1. CLEX Building Layout, Conventional Facilities, TL2, TL2’,
Status and Schedule
Hans-H. Braun, CLEX day,
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: July 2007, Building with infrastructure ready for move-in !

3. 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 2m D F F D F D
0.75
8 m D F D F
DUMP F D D F
2.5m
LIL-ACS
LIL-ACS
LIL-ACS
16.5 m
22 m
CALIFES probe beam injector
2.0m
16 m
DUMP
ITB
walk around zone
1.4m
42.5 m
Space reservations
CALIFES 22.0 m from cathode preparation chamber to end of spectrometer
TBTS 16.5 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

4. 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)

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

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

8. CLEX-G
CLEX-A

9. 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

10. Integration of beamlines with building
(N. Chritin)
Goal is to integrate beam-lines, waveguides, optical lines,
ventilation ducts, connecting holes between building etc.
in a single 3D drawing (CATIA).

11. Footprint of beam-lines in CLEX building

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

13. Position of laser beam line holes between gallery and CTF II (for integration of CALIFE optical line)

14. TL2 Preliminary design from LNF
Refined optics design in progress by RRCAT/Indore (India)
Dipole magnets and vacuum chamber provided by RRCAT
Refurbished quadrupoles and sextupoles from LIL/EPA and TSL
Beam diagnostics (~9 BPM/BPI, 1 SR port) to be provided by CERN
BPM electronics LAPP ?
Power supplies and cabling to be provided by CERN
Vacuum pumps, gauges and valves to be provided by CERN
Mechanical design and supports to be provided by CERN
Installation foreseen from October ’07 to December ‘07

15. 1. R56 tunability from –0.35m to +0.35m 2. In whole range T566 = 0
TL2 requirements:
1. R56 tunability from –0.35m to +0.35m
2. In whole range T566 = 0
3. Emittance dilution < 10%
4. final = 4-5m (both planes)
5. final = 0 (both planes)
6. 4.0m dispersion free straight for tail clipper
7. Vertical achromat for sending the beam 50 cm downside
from Amalendu Sharma / RRCAT
8.75
Vertical
Achromat
34.75
-8.75
-34.75
Combiner Ring
Final
Matching
Point

16. 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 LIL or 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
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 required !
Optics design in progress (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

17. Magnet and power supply inventory for all CLEX beamlines + TL2 (but without ITB)
# magnets / # power supplies
TL2 TL2’ TBTS CALIFES TBL Total
Dipoles 5/3 2/1 2/2 1/1 1/1 11/8
Quadrupoles 21/21 11/10 12/ /3 (16+2) /(16+2) 65/64
H/V Correctors 9/18 6/12 10/ /14 1/2 33 / 66
Solenoids 0/0 0/0 0/0 4/4 ? 0/0 4/4

18. Acquisition electronics, who builds what ? (this afternoon)
Instrumentation inventory all CLEX beamlines + TL2 (but without ITB)
TL2 TL2’ TBTS CALIFES TBL Total
BPM (incl. variants) 5 ? ? 16+1 ? 43
BPI 4 ?
BPR
WCM
TV-OTR moveable
TV-OTR fix
TV-SR
BLM x? 16x?
Acquisition electronics, who builds what ? (this afternoon)

19. with 3 GHz waveguide network
Tentative layout of vacuum sectors in CLEX beamlines + TL2 (but without ITB)
CALIFES
RF gun
CALIFES Linac
with 3 GHz waveguide network
TBTS
TBTS diag.
beam
dump
30 GHz waveguide
with Grudiev valve ?
TBTS diag. $
TBTS
beam
dump
TL2’ CR $
TL2 $
TBL diag. $
TBL
beam
dump
10 sectors
4 valves with RF shield
5 valves without RF shield
1 waveguide valve ?

20. Estimate of electrical power requirements in CLEX (kW)
CLEX-A
CLEX-G
Magnets
411
3 GHz Modulators, Pulse compression and structures
120
Ambient light 2 1
VME crates 6
40 ion pumps 4
8 turbo pumps
Bake out equipment 10
Miscellaneous 20
Total 38
563
Grand total
601

21. Estimate of cooling water requirements

22. Milestones and Summary
Building ready for installation of beamlines by mid 2007
TL2, TL2’ and TBTS to be ready for beam by April 2008
First experiment after commissioning is high power production with PETS in summer 2008
CALIFES can be commissioned in parallel
Second experiment is two beam acceleration of CALIFES beam
with high frequency structure powered by PETS in autumn 2008.
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
and we should foresee space for a deflecting magnet in CALIFES beam line
CLEX is quite CompLEX