F. Peauger - CEA DSM IRFU SACM 18 May 2008

CA

.BH

B 0

400

CA

.SN

H 0

110

CA

.SN

I 012

0

CA

.VVS

010

0 CA

.DH

G/D

VG 0

130

CA

.VVS

020

0C

A.M

TV 0

215

CA

.BPM

022

0C

A.D

HG

/DVG

022

5

CA

.SN

G 0

230

CA

.SN

G 0

250

CA

.BPM

024

0

CA

.BPM

026

0

CA

.BPM

031

0

CA

.BPM

038

0

CA

.DH

G/D

VG 0

245

CA

.DH

G/D

VG 0

265

CA

.DH

G/D

VG 0

320

CA

.DH

G/D

VG 0

385

CA

.DH

B/D

VB 0

270

CA

.ICT

0210

CA

.VVS

030

0

CA

.QFD

035

0

CA

.QFD

036

0C

A.Q

DD

035

5

CA

.BPR

037

0

CA

.BPM

041

0CA

.MTV

039

0

CA

.MTV

042

0C

A.V

VS 0

500

CA

.SD

H 0

340

CA

.DH

B/D

VB 0

230

CA

.DH

B/D

VB 0

250

ACS 0230 ACS 0250 ACS 0270

DUM

0450

TBTS

ITL

CA

.MTV

012

5(v

irtua

l cat

hode

)

CA

.FC

U 0

430

#1 – CTF3 Committee: CALIFES STATUS

F. Peauger - CEA DSM IRFU SACM 18 May 2008

•Intense activity since several months

•Alignment is more difficult than expected:

Future plans: Before week 20: vacuum break by CERN

Week 20 and 21: (CEA team at CERN)- disassembly of elements between gun and LIL1 including BPM n°1 for

realignment (errors found between CERN and CEA alignment data)- disassembly of all BPM-DHG/DVG, MTV supports for alignment

investigation

Objective: sealing and vacuum pumping of the whole linac end of w21

→Need close support - from CERN Vacuum group - from CERN Alignment team during 15-16 and 19-21 May

Beam line installation (including laser transport line) and Alignment

ICT 0210 MTV 0215

Electron beam

Gun LIL1

F. Peauger - CEA DSM IRFU SACM 18 May 2008

•The bakeout of the gun must include the RF waveguides and can include some elements after the valve if necessary

Photo-injector Bakeout

Attention: Temperature must be limited around MTV 0215

MTV 0215

Valve VVS 0200 RF Gun cavity

F. Peauger - CEA DSM IRFU SACM 18 May 2008

Command-Control , BPM and Laser system

Command/Control:Intense activity on C/C for the three next months particularly for BPM

BPM:Electronic chassis installed in CLEX-G (see picture)

Laser system:Energy per pulse two low

→ not possible to work on the pulse shaping

Beam delivery from Laser room to CLEX-A laser table validated (transport under vacuum along 60 meters)

F. Peauger - CEA DSM IRFU SACM 18 May 2008

Circular phase shifter

Mode convertor: Brazing test on a scale one prototype succeeded

→ OK to start the two final convertors

→ scheduled for end of 2008

Circular sliding waveguides:

→ non conformity (turning) before brazing for few pieces

→ negotiations with supplier

F. Peauger - CEA DSM IRFU SACM 18 May 2008

High Voltage Modulator

Second step of the acceptance test with PPT

High power load, bidirectional coupler, Low Level RF system including Peak Power meter and mixer to measure more precisely the voltage ripple and pulse-to-pulse stability (Jitter)

Ripple = ±0.3%

Jitter = ± 0.2%(Measured at 270kV, 280A, 32MW, 3.3Hz at sat.)

→ Acceptable values for CALIFESSuccessful collaboration

Before PFN tuning

After PFN tuning