status of ctf3
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1CTF3 Collaboration Board 22.6.2007
Status of CTF3
G.Geschonke CERN/AB
2CTF3 Collaboration Board 22.6.2007
Collaborating institutesCountries Funding Agencies Laboratory
CERN CERNFINLAND Helsinki Inst of Phys (HIP)
CEA DAPNIA SaclayLAL
LAPPLURE
INDIA* Indian DAE RRCAT, IndoreITALY INFN LNF
PAKISTAN * PAEC NCPBudker Inst (BINP)
IAPDubna JINR
CIEMATUPCIFIC
Uppsala Univers ityTSL
SWITZERLAND Paul Scherrer Inst (PSI)TURKEY Ankara Univ Group (2)
Northwestern Univ Illinois (NWU)SLAC
SWEDENSwedish Research Council
Wallenberg Foundation
USA DOE
CNRS/IN2P3FRANCE
RUSSIA
SPAINMinistry of Education &
Science (MEC)
* India and Pakistan have not signed the CTF3 MoU, but have an agreement with CERN for the development of novel accelerator technologies
Discussions with : Iran, UK (Cockcroft Institute), JLAB, EPFL, INFN Milan
17 membersinvolving 22 Institutes
Past collaboration with RAL within PHIN
Draft MoU Addendum with J.Adams Institute London
3CTF3 Collaboration Board 22.6.2007
DL
CLEX 2007-2009building in 2006
2004 2005
Present status
2006
Thermionic gun
CR
TL2 200730 GHz production(PETS line)and test stand
Photo injector / lasertests from 2006 2007
D FFD
D F D
D F D D F D
D F D
DF DF DF DF DF DF DF DF DF
D F D
F DF D
D FFFDD
D F DD F D
D F DD F D D F DD F D
D F DD F D
DF DF DF DF DF DF DF DF DF DFDF DF DF DF DF DF DF DF DF DF DF DF DF DF DF DF
D F DD F D
F DF DF DF D
Linac
2007
Beam into CLEX in 2008
Beam up to here
Combiner Ring being commissioned
?
CLIC-ACE, 21.6.2007Frank Tecker Slide 4
Combiner ring - latest status
We make up to a few 100 turns!
Nominal isochronous optics RF injection short RF pulse in deflector that it’s only seen by the beam at injection.
Switching on the SHBS (2 out of 3)
We got immediately the sameTransmission in CR!
CLIC-ACE, 21.6.2007Frank Tecker Slide 5
Combiner ring - latest status
Latest results from last week … we recombine (factor 2)!
280 ns 280 ns
Recombination – factor 2
Second turn of second pulseand partly third turn offirst pulse
nominal isochronous optics energy ~ 115 MeV RF injection (2nd RF deflector off – so far) set up of the path length in CR with wiggler
6CTF3 Collaboration Board 22.6.2007
start according to schedule,many operational problems. (controls, magnets,.....).
J an Feb Mar
Wk 1 2 3 4 5 6 7 8 9 10 11 12 13
Mo 1 8 15 22 29 5 12 19 26 5 12 19 26
Tu
We
Th
Fr
Sa
Su
Apr May J un
Wk 14 15 16 17 18 19 20 21 22 23 24 25 26
Mo 2 9 16 23 30 7 14 21 28 4 11 18 25
Tu
We
Th
Fr
Sa leak
Su
J ul Aug Sep
Wk 27 28 29 30 31 32 33 34 35 36 37 38 39
Mo 2 9 16 23 30 6 13 20 27 3 10 17 24
Tu
We
Th
Fr
Sa
Su
Oct Nov Dec
Wk 40 41 42 43 44 45 46 47 48 49 50 51 52
Mo 1 8 15 22 29 5 12 19 26 3 10 17 24
Tu
We
Th
Fr
Sa
Su
2007 - CTF 3 - Schedule
CTF3 under access control for HV and RF
conditionning
CERN closed
CTF3 with beam
CTF3 closed with keys for
Hardware tests
CTF3
SHUTDOW
N
CR open for installation
Beam in PETS
15th May 2007
Tests BI
G. Frid
Eastr
May
Ascen
Whit.
J eune G.
CTF3 stop with beam in PETS
Start conditioning
Tests CO + PO
Start MKS in diode
Machine open
Start with beam in Linac only
WaterInstallation CR
PAC 07
See TIC 216 for all works
New building 2012 for Streak camera
Installation of all BPI in DL and CRInstallation of bunch phase monitor
Installation of the streak camera in lab 2012Installation of water and cabling for TL2
Installation TL2 line
Test RF gun in CTF2 with MKS14
CTF3 stop with beam in CR
Start with beam in Combiner Ring
Re-start with beam in Combiner Ring
Run 1
Run 2
Run 3
No 30 GHz production
Beam circulated in CR, injected with RF, no recombination yet
7CTF3 Collaboration Board 22.6.2007
30 GHz RF production
CTF3 linac
PETs branch
High-gradient test stand, CTF2
High-power transfer line
Two-beam 30 GHz power production in CTF3 operation for 30 GHz now routine,
largely automatic.Supervision from CCC24 hour operation / night operation
Linac Beam
2007:● 30 GHz conditioning has started as foreseen.● 12. May Vacuum leak in PETS line. ● Repaired successfully, operation resumed on 23. May. PETS was not allowed by safety. ● 30 GHz operation Resumed Friday 15.6● operate with 5 Hz, then gradually increase frep
E0
ttfill
steady state
E0 /2
Ebea
m
400
300
-5
0
5
time (nsec)
P/P (%)
P1050Central
=107.5MeV/c
-50
5600
700
800
900-10-5
05
10-1
-0.5 0
0.5 1
P/P (%)
Ppeak
=108.5 MeV/c,
PFWHH
=11.68%
600700
800900
0 1 2 3 4 5
IBeam
(A)
time (nsec)
600700
800900
108
110
112
Ppeak
(MeV/c)
time (nsec)600
700800
9001 2 3
PFWHH
(%)
200
100
Transient
Steady state
P/P
(%
) Time (ns)
8CTF3 Collaboration Board 22.6.2007
Present status
Combiner Ring finished, Commissioning in progress.
Preparations for TL2 and TL2’ Optics finished, detailed layout close to completion Procurement of components has started: support infrastructure, vacuum chambers ( India, industry), power supplies, magnets (available/Lure/Celsius/Ciemat), beam diagnostic equipment (CERN, INFN, LAPP) tail clipper (CIEMAT,CERN)
Installation in July, August and from November onwards.
Target to send beam into CLEX after winter shut-down ~ April 2008
9CTF3 Collaboration Board 22.6.2007
CLEX building
Construction on schedule, lower level finished, equipment is being installed.klystron gallery will be finished in a few weeks. Full electrical power will only be available from end October ,meanwhile provisional installation with limited power
June 2006
31.8.2006
25.10.2006
existing building
D FFD
DF
F
D F D
D F D D F D
D F D
DF DF DF DF DF DF DF DF DF
D F D
F DF D
D FFFDD
DF
FDD
FF
FF
D F DD F D
D F DD F D D F DD F D
D F DD F D
DF DF DF DF DF DF DF DF DF DFDF DF DF DF DF DF DF DF DF DF DF DF DF DF DF DF
D F DD F D
F DF DF DF D
42.5 m
8 m
2m
D FFD
DF
F
D F DDUMPD F D
F
FD
ITB
1.85m
CALIFES Probe beam injector
LIL-ACSLIL-ACSLIL-ACSD F D
D F D
DFDUMP
0.75
1.4m
1
DUMP
22.4 mTBL
2.5m
Transport path
DUMP
DUMP 22 m
2.0m
DF DF DF DF DF DF DF DF
3.0m3.0m6 m
D F D
F DF D
16.5 mTBTS
16 m
TL2’
42.5 m42.5 m
8 m8 m
2m2m
D FFFDD
DF
FDD
FF
FF
D F DD F DDUMPD F DD F D
F
FD
F
FD
F
FD
ITB
1.85m1.85m
CALIFES Probe beam injector
LIL-ACSLIL-ACSLIL-ACSLIL-ACSLIL-ACSLIL-ACSD F DD F D
D F DD F D
DF DFDUMP
0.75
1.4m1.4m
11
DUMP
22.4 m22.4 mTBL
2.5m2.5m
Transport path
DUMP
DUMP 22 m22 m
2.0m2.0m
DF DF DF DF DF DF DF DFDF DF DF DF DF DF DF DF DF DF DF DF DF DF DF DF
3.0m3.0m3.0m3.0m6 m6 m
D F DD F D
F DF DF DF D
16.5 m16.5 mTBTS
16 m16 m
TL2’
Test Beam Line TBL
Jan 2007
10CTF3 Collaboration Board 22.6.2007
Ongoing work for CLEX
42.5 m
8 m
2m
D FFD
DF
F
D F DDUMPD F D
F
FD
ITB
1.85m
CALIFES Probe beam injector
LIL-ACSLIL-ACSLIL-ACSD F D
D F D
DFDUMP
0.75
1.4m
1
DUMP
22.4 mTBL
2.5m
Transport path
DUMP
DUMP 22 m
2.0m
DF DF DF DF DF DF DF DF
3.0m3.0m6 m
D F D
F DF D
16.5 mTBTS
16 m
TL2’
42.5 m42.5 m
8 m8 m
2m2m
D FFFDD
DF
FDD
FF
FF
D F DD F DDUMPD F DD F D
F
FD
F
FD
F
FD
ITB
1.85m1.85m
CALIFES Probe beam injector
LIL-ACSLIL-ACSLIL-ACSLIL-ACSLIL-ACSLIL-ACSD F DD F D
D F DD F D
DF DFDUMP
0.75
1.4m1.4m
11
DUMP
22.4 m22.4 mTBL
2.5m2.5m
Transport path
DUMP
DUMP 22 m22 m
2.0m2.0m
DF DF DF DF DF DF DF DFDF DF DF DF DF DF DF DF DF DF DF DF DF DF DF DF
3.0m3.0m3.0m3.0m6 m6 m
D F DD F D
F DF DF DF D
16.5 m16.5 mTBTS
16 m16 m
TL2’
Instrumentation Test Beam Linenot presently funded(FP7 GADGET proposal)
CEA Dapnia Saclay overall responsibilityCERNCEA laser beam line, laser beam conditioningLAL RF gun for photo injector
Uppsala University Two Beam Test StandCERN PETS and Accelerating structure
CIEMAT magnet movers, PETS prototype,(+ series ????), PETS tank (series ???)UPC & IFIC : BPM development + electronics (series ???)CERN overall responsibility, optics, RF equipment, diagnostics, infrastructure, quadrupoles ???
Pakistan: stainless steel vacuum components + ???Iran: RF + Beam dynamics simulations
11CTF3 Collaboration Board 22.6.2007
15 MV/mcompression
17 MV/macceleration
17 MV/macceleration
LIL sections
beam dump
focusing coils
K
quadrupoles
Laser RF pulse compression
2 x 45 MW
10 20 25 25
profile monitor
position monitor
steerer
rf gun cavity spect. magnetRF deflector
Probe Beam
C A L I F E S A. Mosnier, CEA Dapnia
200 MeVbunch charge 0.5 nCnumber of bunches 1 - 64
Planning foresees everything to be installed by April 2008 one LIL section radioactive waveguide components missing
12CTF3 Collaboration Board 22.6.2007
Two Beam Test Stand
Drive Beam
Probe Beam
Spectrometers
PETS
Accelerating structure
V.Ziemann, Uppsala University
Accelerate Probe Beam with 30 GHz power from Drive Beam
Diagnostics for energy, transverse kick due to RF breakdown
everything to be installed by April 2008
13CTF3 Collaboration Board 22.6.2007
Two Beam Test Stand
14CTF3 Collaboration Board 22.6.2007
Test Beam Line TBL
100 cm 25 cm15 cm
QuadBPM
PETS
I on PumpRF-Load
Mover
100 cm 25 cm15 cm
QuadBPM
PETS
I on PumpRF-Load
Mover
Decelerate to about 50 % beam energyTotal power produced in 16 PETS: 2.5 GW
S. Doebert, CERN
5 MV/m deceleration (35 A)
165 MV output Power
Demonstrate beam stability under deceleration
standard cell, 16 total
PETS design
42.5 m
8 m
2m
D FFD
DF
F
D F DDUMPD F D
F
FD
ITB
1.85m
CALIFES Probe beam injector
LIL-ACSLIL-ACSLIL-ACSD F D
D F D
DFDUMP
0.75
1.4m
1
DUMP
22.4 mTBL
2.5m
Transport path
DUMP
DUMP 22 m
2.0m
DF DF DF DF DF DF DF DF
3.0m3.0m6 m
D F D
F DF D
16.5 mTBTS
16 m
TL2’
42.5 m42.5 m
8 m8 m
2m2m
D FFFDD
DF
FDD
FF
FF
D F DD F DDUMPD F DD F D
F
FD
F
FD
F
FD
ITB
1.85m1.85m
CALIFES Probe beam injector
LIL-ACSLIL-ACSLIL-ACSLIL-ACSLIL-ACSLIL-ACSD F DD F D
D F DD F D
DF DFDUMP
0.75
1.4m1.4m
11
DUMP
22.4 m22.4 mTBL
2.5m2.5m
Transport path
DUMP
DUMP 22 m22 m
2.0m2.0m
DF DF DF DF DF DF DF DFDF DF DF DF DF DF DF DF DF DF DF DF DF DF DF DF
3.0m3.0m3.0m3.0m6 m6 m
D F DD F D
F DF DF DF D
16.5 m16.5 mTBTS
16 m16 m
TL2’
15CTF3 Collaboration Board 22.6.2007
TBL
Concept clear now.
Spain is working on: PETS prototype incl. vacuum tank (CIEMAT) Beam position monitors (IFIC Vaencia) BPM electronics (UPC)
In 2008 only one PETS will be installed.Series in 2009
still open: Series production of PETS (16 in total) and BPM + electronics
CIEMAT
16CTF3 Collaboration Board 22.6.2007
Photo Injector
Solenoid
RF inputPhotocathode
Phase 1:off-line testing from 2007
Phase 2:Gun in CTF3: earliest spring 2008 ?????
smaller emittance, faster phase coding, no “satellite bunches”
Cs2Te photo cathode3% QE40 hours life timepulse train: 1.5 s,charge per bunch: 2.33 nCbunch spacing 0.67 nsnumber of bunches: 2332
diode pumped Nd:YLF laser10 J IR / bunch 0.37 J UV on cathode /bunch
LAL CERN RAL
17CTF3 Collaboration Board 22.6.2007
Photo Injector
Present status:
RF gun being built, ready end 2007 ??
Laser at CERN, needs to be finished (full system has never worked, no phase coding, no control system, no feedbacks.....)
RAL does not collaborate any morestrong involvement from CERN, INFN Frascati and Milan
Laser is needed also for CALIFES injector !
18CTF3 Collaboration Board 22.6.2007
12 GHz
Decision to change CLIC structure development from 30 GHz to 12 GHz
For 30 GHz: bunch repetition frequency in Linac: 1.5 GHz increase by x2 in DL x5 in CR 15 GHzFor 12 GHz: bunch repetition frequency in Linac: 1.5 GHz increase by x2 in DL x4 in CR 12 GHz
small circumference change in CR can be accomplished with wiggler
no effect on hardware
30 GHz structure programme continues for the moment 12 GHz PETS in TBL 12 GHz PETS and accelerating structures in Two Beam Test Stand
smaller nominal beam current: can be increased by higher current in linac and higher RF power (shorter pulse)
Effect on CTF3:
CTF3 Collaboration Board 22.6.2007
19
Future Testing Program (S.Doebert)
2007: Study Parameter Space at 30 GHz and testing of real structures at 11 GHz (focus on copper structures)
2008: Focus on two main geometries, develop damping, optimize structure
2009: CLIC prototype structure
2010: Longer term testing and better statistics
2007 2008 2009 2010 sum
30 GHz 5 3 0 0 8
12 GHz 0 1 4 4 9
11.4 GHz 2 4 4 4 14
Stand alone at CERN
0 0 8 8 16
sum 7 8 16 16 47
Number of tests (optimistic)
CTF3 Collaboration Board 22.6.2007
20
Tentative CERN x-band R&D program (S.Doebert)
When Structure Technology Lab
Dec 2007 CLIC_vg1 quadrants, damped
CERN
T26vg3MC disks, brazed, undamped
SLAC/KEK
March 2008 CLIC_vg1 quadrants, undamped
CERN
T26vg3MC quadrants, undamped
CERN/SLAC/KEK
June 2008 CLIC_vg1 disks, brazed,undamped
CERN
T26vg3MC disks, brazed,damped
CERN/SLAC/KEK
2009 CLIC prototype
fully featured, best technology
CERN/SLAC/KEK
CTF3 Collaboration Board 22.6.2007
21
Efficiency milestones (S.Doebert)
100 MV/m loaded, 10-6 break down rate, qb=4*109, 8 rf period bunch spacing, P*pl/C = 18 Wue
P = 65 MW; 297 ns nb = 311
P = 70 MW; 295 ns nb = 359
P = 111 MW; 102 ns nb = 66P = 102 MW; 113 ns nb = 93P = 134 MW; 104 ns nb = 27
done
12/2007
6/2008
12/2007
2009
22CTF3 Collaboration Board 22.6.2007
Structure testing
30 GHz testing at CERN will continue for a while.
CTF3 can only produce 12 GHz. Test of PETS only possible at CTF3 (Two Beam Test Stand)
Collaboration with SLAC and KEK on structure development / fabrication as well as testing at x-band (11.4 GHz).
Stand-alone RF source at 12 GHz at CERN is mandatory.
Several labs in Europe interested as well (PSI, INFN, Elettra)
11.9942 GHz, 50 MW peak, 1.5 μs, 50 Hz
Budget: 3.5 MSFr, could be operational in 2009
CTF3 Collaboration Board 22.6.2007 23
A possible schedule
2007 2008 2009
6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7
Klystron Price Enquiry
Finance Committee Approval
Order Klystron
Klystron design
1st Klystron Manufacture and Delivery
2nd Klystron Manufacture and Delivery
Modulator Price Enquiry
Finance Committee Approval
Modulator Manufacture and Delivery
Preparation of Modulator area
Procurement and preparation of auxiliaries
Preparation of test area
Procurement and manufacture of test area equipment
Low level RF
START TEST STAND COMISSIONING (single klystron)
E.Jensen
24CTF3 Collaboration Board 22.6.2007
CLIC resources from CERN
2008 2009
2010
Total
Material budget(kCHF)
Present MTP 3485 3485
3485
10455
Additional LTP (CLIC-PLO/06-17 and White Paper) 4000 4000
4000
12000
12 GHz power test stand and structure tests 1050 1850
600 3500
Total additional (to present MTP plans) resources 5050 5850
4600
15500
Total needed resources (to be included in future MTP)
8535 9335
8085
25955
Man-Power(FTE)
Present MTP 30.5 28 26.5 85
Additional LTP (CLIC-PLO/06-17 and White Paper) 20 20 20 60
12 GHz power test stand and structure tests 3 3 3 9
Total additional (to present MTP plans) resources 23 23 23 69
Total needed resources (to be included in future MTP)
53.5 51 49.5 154
25CTF3 Collaboration Board 22.6.2007
Status of contributions15/12/2006
manpower my cost kSFr manpower my cost kSFr manpower cost m*y m*y [kCHF] material total m*y m*y [CHF] material total
Addendum signed / Protocol with CERN*
CERN totals 100.00 56,000 125.00 14,815 225.00 70,815 29 3,225 36.0 4,314
Helsinki Institute of Physics (HIP)
specialist in micro machining technologies for CLIC structure developments 3.00 3.00 1.3 45establish dedicated project for development of technology with industrial and academic partners
CEA Probe Beam linac 30.00 1,950 30.00 1,950CNRS IN3P3 23.00 450
LURE 32 quadrupolesLAL Thermionic guns (15 my = 2.25 MCHF) 15.00 probe beam photo gun 3.00 300LAPP BPM read-out electronics 5.00 150 4.8 63
India * TL2 design, 6Alu vac chambers for TL2Dipole magnets for TL2
INFN Delay Loop 25.00 4,000 33.00 4,900 7 568 7.0 1,190vacuum chamber TL1 and CR 4.00 900CTF3 commissioning, operation 4.00
Pakistan NCP * 80011 quadrupoles, 26 sextupoles 270 270future: more magnets as required according to the same conditions.
IAP 30 GHz power source 1,024 0.00 1,024Manpower and material , ISTC 227k$ included
JINR Dubna Manpower for automatic conditioning 114 114
Spain Ciemat 15 qadrupoles for TBL + precision tables 4.00 2,000 272 8402 Septa for CRExtraction kicker for CRHV pulser for kicker32 corrector magnets for CRPETS design
UPC / IFIC Contribution to BPM design for TBL 4.00 2,000Sweden Uppsala
Univ. Preliminary phase participation 1.50 3.00 2,650 1.3 107Phase monitor 1.50 150Phase monitor cont. 200Two Beam Test Stand 2,300
TSL Celsius magnets 150 150PSI Modulator components 200 200 200
Ankara University manpower for CTF3 operation 0.25 5.00 5.25 0.5 1.0one accelerating structure 100 3.00 350beam loss monitor 100 50total manpower 2.00 1.00RF pick-up for bunch length 100
SLAC electron gun triode (long term loan) 320 3.00 320injector design and commissioning 3.00
2005 2006totals<2004+pledged
Northwestern University Illinois
pledged for 2005-2009spent up to end 2004
Budker institute of Nuclear Physics
(BINP) Novosibirsk
26CTF3 Collaboration Board 22.6.2007
Open work packages for CTF31. RF equipment for Probe Beam (Califes)1.1 klystron for Califes 3 GHz, 45 MW, pulse length 5.5 ms1.2 waveguide components for Califes: WR 284, LIL-type flanges, peak power 100 MW, pulse length 5.5 ms1.2.1.various line components: straight lines, bends, directional couplers, RF loads, operation under UH Vacuum1.2.2.special waveguide components:
one 4.5/1.9 dB splitter one variable waveguide attenuator, 0.5 to 20 dB attenuation,peak power 10 MW, operation under SF6
(Being ordered by CERN)
2. RF equipment for CTF3 operationThe 3 GHz klystrons which reach the end of their lifetime have to be repaired or eventually replaced by new ones if they cannot be repaired any more. We estimate that on average 1.5 to two klystrons need to be replaced every year. The klystrons are rated at 45 MW peak power at an RF pulse length of 5.5 ms and a repetition rate of 100 Hz.
3. Vacuum equipment:Vacuum pumping equipment, instrumentation and vacuum chambers have to be provided for Transfer Line TL2 and TL2’, TBL and Califes: :3.1. 60 ion pumps (60 l/s) 30 HV pump power supplies (compatible with CERN vacuum control system), 3.2. 10 vacuum gauges 3.3. 3 mobile turbo pumps 3.4. 20 shielded pumping ports according to existing drawings 3.5. 3 vacuum valves with RF shielding 3.6. 20 Bellows with RF shielding according to existing drawings (Being ordered by CERN)
27CTF3 Collaboration Board 22.6.2007
Open work packages for CTF3
4. Material for Test Beam Line (TBL)4.1. 16 quadrupoles for TBL4.2. 16 CLIC power extraction and transfer structures (PETS) modules. A prototype is being built by Spain. The series production is still open4.3. 16 vacuum tanks for PETS structures. A prototype is being built by Spain, the series is still open. 4.4. 16 beam position monitors (BPM). A prototype is being developed and built by Spain, the series is still open. 4.5. 16 front end analogue electronics for the BPMs(4.4). A prototype is being developed and built by Spain. The series is still open.4.6. 16 BPM digital electronics. (Preferably use LAPP electronics )4.7. analogue front electronics for 12 GHz signal acquisition in TBL4.8. digital read-out electronics for 12 GHz RF signals ( see 4.7 above) ( CERN has started development)4.9. 32 power loads for 12 GHz RF and 16 directional couplers
5. Equipment for additional S-band RF power installationMost of the component needed for a modulator has been provided by PSI. This could be used for an additional S-band power sources to power two additional RF accelerating structures in the CTF3 Drive Beal linac. 5.1 A 45 MW klystron is required
28CTF3 Collaboration Board 22.6.2007
Open work packages for CTF3
6. Stand-alone X-band power sourceFor CLIC accelerating structure developments a stand-alone power source is required which allows to enhance the CLIC accelerating structure testing capacity considerably.6.1. X-band klystron, peak power 50 MW, RF pulse length 1.5 ms. 6.2. Modulator for the klystron (6.1), 500 kV
7. 12 GHz RF components: High-power X-band RF components including: flanges, bends, twists, directional couplers, hybrids, splitters, variable power dividers, windows, valves, loads etc. Some of these components will be adapted from SLAC and KEK designs and others will have to be designed from scratch. The components must be produced in quantities of approximately ten parts each for both the Two Beam Test Stand and
8. 12 GHz signal acquisition system The 12 GHz RF pulses from both PETS and accelerating structures will need to be monitored by a fast acquisition system. The system will include: 12 GHz down-converter incorporating programmable attenuators, wideband IQ demodulators, data acquisition system sampling at 750MS/s. Around 50 channels will be required.(CERN has started some of the work)
29CTF3 Collaboration Board 22.6.2007
Open work packages for CTF3
9. Prototype PETS structure manufacture: These structures require 10 micron precision, fully three dimensional milling in relatively large, 1 m long, parts. We expect that two or three generations of PETS will required for the testing program.
10. Ultrasonic fatigue testing: This work package consists in measuring the fatigue behaviour of bulk materials which can be applied for the construction of accelerating cavities for CLIC by ultrasonic excitation or similar methods. Testing should be extended to the nominal lifetime of the machine (1011 pulses) and should give a base for the estimate of the surface fatigue provoked by the RF pulses. The focus is at present on precipitation hardened copper alloys which have high electrical conductivity and mechanical strength. The influence of the various surface treatments which could improve fatigue resistance and be compatible with the requirements of RF application, high precision machining and in a second priority with bi-metal joining techniques should be investigated. Other potential candidates beyond such alloys, as composites or other materials, having similar and superior properties should be selected and evaluated.
11. CTF3 commissioning and operation support by experienced machine physicists
30CTF3 Collaboration Board 22.6.2007
Conclusion
Commissioned up to including TL1• Combiner Ring installed, being commissioned, • TL2 in 2007/2008, all components covered• CLEX : not all components covered by collaboration• Stand alone x-band power source required
Already demonstrated:
• full Beam Loading operation of linac• Phase coding of bunches• Bunch Interleaving in Delay Loop
31CTF3 Collaboration Board 22.6.2007
ADDENDUM to
THE MEMORANDUM OF UNDERSTANDING FOR A MULTI-LATERAL COLLABORATION
between
THE INSTITUTIONS AND FUNDING
AGENCIES OF THE CTF3 COLLABORATION
concerning
THE CONTRIBUTION OF THE JOHN ADAMS INSTITUTE AT ROYAL HOLLOWAY, UNIVERSITY OF LONDON
TO THE CTF3 COLLABORATION
June 2007
DRAFT v2
32CTF3 Collaboration Board 22.6.2007
CONSIDERING: The Memorandum of Understanding (“the MoU”) defining the framework applicable to the construction of a 3rd generation Compact Linear Collider Test Facility (CTF3) and the performance of Experiments to demonstrate the feasibility of key issues of the CLIC scheme; That Article 1.2 of the MoU envisages Addenda defining each contribution pledged to the CTF3 Collaboration, THE JOHN ADAMS INSTITUTE AT ROYAL HOLLOWAY, UNIVERSITY OF LONDON (JAI@RHUL) REPRESENTED BY GRAHAME BLAIR, in its capacity as Member of the CTF3 Collaboration, HEREWITH AGREES to make the following contributions: Already provided until/inclusive 30th April 2007
Participation in CTF3 meetings and observer at the CTF3 Co-ordination Committee. Simulation studies, including the CLIC beam delivery system. Plans for collaboration in the EU-FP7 scheme.
The JAI@RHUL shall assume responsibility for the provision of the following contributions for the period 2007-2010 to CTF3:
Collaboration in the area of radiative processes from electron beams such as transition, diffraction and synchrotron radiation consisting of a PhD student, 0.5 FTE of a post doc, fractional effort from Academic Staff at the John Adams Institute at RHUL, plus hardware contributions.
Contributions to the design and proposal to the EU of an instrumentation test beam at the CTF3/CLEX facility.
The total financial equivalent of these contributions will be approximately 640 kCHF.
This Addendum shall form an integral part of the MoU. Done in Geneva on ……………………. 2007 For John Adams Institute at RHUL Prof. Grahame Blair Deputy Director of JAI Dr. Hitesh Patel
Deputy Head (Research)
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