1. Injector/Linac RF Status
RF Gun
L0-A, L0-B and L1 Acc. Structures
Transverse Accelerating Cavities
S-Band Waveguide
X-band System
Low Level RF and Controls

2. Injector/Linac RF Systems
6 MeV
135 MeV
250 MeV
4.54 GeV
14.1 GeV rf
gun
Linac-X
L =0.6 m
L0-A,B
Linac-0
L =6 m
Linac-1
L 9 m
Linac-2
L 330 m
Linac-3
L 550 m
T-Cav
21-1b
21-1d X
21-3b
24-6d
25-1a
30-8c
undulator
T-Cav
BC-1
L 6 m
BC-2
L 22 m
LTU
L =275 m
SLAC linac tunnel
research yard

3. RF Gun SLAC linac tunnel research yard 6 MeV 135 MeV 250 MeV 4.54 GeV
Linac-X
L =0.6 m
L0-A,B
Linac-0
L =6 m
Linac-1
L 9 m
Linac-2
L 330 m
Linac-3
L 550 m
T-Cav
21-1b
21-1d X
21-3b
24-6d
25-1a
30-8c
undulator
T-Cav
BC-1
L 6 m
BC-2
L 22 m
LTU
L =275 m
SLAC linac tunnel
research yard

4. RF Gun Being fabricated at SLAC
E. Jongewaard
Being fabricated at SLAC
RF design is complete (LCLS Tech note 05-3, PRD, ESD in prep.)
Dual feed, racetrack coupler, improved mode separation
Mechanical engineering is underway
Analysis of cooling requirements, due 7/1/05
Detailed design underway, on schedule
Final Design Review 9/16/05
Ready for installation 7/06

5. RF Gun System Supports ‘Active’ support for the gun solenoid.
Solenoid alignment tolerances are tighter than achievable with precision supports and survey techniques,
Beam based alignment appears to be necessary, requiring precision motion of the solenoid relative to the gun beamline.
What is the BBA procedure? What kind of control is necessary?
Safety issue, will repeated accesses be needed?
What are the requirements on the PPS system?

6. L0-A, L0-B and L1 SLAC linac tunnel research yard 6 MeV 135 MeV
4.54 GeV
14.1 GeV rf
gun
Linac-X
L =0.6 m
L0-A,B
Linac-0
L =6 m
Linac-1
L 9 m
Linac-2
L 330 m
Linac-3
L 550 m
T-Cav
21-1b
21-1d X
21-3b
24-6d
25-1a
30-8c
undulator
T-Cav
BC-1
L 6 m
BC-2
L 22 m
LTU
L =275 m
SLAC linac tunnel
research yard

7. L0-A and L0-B Input coupler RF design is complete (Z. Li)
J. Chan
Input coupler RF design is complete (Z. Li)
Dual input, single output
Mechanical design underway
Models as shown, for structures and waveguide
Plan in place for brazing of structure
Structure modification scheduled June-Sept ‘05
Detailed design work in progress

8. Linac 1 S-Band Structures
J. Chan
Have 9½ foot accelerator structures in hand to qualify for use.
Have two candidates.
Will test along with L0-A and L0-B
L1 bead pull scheduled this month
L0-A,-B bead pull scheduled in July ’05
Ends, supports need (modest) design effort.

9. Transverse Accelerating Cavities
6 MeV
135 MeV
250 MeV
4.54 GeV
14.1 GeV rf
gun
Linac-X
L =0.6 m
L0-A,B
Linac-0
L =6 m
Linac-1
L 9 m
Linac-2
L 330 m
Linac-3
L 550 m
T-Cav
21-1b
21-1d X
21-3b
24-6d
25-1a
30-8c
undulator
T-Cav
BC-1
L 6 m
BC-2
L 22 m
LTU
L =275 m
SLAC linac tunnel
research yard

10. Transverse Accelerating Cavities
J. Chan
For Injector:
Accelerator section removed from Linac, in shop.
Needs beamline flanges attached.
Physics specification received (PRD, ESD pending)
Needs detailed design for the ends, fabrication (a modest effort)
Beamline installed starting 1/06
Radiation shielding under investigation (is PPS needed?)
For Linac:
Accelerator section will be removed from Linac sector 28, and reinstalled in sector 25.

11. S-Band Waveguide Large purchase of waveguide Cu in bid cycle.
C. Rago
Large purchase of waveguide Cu in bid cycle.
Large flange order in the process of being placed as well.
There is material in house to begin waveguide fabrication.
System design in Klystron Gallery underway.
System design in Inj. vault will be by J. Chan.
Some parts (eg couplers) in the shop.
Many components (vac. pumpouts, braze preps) designed.
Spring 2006 installation
Complex installation from Injector Vault to Klystron Gallery
planned for October ’05.
Radiation shielding approved
Waveguide drawings are in the shop
Support design underway

12. X-band System SLAC linac tunnel research yard 6 MeV 135 MeV 250 MeV
4.54 GeV
14.1 GeV rf
gun
Linac-X
L =0.6 m
L0-A,B
Linac-0
L =6 m
Linac-1
L 9 m
Linac-2
L 330 m
Linac-3
L 550 m
T-Cav
21-1b
21-1d X
21-3b
24-6d
25-1a
30-8c
undulator
T-Cav
BC-1
L 6 m
BC-2
L 22 m
ltu
L =275 m
SLAC linac tunnel
research yard

13. X-band System System layout is nearly complete
P. McIntosh
System layout is nearly complete
Klystron mounting and positioning design delayed due to (ongoing) Klystron Dept. safety development.
Klystron PDR was due 3/28, FDR 4/6
Klystron 120 Hz testing needs to be scheduled
Structures and some waveguide have been acquired
Klystron and some other parts partially complete
To be installed Summer ‘06

14. Low Level RF and Controls
R. Akre
Front end system has had a PDR, FDR 9/05
Phase shifter and Master Amplifier to be tested 10/05
LLRF monitor and control system PDR in June
Active area of effort - Fab? Buy? – tests underway
SS Subbooster design/fab. is underway
T-Cavs’ physics requirements received (PRD pending)
X-band LLRF system defered until FY06
Developed in association with the S-band system