Download - CA.BHB 0400
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