1. CLEX* Status and Plans CTF3 complex CLEX
Hans Braun, CTF3 collaboration meeting,
CTF3 complex
X 2 Delay Loop
3.5 A ms
150 MeV
Drive Beam
Injector
Drive Beam Accelerator
16 structures - 3 GHz - 7 MV/m
TL1
X 5 Combiner Ring
Two-beam
Test Area
150 MV/m
30 GHz
TL2
30 GHz and Photo injector test area
CLEX
35 A ns
150 MeV

2. CLEX Building key numbers
CLEX-A (Accelerator housing)
Inside dimensions L x W x H = 42.5 m x 8 m x m, no pillars inside building !
CLEX-G (Equipment Galery)
Inside dimensions L x W x H = 22 m x 8 m x m
Bottom line: June 2007, Building with infrastructure ready for move-in !

3. CLEX Glossary CLEX=CLIC EXperimental area TBTS=Two Beam Test Stand
Testbed for 12 GHz RF tests of drive beam decelerating structures (PETS)
and main beam accelerating structures.
Demonstration of two beam acceleration
TBL=Test Beam Line
Feasibility demonstration of CLIC drive beam decelerator
CALIFES=Concept d’Accélérateur LInéairepour Faisceau d’ElectronsSonde
3 GHz probe beam injector to simulate main beam in TBTS
TL’
switchyard for drive beam and drive beam diagnostics
ITB=Instrumentation Test Beam
Option for 2nd beamline connected to CALIFES for development and test of beam diagnostic equipment

4. Layout of CLEX-A (A=Accelerator housing) floor space1
6 m
22.4 m
3.0m
3.0m
DUMP D F D F
TBL
1.85m D F D F F
TL’ D
DUMP
TBTS
DUMP F D F D F F D F D
0.75
8 m D F D F
DUMP
1.4m
2.5m F D D F
LIL-ACS
LIL-ACS
LIL-ACS
16.6 m
23.2 m
CALIFES probe beam injector
1.4 m
16 m
DUMP
ITB
walk around zone
1.4m
42.5 m
Space reservations
CALIFES 23.2 m from cathode manipulator arm to exit flange of spectrometer
TBTS 16.6 m from output spectrometer to end of beam dump
TBL 31.4 m from dogleg bend to end of beam dump
ITB 16.0 m from 2nd dogleg magnet to end of beam dump

5. Estimate of number of 19” racks required for CLEX equipment
Layout of CLEX-G (G=Galery) floor space
LIL Galery
CTF2 Galery
plant room
holes for waveguides
and cables
0.55
0.85
2.2m
5.5m
Labo Streak 2m
Modulator
5.8m
2.3m
Modulator
5.8m
2.3m
8 m
1.70 1
1.3 1
1.3 1
1.3
1.65
1.65
3.9m
rows of 19” racks
1.65
1.65
27.00 m
Estimate of number of 19” racks required for CLEX equipment
Equipment type
Number of racks
Magnet power supplies 30
Ion pump power supplies 5
Vacuum gauges, valves and interlock controls 4
Low power 3 GHz RF
Modulator mains distribution 2
Controls, beam diagnostics, timing 3
Total estimate 48
Total rack space available 63
Enough space for all power supplies, vacuum, controls
and beam diagnostics racks needed for CLEX beamlines
Space for two S-band modulators and klystrons
Neighboring CTF2 gallery has space for one or two more
modulators and klystrons and for more electronic racks
(i.e. for 30 GHz receivers for two beam test stand and
drive beam test beam line)

6. Positioning of CLEX-G relative to CLEX-AD F
DUMP
ITB
CALIFES Probe beam injector
LIL-ACS
TBL
TBTS
Modulator
Labo Streak

7. CLEX building Construction on schedule
June 2006
Construction on schedule
Equipment installation from May 2007,
Beam foreseen from March 2008
Jan 2007

9. CLEX-G
DBA
Klystron Galery
DBA
Housing
CLEX-A

10. Floor and Beamline Heights
Tue to difference in construction technique CLEX floor is ~50 cm lower than combiner ring building and DB Linac building
Beam height above floor DB Linac, delay loop, TL1 and combiner ring 135 cm
135 cm + 50 cm=185 cm seems too much for CLEX G
Vertical bends needed in TL2
All beamlines inside CLEX are at the same level but CLEX G floor has a 1.5% slope for water evacuation therefore beam height above floor varies from 1.25 to 1.35m !
DB Linac
50cm
CLEX

11. Footprint of beam-lines in CLEX building

12. Beam heights above floor
ventilation ducts
probe
beam
drive beam
ITB
TBL

13. TL2’ TL2’ Transport from end TL2 to TBL or TBTS
11 quadrupole magnets. Refurbished from TSL, LURE and some new QL3
2 dipole magnets either refurbished from LURE
Beam diagnostics (~6 BPM, 1 BPR, 1 WCM, 2 OTR) to be provided by CERN
BPM electronics LAPP ?
Vacuum systems to be provided by CERN (or RRCAT)
Power supplies and cabling to be provided by CERN
Mechanical design and supports to be provided by CERN
Installation foreseen from October ’07 to March ’08
Interface definition to TBTS still required !
Optics design TL2’ (S. Döbert) 1
TBL
6 m
22.4 m
3.0m
3.0m
DUMP D F D F D F D
1.85m F D F
TL2’
DUMP
DUMP D F 2m D F F D F D
0.75
8 m D F
DUMP
2.5m D F F D D F
LIL-ACS
LIL-ACS
LIL-ACS
16.5 m
TBTS
22 m
CALIFES Probe beam injector
2.0m
16 m
DUMP
ITB
Transport path
1.4m
42.5 m

14. Positioning of CALIFES and space for Two Beam Test Stand (TBTS)
Axis laser beam line hole has 580 mm transverse distance to CALIFES beam axis
Distance last flange of CALIFE - wall = 17.89m, 1.4 m needed for passage
TBTS including beam dump can use m total length

15. Milestones and Summary
Building ready for installation of beamlines by mid 2007
TL2, TL2’ and TBTS to be ready for start-up spring 2008
CALIFES can be commissioned in parallel
First parts of TBL to be tested in 2008 but construction will happen in
phases (see Steffens talk).
ITB is for time being an option for which we reserve floor space