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Status of the JULE-PSI project

B. Unterberg, S. Kraus, A. Kreter, L. Scheibl and B. Schweer

Institute for Energy and Climate Research - Plasma PhysicsForschungszentrum Jülich, EURATOM Association

D- 52425 Jülich, GermanyPartner in the Trilateral Euregio Cluster

2nd International Workshop on Plasma Material Interaction Facilities for Fusion Research (PMIF 2011),

Forschungszentrum Jülich, Germany, September 19-21, 2011

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 2

New PWI research programme at FZJ:Plasma wall interactions in nuclear environment

Complementary to ongoing PWI research on toroidal confinement devices

An integrated concept to test neutron irradiated and toxic plasma facing materials (PFMs) under high heat loads and plasma exposure in Jülich

Thermo-mechanical properties of PFMs (fatigue, shock resistance)

PWI processes (Erosion, fuel retention and dust formation)

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 3

PWI with Be and neutron irradiated PFMs at FZJ - Elements of the integrated concept

A linear plasma device inside a Hot Cell (JULE-PSI) with integrated surface analysis station for toxic and activated materials (T- retention, surface composition and morphology, mainly based on laser techniques)

A non-nuclear twin outside the Hot Cells, developed from a pilot experiment (PSI-2 Jülich)

High heat load e- beam test facility inside Hot Cell (JUDITH-1 upgrade)

High heat load e- beam test facility for large components outside Hot Cell (JUDITH-2) but with Be handling capability

Hot Material Laboratory (Hot metallography, Laser profilometry, thermo physics lab, scanning electron microscopy in Hot Cell environment)

Dedicated modelling activities (ERO, B2-Eirene)

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 4

JULE-PSI –integral part of the TEC programme

New challenges MAGNUM-PSIPILOT-PSI

JULE-PSI(inside Hot Cell)PSI-2 Jülich

VISION I(inside T laboratory)

Reactor like divertor conditions (steady state loads)

YES, divertor simulator NO, but reactor like plasma fluence and ion energies

NO

Reactor like transient heat loads

YES, pulsed plasma source under development

YES, JUDITH (electron beam facility inside Hot Cell), laser irradiation

NO

Tritium NO no T- plasma but moderate T handling capabilities

YES

Toxic materials (Be)

NO YES YES

Neutron irradiated materials

Simulation of neutron damage by ion beam irradiation planned

YES Limited to moderately activated samples

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 5

Refurbishment of the Hot Material Lab Conceptual Layout of the Experimental Hall and the

Hot Cell Development of target analysis and exchange

chamber – prototype at PSI-2 Jülich

Outline

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 6

Refurbishment of Hot Material Lab finalized(5 Mill Euro, stimulus package)

New ventilation system (HML-3: upgrade for future requirements with JULE-PSI)

General improvements of the building (thermal insulation, fire protection, electrical systems)

0m 5m 10m

HML 3

HML 1

HML 2

Hot Cells

Controlled Area

Access Area

Offices

JULE-PSI lab

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 7

Floor plan HML-3, ground level

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 8

Floor plan HML-3, level 1

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 9

Side view HML-3

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 10

Cross section HML-3

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 11

Floor plan Hot Cell for JULE-PSI

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 12

Shielding requirements for hot cell

license for handling radioactive substances in HML-3 (multiples of the free handling limit)

(Tritium (contained) 2.5x10^4)

Other radioactive substances (contained)

10^8

Other radioactive substances (any, non-gasous)

10^6

Shielding shall be adequate to fully use handling limits 20 cm wall thickness for Pb Amounts to 565 to (50000 bricks)

Material already recovered from deconstruction work at FZJ

Contact to companies for detailed design established

Free handling limit (StSVo)

radionuclide Activity (Bq)

(T 10^9)

W-181 10^7

W-185 10^7

W-187 10^6

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 13

Target analysis and exchange chamber

Target manipulatorExchange and Analysis chamber

Plasmasource

PSI-2 Jülich with target chamber

Status of PSI-2 Jülich: cf. talk by A. Kreter

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 14

Plasma Chamber

Valve 1

Valve 2

carrier

Target manipulator

Turbo pump

Turbo pumps

Target Exchange and Analysis Chamber

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 15

Target manipulator

Plasma chamber

loading of targets

3x support for bearings

Laser entrance

QMA (LIA)

observation (e.g. LIBS)

Glow Discharge OpticalEmission Spectroscopy→ see talk by C.C. Klepper

Target Exchange and Analysis Chamber

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 16

Head of target manipulator

cooling

electrical connections

rotatable target holder

gas inlet

cone-shaped manipulator head

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 17

Example of laser based surface analysis

LIBS – Laser Induced Breakdown Spectroscopy

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 18

Tangential viewTarget

An ITER like coaxial observation system has been designed and procured for TEXTOR application

Laser induced break down spectroscopy and laser induced ablation spectroscopy at TEXTOR

Alexander Huber, FZJ

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 19

Principle set-up of laser basedsurface diagnostics at JULE-PSI

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 20

Guidance of laser beam at JULE-PSI

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 21

Guidance of laser beam at JULE-PSI

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 22

14 16 18 20 22 24 26 28

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50

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counts (blue) counts (green) counts (red)

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distance (mm)

Intensity profile RGB

Experimental results on laser-induced plasma plume

Notch filter

Blocks λ: 670 – 805nm

• Plasma plume extension 3.0 mm• The laser plasma lifetime 200ns

Laser Direction 2.71 mm

Plasma plume size

2.7 mm

Collects the light emitted from the plasma plume

789.0µ 789.5µ 790.0µ 790.5µ

0.00

0.05

0.10

Biased: 2.4 voltsNotch Filter

volt

s

time (sec)

FWHM approx 140 ns

Plasma Life time

Institute of Energy and Climate Research – Plasma Physics | Association EURATOM – FZJSeptember 19, 2011 No 23

Further technical development at the pilot experiment PSI-2 Jülich (cf. talk by A. Kreter) Commissioning of target exchange chamber Test of disk shaped cathode

Increase of connected power for HML-3 Design of vacuum chamber and magnetic field coils for

JULE-PSI, concept development CODAC Preparation of a site for construction and testing of

JULE-PSI (outside HML)

Outlook:Next steps for JULE-PSI