as a function of doses.

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JAERI-Tech 99-003

Reference Data Sheet /S3-CB04-1

Conductor

Nl c o a t i n g

P o I y I m I de t a P e

GI ass/Mi ca t aPe

taPe

^ x G l a s s fabric

G l a s s taPe

S U S fabric

Overall structure of the SiN fabric insulation cable.

- 233 -

JAERI-Tech 99-003

Reference Data Sheet / S3-CB04-2

10s

Cable for power supplyConductor d a . : 2.64 mm x 2 cores

uco1m

cJO

(0

103

10s

10

SiN :SM«er Mute

• SiN]

!

1

i

<

20 40 60 80Accumulated Exposure Dose (MlGy)

100

(a) Insulation resistance change of the SiN fabric insulation cableas a function of doses.

10

> 8

a)en5 6o>

I 4a

Cable lor power supplyConductor d ia . : 2.64 mm x 2 cores S i N : SiN fabric insulator

>

•

•

• SiN |1

•

i

•

20 40 60 80Accumulated Exposure Dose (MGy)

100

(b) Breakdown voltage change of the SiN fabric insulation cableas a function of doses.

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JAERI-Tech 99-003

Reference Data Sheet / S3-CB04-3

Before irradiation

10MGy

25!WGy

50MGy

75MGy

100MGy

Appearance changes of the SiN fabric insulation cables irradiated undertemperature of 250 °C in nitrogen gas environments.

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JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Tsheet No. | S3-CB05Component Polymer insulated coaxial cableClassification Newly-developed product1. Major Specifications

- Supplier : Showa Cable Co.- Type : Polyimide and PEEK (poly-ether-ether-ketone) insulators used cable-Number of wires : 1- Conductors : Ni coated Cu (0.16 mm in dia. x 2)- Materials of electric insulator : Polyimide (first layer), SS fabric (shield), PEEK (jacket)- BDV (breakdown voltage): > 10 kV- Tensile strength : > 50 MPa- Dimensions : 1 mm in diameter- Directions for use : Signal cable

2. Irradiation ConditionsFacility | No. 3 Cell in the CO-60 building in Takasaki-JAERIRadiation Source Co-60 | Dose Rate (R/hr) j 2 x 106

Temperature j 250 °C | Humidity | Ambient | Atmosphere | N2 gas3. Measurement Items & Acquisition Period

(1) BDV (break down viltage): After irradiation(2) Tensile strength : After irradiation

4. Accumulation Dose | lOOMGy | 5. Acceptance Doses | over 100 MGy

6. Results

(1) BDV decreased gradually in proportion to accumulation dose, but this change do notinfluence to practical use.

(2) Tensile strength increased slightly up to irradiation of 20 MGy, after that the strengthdecreased gradually.

7. Reference Data Sheet

- S3-CB05-1 Overview and strcture of the coaxial cable.- S3-CB05-2 BDV and tensile strength changes of the coaxial cable.

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JAERI-Tech 99-003

Reference Data Sheet / S3-CB05-1

Internal conductor External conductor (Sealed)

/

=< k\\\\\\t

e>insulator ( pdyimkfc: 0.22mm)

Overview and structure of the coaxial cable.

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JAERI-Tech 99-003

Reference Data Sheet / S3-CB05-2

180

20 40 60Dose (MGy)

80 100

(a) Tensile strength changes of jacket material (PEEK) of the coaxial cableas a function of doses. The specimen was peeled from irradiated cable.

00

20

C

16[

12

8

4

• i '

O

250 °C

-

i

i • i • i •

23 X.

o~~ ' —

^ D—•

-

1 . 1 , 1 .

20 40 60 80Dose (MGy)

100

(b) Breakdown voltage changes of insulator (polyimide) of the coaxial cableas a function of doses. The specimen was peeled from irradiated cable.

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JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) I Sheet No. | S3-WR01

Component Ceramics insulated electric Wire (S/a) & Imitation stator coil made use of Wire (S/a)Classification Newly-developed product1. Major Specifications

- Supplier : Sumitomo Electric Industry Co.- Type : Wire (S/a) (Ceramics (SiO2) insulated wire)- Conductors : Ni coated Cu (0.592 mm in diameter)- Materials of electric insulator : Silicon oxide (SiO2)- BDV (breakdown voltage): 100 ~ 500 V- Tensile strength : 20 ~ 30 MPa- Outter diameter of wire : 0.792 mm - Critical diameter of curvature : 10 ~ 30 mm

- Material of imitated stator core : Permalloy- Number of coil: 70 turn- Material of binder: Inorganic binder- Dimensions of imitation stator coil core : 60'mm in length x 62 mm in width x20 mm in thickness

2. Irradiation ConditionsFacility No. 3 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) Tl.5xl06

Temperature 1 250 °C Humidity | Ambient Atmosphere [ N2 gas

3. Measurement Items & Acquisition Period

- Wire (S/a)(1) Insulation capability : After irradiation(2) BDV (break down viltage) : After irradiation(3) Flexibility : After irradiation(4) Abrasion capability : After irradiation- Imitated stator ciol(1) Insulation capability : After irradiation(2) BDV (break down viltage) : After irradiation

4. Accumulation Dose | 47.7 MGy I 5. Acceptance Doses 1 over 47.7 MGy

6. Results

(1) Insulation capability and BDV did not change.(2) Flexibility decreased slightly and abrasion capability began to decrese from irradiation of 10 MGy.(3) In case of the imitated coil, insulation capability did not change but BDV decreased gradually from

just after irradiation starting.

7. Reference Data Sheet

- S3-WR01-1 Overview and cross section of the Wire (S/a) and the imitation stator coil made use ofthe Wire (S/a).

- S3-WR01-2 Electric characteristic changes of the Wires ((S/a), (S/b)) and the imitation coils(motor stator coil, sensor coil).

- S3-WR01-3 Mechanical characteristic changes of the Wires ((S/a), (S/b)) and the imitation coils(motor stator coil, sensor coil).

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JAERI-Tech 99-003

Reference Data Sheet / S3-WR01-1

[Sectional plan of wire]

(a) Overall structure and micro graph (x 400) of the Wire (S/a).1, conductor; 2, Ni coating; 3, SiO2 insulator

Mold inorganic binder into coil

(b) Overview of the imitation stator coil made use of the Wire (S/a).Dimensions : length, 60 mm; width, 62 mm, thickness, 20 mm

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JAERI-Tech 99-003

Reference Data Sheet / S3-WR01-2

1

1

1

^ 1

g,

I '8 >S i

\>z i

i

i

i

i

i

OOE+14

00E+I3

00E+12

0OE+U

OOE+10

OOE+09

OOE+08

.OOE+07

.OOE+06

.OOE+05

.00E+O4

.00E+03

.OOE+02

.OOE+01

.OOE+00

- • - . Wlre-<S/b)

Statoreo«/wire-(S/a)

"* *" Sensor coil / wlre(S/b)

1

10 IS

Accumulated dose (MGy)

20 25

(a) Insulation capability changes of the wires and coils as a function of doses.

1.00E+03

6.00E+02

° 4.OOE+02

2.OOE+02

O.OOE+00

.20E+03 1

_ » . Wire-(S/a)

- • > Wire-<S/b)

Stetor coil / wire-(S/a)

^ ^ Sensor coil / wlre(Srt>)

10 15

Accumulated dose (MGy)

20 25

(b) Breakdown voltage changes of the wires and coils as a function of doses.

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JAERI-Tech 99-003

Reference Data Sheet /S3-WR01-3

12.0

s

"8

tv

1o11

TO,

&

Ibil

10.0

8.0

6.0

4.0

2.0

0.0

\

\

\

•

1

-— Wlre-(S/a)

- • " Wlre-(S/b)

— —

/ ^

10 15 20

Accumulated dose (MGy)

25

(a) Flexibility changes of the wires as a function of doses.

4.00E+03

3.5OE+O3

3.00E+03

32.50E+03

§.g 2.00E+03

§2 1-50E+03

1.00E+03

5.00E+02

O.OOE+00

"

" ^

* - Wlre-<S/a)

• " Wke-<ab)

10 15

Accumulated dose (MGy)

20 25

(b) Abrasion capability changes of the wires as a function of doses.

- 242 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) 1 Sheet No. | S3-WR02

Component Ceramics insulated electric Wire (S/b) & Imitation sensor coil made use of Wire (S/b)Classification Newly-developed product1. Major Specifications

- Supplier : Sumitomo Electric Industry Co.- Type : Wire (S/b) (Ceramics (SiO2) insulated wire)- Conductors : Ni coated Cu (0.196 mm in diameter)- Materials of electric insulator : Silicon oxide (SiO2)- BDV (breakdown voltage): 100 ~ 500 V- Tensile strength : 20 ~ 30 MPa- Outter diameter of wire : 0.212 mm - Critical diameter of curvature : 4 mm

- Material of imitated stator core : Permalloy- Number of coil: 30 turn- Material of binder : Inorganic binder- Dimensions of imitation stator coil core : 5 mm in length x 5 mm in width x 10 mm in thickness

2. Irradiation ConditionsFacility j No. 3 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate(R/hr) 1.5 xlO6

Temperature |250°C [Humidity [Ambient [Atmosphere | N2 gas

3. Measurement Items & Acquisition Period

- Wire (S/a)(1) Insulation capability : After irradiation(2) BDV (break down viltage) : After irradiation(3) Flexibility : After irradiation(4) Abrasion capability : After irradiation- Imitated stator ciol(1) Insulation capability : After irradiation(2) BDV (break down viltage): After irradiation

4. Accumulation Dose | 47.7 MGy | 5. Acceptance Doses [over 47.7 MGy

6. Results

(1) Insulation capability did not change but BDV decreased slightly from irradiation of 10 MGy.(2) Flexibility increased drastically up to doses of 10 MGy ,after that decreased drastically.(3) Change of abrasion capability is little.(4) In case of the imitated coil, insulation capability and BDV increased a little.

7. Reference Data Sheet

- S3-WR02-1 Overview and cross section of the wire (S/b) and the imitation stator coil made use ofthe Wire (S/b).

- S3-WR01-2 Electric characteristic changes of the Wires ((S/a), (S/b)) and the imitation coils(motor stator coil, sensor coil).

- S3-WR01-3 Mechanical characteristic changes of the Wires ((S/a), (S/b)) and the imitation coils(motor stator coil, sensor coil).

- 243 -

JAERI-Tech 99-003

Reference Data Sheet / S3-WR02-1

[Sectional plan of wire]

(a) Overall structure and micro graph (x 400) of the Wire (S/b).1, conductor; 2, Ni coating; 3, SiO2 insulator

Mold inorganic binder into c o i l

(b) Overview of the imitation sensor coil made use of the Wire (S/b).Dimensions : length, 5 mm; width, 5 mm; height, 10 mm

- 244 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Sheet No. S3-WRO3Component Polyimide insulated electric Wire (H/a-1) & Outgassing treated Wire (H/a-2)Classification Modified product1. Major Specifications

- Supplier : Hitachi Cable Co.

- Type : Wire (H/a-1) (Polyimide insulated wire)

- Conductors : Ni coated OFC (0.593 mm in diameter)- Insulation resistance : 1013 D. - BDV (breakdown voltage) : 10 kV- Critical diameter of curvature : 1 d (d means outter diameter of the wire)- Adhesion capability : 5 H (pencil hardness)

- Type : Wire (H/a-2) (The Wire (H/a-1) was processed outgassing treatment )- Treatment conditions : 300 °C x2 hr- Conductors : Ni coated OFC (0.593 mm in diameter)- Insulation resistance : 1012 O - BDV (breakdown voltage): 9 kV- Critical diameter of curvature : 1 d (d means outter diameter of the wire)- Adhesion capability : 5 H (pencil hardness)

2. Irradiation ConditionsFacility No. 3 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5 xlO6

Temperature | 250 °C Humidity | Ambient Atmosphere j N2 gas3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) BDV (break down viltage) : After irradiation(3) Elongation : After irradiation(3) Flexibility : After irradiation

4. Accumulation Dose |47,7MGy j 5. Acceptance Doses | over 47.7 MGy

6. Results

- Both wires showed nearly the same tendencies as follows:

(1) Insulation resistance and BDV changed a little but these changes are estimated due tomeasurement error.

(2) Elongation and flexibility did not change.(3) Change of abrasion capability is little.(4) In case of the imitated coil, insulation capability and BDV increased a little.

7. Reference Data Sheet

- S3-WR03-1 Cross sections of the Wire (H/a-I) and Wire (H/a-2).- S3-WR03-2 Electric characteristic changes of the Wires ((H/a-1), (H/a-2), (H/b-1) and (H/b-2)).- S3-WRO3-3 Mechanical characteristic changes of the Wires ((H/a-1), (H/a-2), (H/b-1) and (H/b-2)).

- 245 -

JAERI-Tech 99-003

Reference Data Sheet /S3-WR03-1

(a) Overall structure of the polyimide insulation electric wire (H/a-1, 2).1, conductor; 2, polyimide insulator;

(b) Overall structure of the ceramics/polyimide hybridinsulation electric wire (H/b-1, 2).1, conductor; 2, SiO2; 3, polyimide insulator

- 246

JAERI-Tech 99-003

Reference Data Sheet / S3-WR03-2

o# • *

m

1jo

25 50 75

Accumulated exposure dose (MGy)

100

12

J ,0

i1CQ

: j

^gs^y—'j I

, j

1 — i —

—1—...—t

1

i j

! —

! i i— O - -

—o—

H/a-1H/«-2H/b-1HA-2

. ...1

1 1 1 !' 1

25 50 75

Accumulated exposure dose (MGy)

100

Insulation resistance (upper) and BDV (bottom) changes of the wires as a function of doses.H/a-1, polyimide insulated wire; H/a-2, outgassing treated polyimide insulation wire;H/b-1, ceramics/polyimide insulated wire; H/b-2, outgassing treated ceramics/polyimideinsulation wire.

- 247 -

JAERI-Tech 99-003

Reference Data Sheet /S3-WR03-3

100

80

60

C 40o

UJ

20

j 1

i—,I

!i

• ! I!

- • I

i

!i "

1

i

1|j

iii i

tI

i

1

_. ,_.H/a-—O--H/a-—•—H/b-—a—H/b-i

—

2>

—

i

25 50 75

Accumulated exposure dose (MGy)

100

10

8 "2

a>

S 2

—f-r!

i—'—;

1ii

T

I

—r

• • •

1 l

1

j

^ -

A

i

s_Jr

mm

i

1

—

— • - . H/a-1 L__O--H/a-2 1

— D — HA>- ,1' 1 < I

i

1

I

|

1i

25 50 75

Accumulated Exposure Dose (fiilGy)

100

Elongation (upper) and flexibility (bottom) changes of the wires as a function of doses.H/a-1, polyimide insulated wire; H/a-2, outgassing treated polyimide insulation wire;H/b-1, ceramics/polyimide insulated wire; H/b-2, outgassing treated ceramics/polyimideinsulation wire.

- 248 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) | Sheet No. | S3-WR04Hybrid insulation (ceramics/polyimide) electric Wire (H/b-1) &Outgassing treated Wire (H/b-2)

Component

Classification Newly-developed product

1. Major Specifications

- Supplier : Hitachi Cable Co.

- Type : Wire (H/b-1) (ceramics/polyimide insulated wire)

- Conductors : Ni coated OFC (0.593 mm in diameter)- Structure : 1st layer, A12O3; 2nd layer, Polyimide- Insulation resistance : 9 x 1012 Q - BDV (breakdown voltage): 3 kV- Critical diameter of curvature : 1 ~ 3 d (d means outter diameter of the wire)- Adhesion capability : 5 H (pencil hardness)

- Type : Wire (H/b-2) (The Wire (H/b-1) was processed outgassing treatment)- Treatment conditions : 300 °C x2 hr- Conductors : Ni coated OFC (0.593 mm in diameter)- Insulation resistance : 8 x 1012 Q - BDV (breakdown voltage) : 2.5 kV- Critical diameter of curvature : 2 ~ 4 d (d means outter diameter of the wire)- Adhesion capability : 5 H (pencil hardness)

2. Irradiation ConditionsFacility | No. 3 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5 x 106

Temperature | 250 °C j Humidity | Ambient | Atmosphere | N2 gas3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) BDV (break down viltage): After irradiation(3) Elongation : After irradiation(3) Flexibility : After irradiation

4. Accumulation Dose |47.7MGy [ 5. Acceptance Doses | over 47.7 MGy

6. Results

- Both wires showed nearly the same tendencies as follows:

(1) Insulation resistance and BDV changed a little but these changes are estimated due tomeasurement error.

(2) Elongation and flexibility decreased after irradiation of 25 MGy.(3) Hybride effect did not recognize in this test.

7. Reference Data Sheet

- S3-WRO3-1 Cross sections of the Wire (H/a-1) and Wire (H/a-2).- S3-WR03-2 Electric characteristic changes of the Wires ((H/a-1), (H/a-2), (H/b-1) and (H/b-2)).- S3-WR03-3 Mechanical characteristic changes of the Wires ((H/a-1), (H/a-2), (H/b-1) and (H/b-2)).

249

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) j Sheet No. 1 S3-WRO5Component Varnish insulated wire (Polyimide, Polyamideimide)Classification Modified product1. Major Specifications

- Supplier : Totoku Co.- Type : Polyimide insulated wire, Polyamideimide insulated wire- Conductors : Ni coated Cu (0.5 mm in diameter)- Forming methode : Mild baking after dipping- Thickness of insulator : Polyimide insulated wire, 25 urn

: Poiyamideimide insulated wire, 25 um and 63 urn- Directions for use : Coils for electric parts

2. Irradiation ConditionsFacility | No. 3 Cell in the Co-60 building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 2 x 106

Temperature 1 250 °C | Humidity 1 Ambient 1 Atmosphere j N2 gas

3. Measurement Items & Acquisition Period

(1) BDV (breakdown voltage): After irradiation(2) Flexibility : After irradiation(3) Dielectric loss (tan 6): After irradiation(4) Glass transition temperature (Tg) : After irradiation

4. Accumulation Dose 100 MGy 5. Acceptance Doses 30, 100 MGy(see 6.(3))

6. Results

(1) On the both wires, Tg is in proportion to accumulation dose and tan 6 is inverse proportion toaccumulation dose.

(2) The tan 6 of the polyamide imide is rapidly increased from the measurement temperature of 250 °C.(3) Radiation hardness of the polyimide and polyamideimide wires in an oxygen free condition is

estimated 100 MGy and 30 MGy, respectively.

7. Reference Data Sheet

- S3-WR05-1 Overall structure and appearance of the varnish insulated wire.- S3-WR05-2 Characteristic changes of the wires before and after irradiation.- S3-WRO5-3 Temperature dependency of tan 6 of the wires before and after irradiation.

- 250 -

JAERI-Tech 99-003

Reference Data Sheet / S3-WR05-1

Mi coated on Cu( 0 . 5 $ mm)

Ms coated on Co( 0 . 5 ^ mm)

(25 /tin) (63 /A m)

Overall structure and appearance of the varnish insulated wires.

251 -

Characteristic changes of the varnish insulated wires before and after irradiation.

Thickness(/i m)

Dose(MG y)

B.D.V.(k v)

Flexibility1 d 2 d

Tg

Polyimide 25

I

I

25

Polyamideimide

63

010284871

100

010305071

010305071

11.5310.25

7.737.798.06

12.95

11.9819.5911.7012.889.64

13.4719.9919.9619.0017.45

000005

00014

00003

000000

00000

00000

296295300301303291

263292306297298

tn

I•HCDO

to

oo

264292304306309

1n3nn

nn

3§

JAERI-Tech 99-003

Reference Data Sheet / S3-WR05-3

0.20

0.18

0.16

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0.00100 120 140 160 180 200 220 240 260 280 300 320 340

Temperature (°C)

(a) Temperature dependency of tan 8 of the polyimide insulated wiresbefore and after irradiation.

1 1 1——r

-

(1) Unirrad.

(2) lOMGy

- (3)48MGy(4)100MGy

250°C, N2gas

-

-

1 i i i

Polyimide

~i 1 —

(2) .

1 1

"T-

-

(3)-1

0.20

0.18

0.16

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0.00

(1) Unirrad.(2) lOMGy

(3) 50MGy

(4)71MGy

2 5 0 ^ ,

Polyamideimide; 7

100 120 140 160 180 200 220 240 260 280 300 320 340Temperature (°C)

(b) Temperature dependency of tan 8 of the polyamideimide insulated wiresbefore and after irradiation.

- 253 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) | Sheet No. ] S3-TC01Component Polyimide insulated K-type thermocouple (H/a-1) & outgassing treated K-type

thermocouple (H/a-2)Classification Modified product

1. Major Specifications

- Supplier : Hitachi Cable Co.

- Type : T/C-(H/a-l)

- Conductors : Ni coated chromel and alumel (0.593 in diameter)- Insulator : Polyimide - Jacket: Glass fiber fabric- Insulation resistance between chromel and alumel: 1013 Q- BDV (breakdown voltage): 10 kV- Critical diameter of curvature : 1 d (d means outter diameter of the wire)- Adhesion capability : 5 H (pencil hardness)

- Type : T/C-(H/a-2)- Treatment conditions : 300 °C x2 hr- Conductors : Ni coated chromel and alumel (0.593 in diameter)- Insulator : Polyimide- Jacket: Glass fiber fabric - Jacket: Glass fiber fabric- Insulation resistance between chromel and alumel: lO^2 Q- BDV (breakdown voltage): 9 kV- Critical diameter of curvature : 1 d (d means outter diameter of the wire)- Adhesion capability : 5 H (pencil hardness)

2. Irradiation ConditionsFacility j No. 3 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5Temperature J250^C 1 Humidity 1 Ambient | Atmosphere | N2 gas

3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) BDV (break down viltage): After irradiation(3) Flexibility : After irradiation

4. Accumulation Dose |47.7MGy | 5. Acceptance Doses jover47.7MGy

6. Results

(1) On the both thermocouples, insulation resistance between chrome! and alumel was measured inranging from 1.6 x!013 to 2.3 x 1013 Q.

(2) BDV and flexibility did not change compared before irradiation.

7. Reference Data Sheet

- S3-TC01-1 Overall structure of the polyimide insulation and hybrid insulation thermocouples.

- 254 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) | Sheet No. j S3-TC02Component Hybrid insulation (ceramics/polyimide) K-type thermocouple (H/b-1) & outgassing

treated K-type thermocouple (H/b-2)Classification Newly-developed product1. Major Specifications

- Supplier : Hitachi Cable Co.

-Type:T/C-(H/b-l)- Conductors : Ni coated chromel and alumel (0.593 in diameter)- Insulator : 1st layer, SiO2; 2nd layer, Polyimide - Jacket: Glass fiber fabric- Insulation resistance between chromel and alumel: 9 x 1012 Q.- BDV (breakdown voltage): 3 kV- Critical diameter of curvature : 1 ~ 3 d (d means outter diameter of the wire)- Adhesion capability : 5 H (pencil hardness)

- Type : T/C-(H/b-2)- Treatment conditions : 300 °C x 2 hr- Conductors : Ni coated chromel and alumel (0.593 in diameter)- Insulator : 1 st layer, SiO2; 2nd layer, Polyimide - Jacket: Glass fiber fabric- Insulation resistance between chromel and alumel: 8 x 1012 Q- BDV (breakdown voltage): 2.5 kV- Critical diameter of curvature : 2 ~ 4 d (d means outter diameter of the wire)- Adhesion capability : 5 H (pencil hardness)

2. Irradiation ConditionsFacility | No. 3 Cell in the RI building in Takasaki-JAERJRadiation Source [ Co-60 | Dose Rate (R/hr) 1.5 xlO6

Temperature j 250 °C [Humidity j Ambient j Atmosphere [N2gas

3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) BDV (break down viltage) : After irradiation(3) Flexibility : After irradiation

4. Accumulation Dose |47.7MGy 5. Acceptance Doses j over 47.7 MGy

6. Results

(1) Insulation resistance between chromel and alumel of the both thermocouples was measured thesame value of 1 x 1013 Q.

(2) BDV and flexibility did not change compared before irradiation.

7. Reference Data Sheet

- S3-TC01-1 Overall structure of the polyimide insulation and hybrid insulation thermocouples.

- 255 -

JAERI-Tech 99-003

Reference Data Sheet / S3-TC01-1

(a) Overall structure of the polyimide insulation thermocouple (H/a-1, 2).1, conductor (chrome! & alumel); 2, polyimide insulator;3, glass fiber fabric insulator

(b) Overall structure of the ceramics/polyimide hybridinsulation thermocouple (H/b-1, 2).

1, conductor (chromel & alumel); 2, SiO2;3, polyimide insulator; 4, glass fiber fabric

- 256 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) 1 Sheet No. | S3-CN01Component Polymer (thermoplasticity polyimide, PEEK) insulated electric connectorsClassification Modified product

1. Major Specifications

- Supplier : Hitachi Cable Co.- Type of insulators : Thermoplasticity polyimide, UPELEX-S™; AURAMTR; VESPELJR

: Poly-ether-ether-ketone (PEEK)- Supplier of polymer insulators : UPILEX-STR, Ube Industries Co.;

AURAMTR, Mitsui Toatsu Co.;VESPELTR, Dupont Co.;PEEK, Mitsui Toatsu Co.

- Number of pins : 19 pins

2. Irradiation ConditionsFacility No. 3 Cell in the RI building in Takasaki-JAERJRadiation Source Co-60 Dose Rate (R/hr) 2xlO6

Temperature | 250 °C Humidity | Ambient Atmosphere 1 N2 gas

3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) Withstanding voltage : After irradiation

4. Accumulation Dose | 100 MGy 5. Acceptance Doses over 100 MGy

6. Results

(1) Insulation resistance and withstanding voltage of these polymer insulaton connectors did notchange after irradiation of 100 MGy.

(2) The acceptance doses of 100 MGy shows an evaluation in oxygen free condition.

7. Reference Data Sheet

- S3-CN01-1 Fabricated four kinds of the polymer insulated electric connectors.- S3-CN01-2 Appearance changes of the connectors after irradiation.- S3-CNO1-3 Electric characteristic changes of the connectors after irradiation.

- 257 -

un

•^ o ftI

I

r30

OCM

(fitrn)

toenoo

y PI - s PEEK

re

S1

re3

re

o

srrere

>

CDO

ID

OoCO

Fabricated four kinds of the polymer insulated electric connectors. s

toen

um:rrad. lOMGy 50MGy

Unirrad. IQMGy SOfviGy lOOMGy

!':;'Unirrad. lOMGy SOMGy l~0CMGy|

VESPEL1

Appearance changes of the polymer insulated electric connectors before and after irradiation.

rer?•rre3nre©as

rere

no

O

SOSO

IooGO

JAERI-Tech 99-003

Reference Data Sheet /S3-CN01-3

Electric characteristic changes of the polymer insulated electric connectors after irradiation.

UPILEX - S

PEEK

AURAM

VESPEL

Unirrad.

51SflGy

100iGy

Unirrad.

51WSGy

100iGy

Unirrad.

51iGy

lOOMGy

Unirrad.

51li3Gy

10(M3y

insulation resistance

(between Pin and Pin)

(Q)

3.9X10 1 2

1.4X101 3

5.5X10 1 3

6.1 X1012

3.1 xio13

1.0X1014

2.4X1012

2.0X1013

4.9X1013

6. 5X1011

1.2X1013

3. 5X1013

Withstand

voltage

2200V (1min)

Passing

Passing

Passing

Passing

Passing

Passing

Passing

Passing

Passing

Passing

Passing

Passing

- 260 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Sheet No. S3-CN02Component Polymer (thermoplasticity polyimide) insulated electric connectorClassification Modified product1. Major Specifications

- Supplier : Hitachi Cable Co.- Type of insulators : Thermoplasticity polyimide,- Supplier of polymer insulators : BEKTR, Idemitsu Kosan Co.- Number of pins : 19 pins

2. Irradiation ConditionsFacility No. 3 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.5 x lO 6

Temperature | 300 °C Humidity j Ambient Atmosphere | N2 gas3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) Withstanding voltage : After irradiation(3) Contact resistance : After irradiation

4. Accumulation Dose j l 1.2 MGy 5. Acceptance Doses | over 11.2 MGy

6. Results

(1) Insulation resistance, withstanding voltage and contact resistance of the polymer insulatonconnector did not change after irradiation of 11.2 MGy.

(2) The acceptance doses of 11.2 MGy shows an evaluation in oxygen free condition.

7. Reference Data Sheet

- S3-CN02-1 Assembly structure of the BEK used electric connector.- S3-CN02-2 Overall structure and appearance of the BEK used electric connector.

- 261 -

Pin - contact

toro

Receptacle - shell

9r>n

soh-i

I—3no

«3toi

oow

Assembly structure of the B E K T R used electric connector.onsr

(/I

oo

JAERI-Tech 99-003

Reference Data Sheet / S3-CN02-2

a ) plug b) Receptacle

a) plug

b) Receptacle

Overall structure and appearance of the BEKTR used electric connector.

- 263 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Sheet No. j S3-CNO3Component Ball bearing used electric connector (First stage)Classification Newly-developed product1. Major Specifications

- Supplier : Hitachi Haramachi Electrinics Co.- Type : Ball bearing used electric connector corresponding to remote handling- Mechanism of attachment and removing : Ball bearing- Materials of insulator and housing : A12O3, SS- Insulation resistance : 1 kfl/DC 500V - BDV (breakdown voltage): DC 1 kV/lmin- Contact resistance : under 10 mfi/DC 1 A- Dimensions of plug : 73 mm in outter dia. x43 mm in length- Number of pins : 4 pins

2. Irradiation ConditionsFacility No. 2, 3 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) i x l O 6

Temperature | Ambient Humidity | Ambient I Atmosphere j Air

3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) BDV (breakdown voltage): After irradiation(3) Contact resistance : After irradiation

4. Accumulation Dose | 100 MGy I 5. Acceptance Doses | over 100 MGy

6. Results

(1) Insulation resistance, BDV and contact resistance of the ball bearing used electric connectordid not change after irradiation of 100 MGy.

7. Reference Data Sheet

- S3-CNO3-1 Overall structure of the first stage ball bearing used electric connector.- S3-CN03-2 Layout of the ball bearing used electric connectors in the irradiation cell.- S3-CN03-3 Electric characteristic changes of the connectors as a function of accmulation dose.

- 264 -

JAERI-Tech 99-003

Reference Data Sheet /S3-CN03-1

(SUS)<lfc ttWUbflk

Socket (femaie) of the 1st. phase connector17 : Sockt 18 : Insulator 20 : Housing 23 : Stopper

PSug (male) of the 1st. phase connector1 : Pin 2 : Insulator 4 : Guide pin 9 : Flange for insulator10 : Ball bearing 11 : Flange for ball bearing 13 : Spring15 : Housing 16 : Ball planger

Overall structure of the first stage ball bearing used electric connector.

265 -

JAERI-Tech 99-003

Reference Data Sheet / S3-CN03-2

(a) The first stage ball bearing used electric connector.Left, plug (male); right, socket Female).

% *

(b) Five connectors were set in the irradiation cell.

- 266 -

JAERI-Tech 99-003

Reference Data Sheet /S3-CN03-3

1st phase electric connector

8s55

onoo

20 40 60 80

Accumulated exposure dose (MGy)

100

15001st phase electric connector

No.1,2,4,5,6BDVInsu.Capabi.

QQ

1500

1000

aa.

3500 =a

301C

20 40 60 80

Accumulated exposure dose (MGy)

100

Electric characteristic changes of the first stage connectors as a function of doses.Upper, contact resistance; bottom, breakdown voltage and insulation resistance.

- 267 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) | Sheet No. | S3-CN04Component Ball bearing used electric connector (Second stage)Classification Newly-developed product1. Major Specifications

- Supplier : Hitachi Haramachi Electrinics Co.- Type : Ball bearing used electric connector corresponding to remote handling- Mechanism of attachment and removing : Ball bearing (NTN KXS010)- Material of insulator : A12O3- Materials of pin and housing : Fe-Ni alloy (Ni coating); Al alloy, SS- Insulation resistance : 1,000 MQ/DC 500V - Withstanding voltage : DC 1 kV/lmin- Contact resistance : under 10 mQ/DC 1 A- Dimensions : 63 mm in outter dia. x 62 mm in length- Number of pins : 10 pins

2. Irradiation ConditionsFacility | No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1 x 106

Temperature I Ambient THumidity I Ambient I Atmosphere I Air3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) Withstanding voltage : After irradiation(3) Contact resistance : After irradiation

4. Accumulation Dose | 100 MGy | 5. Acceptance Doses | 75 MGy6. Results

(1) Contact resistance of the connector increased rapidly from accumulation dose of 75 MGy.

7. Reference Data Sheet

- S3-CN04-1 Overall structure of the second stage ball bearing used electric connector.- S3-CN04-2 Contact resistance changes of the second stage connectors as a function of doses.

- 268 -

Ball Bearing

Ito

(52, 3rd)

Receptacle Plug

S

©isS?cn

>en

I

o

oo

Overall stracture of the second stage ball bearing used electric connector.

IS3

O

—•—No.1—«—No.2- - * - - N o . 3— K— No.4

W • ' • • ' ' "• i ii II» m H i- T m . r

•

J/

y

/ // /V

f

• / >

. , . / . . /

7

37.5

36.5

32.3

o

OO

10 20 30 40 50 60

Total Dose (MGy)70 80 90 100

Contact resistance changes of the second stage connectors as a function of doses,(test condition, applied DC 1 A; allowable resistance, under 10 mfl)

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as»

n

!o

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) 1 Sheet No. [ S3-CN05Component Ball bearing used electric connector (Third stage)Classification Newly-developed product

1. Major Specifications

- Supplier : Hitachi Haramachi Electrinics Co.- Type : Ball bearing used electric connector corresponding to remote handling- Mechanism of attachment and removing : Ball bearing (NTN KXS010)-Material of insulator : A12O3- Materials of pin and housing : Fe-Ni alloy (Au coating); AJ alloy, SS- Insulation resistance : 1,000 Mfi/DC 500V- Withstanding voltage : 6 pins, DC 1 kV/lmin; 22 pins, DC 500V/1 min- Contact resistance : under 10 mD/DC 1 A- Dimensions : 51.4 mm in outter dia. x 52 mm in length- Number of pins : 6 and 22 pins

2. Irradiation ConditionsFacility No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) i x l O 6

Temperature | Ambient Humidity | Ambient Atmosphere | Air3. Measurement Items & Acquisition Period

(1) Insulation resistance : After irradiation(2) Withstanding voltage : After irradiation(3) Contact resistance : After irradiation

6 pins : 50 MGy22 pins ; 50 MGy

4. Accumulation Dose 5. Acceptance Doses 6 pins : 50 MGy22 pins ; 25 MGy

6. Results

(1) Contact resistance of the connector increased rapidly from accumulation dose of 25 MGy.

7. Reference Data Sheet

- S3-CNO5-1 Appearance of the third stage ball bearing used electric connector.- S3-CNO5-2 Contact resistance changes of the third stage connectors as a function of doses.

- 271 -

JAERI-Tech 99-003

Reference Data Sheet / S3-CN05-1

Appearance of the third stage ball bearing used electric connectors.Upper, three types (2, 6 and 22 pins) connectors were fabricated;middle, Spar gear was fabricated around the plug for connection/disconnection;bottom, Tool for connection/disconnection.

- 272

20

18

16

cs

O 12

.2 10

I.1a

y

i16.4

*15.7

^9.7

—4—No.1 (6pin)— « — No.2(22pin)--*--No.3(22pin)

soi—i

i-ifl>O3"COVO

OOCO

10 20 30 40 50 60

Total Dose (MGy)70 80 90 100

an

Contact resistance changes of the third stage connectors as a function of doses,(test condition, applied DC 1 A; allowable resistance, under 10 m£2)

S3"

V*Sots>

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) ! Sheet No. \ S3-ID01Component Vacuum gauge (Capacitance manometer)Classification Commercial product1. Major Specifications

- Supplier : ULVAC Co.-Type:CCM-1000- Measurable range : 10"2 ~ 103 Pa- Materials of diaphragm and housing : Ceramics,- Accuracy : ± 0.5 %- Available temperature : 5 ~ 50 °C

SS

2. Irradiation ConditionsFacility No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 3.4 xlO5

Temperature Ambient Humidity Ambient Atmosphere Outside : AirInside : Vacuum

3. Measurement Items & Acquisition Period

(1) Output signal* : After irradiation (just after the radiation source falling)* to measure a pump down curve in ranging from 1 atm. (N2) to measurable limit.

4. Accumulation Dose | 1,200 Gy 5. Acceptance Doses j not recommend

6. Results

(1) Output signal was shifted below zero level after irradiation of 30 min.(2) I/O and analogue boards in the gauge were damaged by gamma-ray irradiation.

7. Reference Data Sheet

- S3-ID01-1 Overview of the vacuum gauges and layout of the gauges in the irradiation cell.- S3-ID01-2 Output signal changes of the capacitance manometer before and after irradiation.

- 274 -

(a) Upper : vacuum gauges in the irradiation cell.Left, capacitance manometer; center, ionization gauge;right, Pirani gauge.Bottom : data acquisition system.

5 0

CD

n

iooCO

50n

3

(b) The vacuum gauges. Upper, capacitance manometer;middle, Pirani gauge; bottom, ionization gauge.

in3*

ft

(75

>4

©

'£ = Before irradiationVertical: Pressure (0.25V/cm), Horizontal: Time (6cm/min.)

-r^^u i. I X

LJ.-__L

- — . _ __,

• r txof l - . .** B ^ S O I » H i i i

^

Fnz i ~

E!^H3

z ^ T

30min. after irradiation (1.2kGy)Vertical : Pressure (0.25V/cm)Horizontal: Time (6cm/min.)

i i . ..

Pump down curve changes of the capacitance manometer before and after irradiation.Left, before irradiation; right, after irradiation of 1.2 kGy.

nan

M

inB*rtrt?^

in

I-iCDO

toCO

Ioo

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Sheet No. S3-ID02Component Vacuum gauge (Pirani gauge)Classification Commercial product1. Major Specifications

- Supplier : ULVAC Co.-Type :WPB10-070- Measurable range : 0.4 ~ 3,000 Pa- Material of filament . Platinum - Material of housing : SS- Accuracy : ± 3 % in full scale- Available temperature : 10 ~ 40 °C

2. Irradiation ConditionsFacility No. 2 Cell in the RJ building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 3.4 xlO5

Temperature Ambient Humidity Ambient Atmosphere Outside : AirInside : Vacuum

3. Measurement Items & Acquisition Period

(1) Output signal* : After irradiation (just after the radiation source falling)* to measure a pump down curve in ranging from 1 atm. (N2) to measurable limit.

4. Accumulation Dose | 10.2 MGy j 5. Acceptance Doses f over 10.2 MGy

6. Results

(1) Pressure change can be measured after doses of 10.2 MGy.

7. Reference Data Sheet

- S3-ID01-I Overview of the vacuum gauges and layout of the gauges in the irradiation cell.- S3-ID02-1 Output signal changes of the pirani gauge before and after irradiation.

- 277 -

00

Before IrradiationVertical: Pressure (1mV/cm), Horizontal: Time (2cm/mln.)

After Irradiation (5.1 MGy)Vertical: Pressure (1mV/cm)Horizontal :Tlme (2cm/tnln.)

I i I . J-L

After Irradiation (10.2 MGy)Vertical: Pressure (1mV/cm)Horizontal: Time (2cm/min.)

>PIvai—i

iCDO

O

o

Pump down curve changes of the Pirani gauge before and after irradiation.Left, before irradiation; middle, accumulation dose of 5.1 MGy;right, accumulation dose of 10.2 MGy.

3ann

8o

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Sheet No. S3-ID03Component Vacuum gauge (Ionization gauge)Classification Commercial product1. Major Specifications

- Supplier : ULVAC Co.-Type : M-13- Measurable range : 5 x 3O8 ~ 10 Pa- Material of filament: Iridium - Material of housing : SS- Accuracy : ± 15 % in full scale- Available temperature : 10 ~ 40 °C

2. Irradiation ConditionsFacility No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 3.4x10$Temperature Ambient Humidity Ambient Atmosphere Outside : Air

Inside : Vacuum3. Measurement Items & Acquisition Period

(1) Output signal* : After irradiation (just after the radiation source falling)* to measure a pump down curve in ranging from 0.4 Pa (N2) to measurable limit.

4. Accumulation Dose 10.2 MGy I 5. Acceptance Doses | over 10.2 MGy

6. Results

(1) Pressure change can be measured after doses of 10.2 MGy.

7. Reference Data Sheet

- S3-ID01-1 Overview of the vacuum gauges and layout of the gauges in the irradiation cell.- S3-ID02-1 Output signal changes of the ionization gauge before and after irradiation.

- 279 -

to00o

Before: Irradiation ; iVertical: Pressure (0.5V/cm),: •' Horizontal: Time (60cm/hr)

After irradiation _(5.1 MGy) ^Vertical: Pressure (0.5V/cm)Horizontal: Time (60cm/hr) j j= i

•Hi

After irradiation (10.2 MGy) :T|"'j 'Ff Vertical: Pressure (0.5V/cm) E

f-t-j-i-^=t | ; i Horizontal: Time (GOcm/hr) "~J-4rjJ.JJ..l-...j-r

51

I

>mso1

(BO3 "

ooCO

Pump down curve changes of the ionization gauge before and after irradiation.Left, before irradiation; middle, accumulation dose of 5.1 MGy;right, accumulation dose of 10.2 MGy.

CM

s

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Sheet No. S3-ID04Component Ultra-sonic transducer (Perpendicular injection type)Classification Commercial product

1. Major Specifications

- Supplier : Toshiba Co.- Type : Perpendicular injection type- Materials of main parts : Oscillator, PbNbO3; Filler & Binder, Epoxy resin;

Casing, SS304; Damper, Powdered W and epoxy resin;Protector plate, A12O3

- Material of contacted medium : Water, Grycerol

2. Irradiation ConditionsFacility No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) l x l O 6

Temperature | Ambient Humidity | Ambient j Atmosphere | Air3. Measurement Items & Acquisition Period

(1) Echo height (sensitivity): Under irradiation

4. Accumulation Dose [lOMGy j 5. Acceptance Doses | 0.1 MGy

6. Results

(1) Sensitivity changes by difference of two kinds of contacted mediums are as follows:• Water, began to decrease from accumulation dose of 0.1 MGy• Grycerol, began to decrease from accumulation dose of 0.01 MGy

(2) Echo height decreased by one-ten at accumulation dose of 10 MGy.

7. Reference Data Sheet

- S3-ID04-1 Layout of the UT sensors and data acquisition system inside and outside irradiation cell.- S3-ID04-2 Overall structure of the perpendicular type ultra-sonic transuducer.- S3-ID04-3 Echo height changes of the perpendicular type UT sensors as a function of

accumulation dose.- S3-ID04-4 Appearance of the perpendicular type UT sensors after irradiation.

- 281 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID04-1

(a) Layout of the UT probes (behind) in the irradiation cell.

(b) Data acquisition system outside the irradiation cell.

- 282 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID04-2

>0

-i ± t—

[Sectional plan of UT]

is,-"*** 1

Configuration of the ultra-sonic transducer(perpendicu!ar type)1 : Test piece 5 : Holding screw 9 : Vibrator 13 : Filling2 : UT 6 : Frame 10: Adhesive 14 : Casing3 : Slit 7 : Cable 11 : Dumper4 : Guide 8 : Protector 12 : Conductor

Overall structure of the perpendicular injection type UT probe.

- 283 -

(1) Medium : Water, Unit-1, Ch.-1

00

I

(3) Medium : Grycerol, Unit-2, Ch.-3

102 10" 10*

Doses (rad)10"

(2) Medium : Water, Unit-1, Ch.-2

id2 rb4 io«Doses (rad)

10" 10*°

1

1.4

1.3

1.2

1.1

1

0.9

o. a0.7

0.6

0. 5

0.4

0.3

0.2

U.I

0 -i 1 1 1 1 1 rioJ id1 io"

Doses (rad)

Medium : Grycerol, Unit-2, Ch.-4

>m33

I—1CDO

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Doses (rad)

"1nsnn

t/3

(1), (2) Echo height changes of the perpendicular injectiontype UT probes as a function of doses. Medium : water.

(3), (4) Echo height changes of the perpendicular injectiontype UT probes as a function of doses. Medium : glycerol.

*c*00en

I-HI

•Hft)o

t o

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(a) Overview of the perpendicular type injectiontype UT probes after irradiation of 10 MGy.Left : medium, glycerol; right : medium, water.

(b) Appearance of the perpendicular type injectiontype UT probes after irradiation of 10 MGy.Upper : before irradiation; bottom : left, glycerol;right : water.

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JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) 1 Sheet No. 1S3-IDO5Component Ultra-sonic transducer (Inclined injection type)Classification Commercial product1. Major Specifications

- Supplier : Toshiba Co.- Type : Inclined injection type- Materials of main parts : Oscillator, PbNbO3; Filler & Binder, Epoxy resin;

Casing, SS304; Damper, Powdered W and epoxy resin;Protector plate, A12O3

- Material of contacted medium : Water, Grycerol- Materials of wedge : PEI (polyether imide), Acrylic

2. Irradiation ConditionsFacility No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) i x l O 6

Temperature [ Ambient Humidity | Ambient Atmosphere | Air3. Measurement Items & Acquisition Period

(1) Echo height (sensitivity) : Under irradiation

4. Accumulation Dose 10 MGy 5. Acceptance Doses PEI wedge: 0.1 MGyAcryl. wedge : 0.001MGy

6. Results

(1) Radiation hardness of the PEI wedge is better than the acrylic wedge.(2) In case of acrylic wedge, echo height began to decrease from 0.001 MGy.(3) The acrylic wedge melted and oscillator was exposed in the medium.

7. Reference Data Sheet

- S3-ID04-1 Layout of the UT sensors and data acquisition system inside and outside irradiation cell.- S3-IDO5-1 Overall structure of the inclined type ultra-sonic transuducer.- S3-IDO5-2 Echo height changes of the inclined type UT sensors as a function of accumulation dose.- S3-IDO5-3 Appearance of the inclined type UT sensors after irradiation.

- 286 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID05-1

Configuration of the ultra-sonic transducer(inclined type)

1 : Test piece 5 : Holding screw 9 : Vibrator 13 : Casing2 : UT 6 : Frame 10 : Adhesive3 : Slit 7 : Cable 1 1 : Dumper4 : Guide 8 : Wedge 12 : Filling

Overall structure of the inclined injection type UT probe.

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(7) Medium : Grycerol, Unit-4, Ch.-7Wedge: PEI

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Doses (rad)

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(5), (6) Echo height changes of the inclined injectiontype UT probes as a function of doses.Medium : water; wedge : (5), poly-ether-imide(PEI); (6), acrylic.

(7), (8) Echo height changes of the inclined injectiontype UT probes as a function of doses.Medium : glycerol; wedge : (7), PEI; (8), acrylic.

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(a) Overview of the inclined type injectiontype UT probes after irradiation of 10 MGy.Left : medium, glycerol; right: medium, water.

(b) Appearance of the inclined type injectiontype UT probes after irradiation of 10 MGy.Upper : before irradiation; bottom : left, acrylicwedge in water; right, PEI wedge in water.

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JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) j Sheet No. | S3-ID06Component Ultra-sonic transducer (Brazed-type probe for high & low temp, use)Classification Commercial product1. Major Specifications

- Supplier : Ishikawajima Harima Heavy Industry Co.- Type : MNL (perpendicular injection type (brazed-type probe for high & low temperature use))- Available temperature range : - 196 °C ~ 550 °C- Basic structure : Brazed-type probe- Element (oscillator): LiNbO3 - Frequency : ~ 3.5 MHz- Materials of wedge or delay parts on the iradiation test : Acrylic resin, Polyimide, Ti- Couplant: HTC H03TR , Spery Heavy™

2. Irradiation ConditionsFacility No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.9 xlO6

Temperature | Ambient Humidity Ambient Atmosphere Air3. Measurement Items & Acquisition Period

(1) Sensitivity change of the probes : Under and after irradiation(2) Sensitivity change of the couplants : After irradiation

4. Accumulation Dose j 2.3 MGy 5. Acceptance Doses | over 2.3 MGy

6. Results

(1) Sensitivity of probe with acrylic resin wedge decreased rapidly as the irradiation proceeds.(2) The probes and wedges except the acrylic resin showed good radiation hardness.(3) There is no difference between the two kinds of couplants.

7. Reference Data Sheet

- S3-ID06-1 Overview and layout of the UT probes in the irradiation cell.- S3-ID06-2 Comparison of structure between the standard-type and brazed-type UT probes.- S3-ID06-3 Layout of the UT probes and data acquisition system for the irradiation test.- S3-ID06-4 Echo-signal changes of the UT probe with Ti delay material before and after iradiation.- S3-ID06-5 Echo-signal changes of the UT probe with acrylic resin wedge before and after iradiation.- S3-ID06-6 Echo-signal changes of the UT probe with BEKTR (thermoplasticity polyimide)

wedge before and after iradiation.- S3-ID06-7 Echo-signal changes of the UT probe with SX-1TR (thermoplasticity polyimide)

wedge before and after iradiation.- S3-ID06-8 Sensitivity changes of the UT probs as a function of accumulation dose & Sensitivity

changes of the probe depends on two kinds of couplants.

- 290 -

JAERI-Tech 99-003

Reference Data Sheet /S3-ID06-1

Probe - 1<£5

A

Probe - 2

Wire lead

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(a) Overview and dimensions of two types of UT probes. Three kinds of wedges wereattached to Probe-1 type sensor and a delay-material was attached to the Probe-2 typesensor.

(b) Layout of the UT probes (left) and two kinds of couplants (right) in the irradiation cell.

- 291 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID06-2

Housing

Filler

Adhesive

Connector

Piezo. element

Covering

Housing

Filler

Brazing

Wire 9ead

Piezo. element

Comparison of conventional type probe (upper) and brazed-type probe (bottom).

- 292 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID06-3

Probe-1Polyimide

Probe-1BEK

Probe-1Acrylic

Probe-2Ti

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Couplants

(Inside of the cei!)

(Outside of the cell)

Spectrometer

Waveform analyzer

Layout of the UT probes, couplants and data acquisition system for the irradiation test.

- 293 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID06-4

Before irradiation 2.3 MGy

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Before irradiation 2.3 SUIGy

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HbsTeik tap (»)Hise line (as);Peak Ffei(»hz):Hi 6 dB ( h ) :Peak Ffei(»hz):5.6tHi -6 dB («hi):6.54:BH3-SdB(«liz):2.431

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Echo-signal changes of the UT probe with Ti delay-material before and after irradiation.Dose rate, 1.9 x 106 R/h; accumulation dose, 2.3 MGy.

- 294 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID06-5

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(a) Echo-signal changes of the UT probe with acrylic resin wedge before and after irradiation.Dose rate, 1.9 x 306 R/h; accumulation dose, 2.3 MGy.

(b) Overview of the acrylic wedge before (left) and after (right) irradiation.

- 295 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID06-6

Before irradiation

33.8dB75%

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Before Irradiation 2.3 MGy

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Envel Len (us):8,858 Peak Fre<i Cnhz):3.5i6 Cntr F ry (nhz):|,858Uu-SdB (nhz):3.025 Hi -6 dB («bz)M.298 Lw -28 dB (nbz):2,838Hi -28dB(nHz):S,S12 6H 3-S dB (nhz) 11,271 BM9-SdB («:34.7

Echo-signal changes of the UT probe with BEKTR (thermoplasticity polyimide) wedgebefore and after irradiation.Dose rate, 1.9 x 106 R/h; accumulation dose, 2.3 MGy.

- 296 -

JAERI-Tech 99-003

. Reference Data Sheet / S3-IDO6-7

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Echo-signal changes of the UT probe with SX-1TR (thermoplasticity polyimide) wedgebefore and after irradiation.Dose rate, 1.9 x 106 R/h; accumulation dose, 2.3 MGy.

- 297 -

JAERI-Tech 99-003

Reference Data Sheet / S3-ID06-8

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(a) Sensitivity changes of two kinds of couplants (HTC H03T R , Sperry HeavyTR) as afunction of doses. Dose rate : 1.46 x 106 R/h.

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(b) Sensitivity changes of the brazed-type ultra-sonic probes with three kinds of wedgematerials as a function of doses. Dose rate : 1.9 x 106 R/h.

- 298 -

JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Sheet No. S3-OT01Co moon en t Carbon fiber reinforced plastic (CFRP)Classification Commercial product1. Major Specifications

- Supplier : Mitsubishi Electric Co.- Fiber: Carbon- Specimen : Specimen are different with kinds of matrix materials

(polyimide (PI), bismaleimide (BMI), epoxy (EP))- Mechanical characteristics of the CFRP specimen

• Tensile strength (MPa) : PI, 1,100; BMI, 1,300; EP, 1,100• ILSS (inter layer shearing strength) (MPa) : PI, 55; BMI, 46; EP, 60• Thermal expansion coefficient (x l O ^ C at 20 °C) : PI, 1.5; BMI, 1.8; EP, 1.4• Reflectance (wavelength, 300 ~ 1,500 nm) (%): PI, 0.3 ~ 0.5; BMI, 0.5 ~ 0.8; EP, 0.2 ~ 0.3

2. Irradiation ConditionsFacility No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 1.4 xlO6

Temperature j Ambient Humidity | Ambient Atmosphere | Air3. Measurement Items & Acquisition Period

(1) Tensile strength : After irradiation(2) ILSS : After irradiation(3) Thermal expansion coefficient: After irradiation(4) Reflectance : After irradiation

4. Accumulation Dose 50MGy 5. Acceptance Doses PI: over 50 MGyBMI: over 50 MGyEP: 50 MGy (see 6.(6))

6. Results

(1) Tensile strength of each specimen did not nearly change up to irradiation of 50 MGy.(2) ILSS of each specimen began to decrease from irradiation of 10 MGy.(3) Thermal expansion coeficient of all of the speicimen tends to decrease in proportion to

accumulation dose and this shows a hardening of the matriix materials.(4) On the EP-CFRP specimen, the thermal expansion coefficient after irradiation of 1 OMGy

decreased drastically.(5) Reflectance of all these specimen does not change after irradiation of 50 MGy.(6) Recommend under temperature of 50 °C use only.

7. Reference Data Sheet

- S3-OT01-1 Tensile strength changes of three types of CFRPs as a funtion of accumulation dose.- S3-OT01-2 ILSS changes of three types of CFRPs as a function of accumulation dose.- S3-OT01-3 Thermal expansion coefficient of PI-CFRP in ranging from R.T. to 250°C after irradiation.- S3-OT01-4 Thermal expansion coefficient of BMI-CFRP in ranging from R.T. to 250°C

after irradiation.- S3-OT01-5 Thermal expansion coefficient of EP-CFRP in ranging from R.T. to 200°C

after irradiation.

- 299 -

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JAERI-Tech 99-003

Subtask Name Subtask 3 (Common components) Sheet No. S3-OT02Component Elastomer gasket (Ethylen-propylen, Urethane)Classification Commercial product1. Major Specifications

- Type : JIS V-55 (JIS : Japanese Industrial Standard)- Dimensions : W, 4.0 ±0.1 mm; Inner dia. , 54.5 ± 0.25 mm- Materials of gaskets : Ethylen-propylen (EPDM), Urethane (AU)- Characteristics of EPDM / AU :

• Hardness : 73 / 72• Tensile strength (MPa): 16.4/40• Elastically (%): max. 800 / max. 800• Available temperature (°C): -60 ~ 150 / -60 ~ 80

2. Irradiation ConditionsFacility No. 2 Cell in the RI building in Takasaki-JAERIRadiation Source Co-60 Dose Rate (R/hr) 2 .4x lO 4 , 1.9xlO5 , 1 . 5 7 x l 0 6

Temperature | Ambient | Humidity | Ambient [ Atmosphere [ Air

3. Measurement Items & Acquisition Period

(1) Surface inspection : After irradiation(2) Hardness (equivalent compression force (seal line force)) : After irradiation(3) Sealing capability : After irradiation

4. Accumulation Dose | 15.7 MGy I 5. Acceptance Doses [0.9 MGy (see 6. (3))

6. Results

(1) Surface condition of the EPDM-gaskets becames sticky in proportion to accumulation dose butthe core of the gasket hardens conversely.

(2) The AU-gaskets become wholly sticky in proportion to accumulation dose.(3) The acceptance doses was decided by the follwing conditions;

• A part of gasket material does not stick on a flange ssurface.• Sealing capability is to maintain within the allowable leak rate.• Compression force does not change compared with an initial compression force when tighten aflange with a torque-spanner.

7. Reference Data Sheet

- S3-OT02-1 Layout of the gaskets in the irradiation cell.- S3-OT02-2 Overview and dimensions of the gasket.- S3-OT02-3 Appearance of the gaskets after irradiation of 1.2 MGy at dose rate of 2.4 x 104 R/h.- S3-OT02-4 Appearance of the gaskets after irradiation of 1.9 MGy at dose rate of 1.9 x 105 R/h.- S3-OT02-5 Appearance of the gaskets after irradiation of 35.7 MGy at dose rate of 1.57 x 106 R/h.- S3-OT02-6 Helium leak test results of the gaskets after irradiation under dose rate of 1.57 x 106 R/h.- S3-OT02-7 Hardness changes of the gaskets from the tightening torque viewpoint as a function of

accumulation dose.

305 -

JAERI-Tech 99-003

Reference Data Sheet / S3-OT02-1

(a) Overview of the EPDM (left) and AU (right) gaskets before irradiation.

(b) Layout of the gaskets in the irradiation cell.Front, 1.9 x 105 R/h; behind, 2.4 x 104 R/h.

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Overview and dimensions of the gasket. Gasket type, J1S-V.

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Reference Data Sheet /S3-OT02-3

Appearance of the gaskets after irradiatioa of 12 MGy under dose rate of 2.4 x 104 R/h.Accumulation dose of 12 MGy corresponds to irradiation time of 5,000 hr.Upper, middle and bottom : left, EPDM; right, AU.

- 308 -

JAERI-Tech 99-003

Reference Data Sheet / S3-OT02-4

Appearance of the gaskets after irradiation of 1.9 MGy under dose rate of 1.9 x 105 R/h.Accumulation dose of 1.9 MGy corresponds to irradiation time of 1,000 hr.Upper, middle and bottom : left, EPDM; right, AU.

309 -

JAERI-Tech 99-003

Reference Data Sheet / S3-OT02-5

Appearance of the gaskets after irradiation of 15.7 MGy under dose rate of 1.57 x 106 R/h.Accumulation dose of 15.7 M Gy corresponds to irradiation time of 1,000 hr.Upper, middle and bottom : left, EPDM; right, AU.

- 310 -

JAERI-Tech 99-003

Reference Data Sheet / S3-OT02-6

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- 311 -

JAERI-Tech 99-003

Reference Data Sheet /S3-OT02-7

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1 0 "

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10"

10'

103

102

10'

10"'

io-2

10-3

1 0 6

10"9

io- ' 2

i o - "

1 0 "

8X

-r

+"

+

•f

•?•

-b

J

i-

t"

7

T

mm9 *t

9

7

if

ifa

9 h

i]

•y

y -f>l

A 9 P

/

i A (.

sB §"

EP

T

G

M

k

h

da

d

c

m

un

Pf

a

(&)

5 o ^/cL. 1 eV

i i i t f l u ®f|S (i CODATA ffl 1986 ^jf*g

2. K4IE(iiig<a, / ., h, T- 'U,

3. barf±,

r, bamfci

N(=10bdyn)

1

9.80665

4.44822

kgf

0.101972

1

0.453592

lbf

0.224809

2.20462

1

tt (S 1 Pa - s (N-s /m 2 )=10P(#TX-) (g / ( cm-s ) )

lm 2 / s=10 < St (x h - ^

If

-h

MPa( = 10bar)

1

0.0980665

0.101325

1.33322 x 10"4

6.89476 x 10"J

kgf/cm2

10.1972

1

1.03323

1.35951 x 10-3

7.03070 x 10-2

a tm

9.86923

0.967841

1

1.31579 x 1 0 3

6.80460 x 10-!

mmHg(Torr)

7.50062 x 103

735.559

760

1

51.7149

lbf/in !(psi)

145.038

14.2233

14.6959

1.93368 x 10"'

1

X

1

i±

*

J( = 10'erg)

1

9.80665

3.6 xlO6

4.18605

1055.06

1.35582

1.60218 x 1 0 "

kgf-m

0.101972

1

3.67098 x 10 s

0.426858

107.586

0.138255

1.63377 x 10'20

kW- h

2.77778x10''

2.72407 x 10-'

1

1.16279 x 10-'

2.93072 x 10 -

3.76616x10"'

4.45050 xlO"26

cal(ttMffi)

0.238889

2.34270

8.59999x10'

1

252.042

0.323890

3.82743 xlO"20

Btu

9.47813x10"'

9.29487 x 10"3

3412.13

3.96759 x 10"3

1

1.28506 x 10"'

1.51857 x 10-"

ft • Ibf

0.737562

7.23301

2.65522 x 10'

3.08747

778.172

1

1.18171 x 1 0 "

eV

6.24150 x 10"

6.12082x 10"

2.24694 x 102s

2.61272x 10"

6.58515 x 102'

8.46233 x 10"

1

leal = 4.18605 J(ItMffi)

= 4.I84J (jBWt-?)

= 4.1855 J (15 °C)

= 4.1868 J (BISIS

= 75 kgf-m/s

= 735.499 W

Bq

3.7 x 10'°

2.70270 x 10-"

1

Gy

1

0.01

rad

100

1

C/kg

2.58 x 10"

R

3876

1

Sv

1

0.01

rem

100

1

26 0514)

HIGH GAMMA-RAYS IRRADIATION TESTS OF CRITICAL COMPONENTS FOR ITER (INTERNATIONAL THERMONUCLEAR EXPERIMENTAL REACTOR) IN-VESSEL REMOTE HANDLING SYSTEM