1. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 1 Undulator Complex Status LCLS Introduction Layout Responsibilities Schedule Undulator Complex Status Outstanding issues

2. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 2 Linac Coherent Light Source at SLAC Injector (35º) at 2-km point Far Experiment Hall (underground) Near Experiment Hall (underground) New e  Transfer Line (340 m) X-ray Transport Line (200 m) Undulator (130 m) X-Ray Transport/Optics/Diagnostics Existing 1/3 Linac (1 km) (Commissioned in 2007-8)

3. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 3 Commissioning responsibilities Beam operations Accelerator Systems Division (John Seeman) Operates the Main Control Room Operations adhere to the Beam Authorization Sheet Schedules maintenance and repair Manages the facilities Commissioning Goals(Paul Emma) LCLS Project Physics group Schedules and organizes commissioning efforts to meet goals. Radiation Safety measurements(Sayed Rokni) Radiation Physics group Performs measurements to confirm shielding efficacy LCLS Project provides funding for commissioning activities

4. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 4 Re-establish e - to SL2 LTU/Und Comm. First Light in FEE First Light in FEH NEH Ops & Commissioning J J F F M M A A M M J J J J A A S S D D J J F F A A M M J J J J A A S S O O N N D D J J F F M M A A M M J J J J ON A 2008 2009 2010 Down PPS Linac/BC2 Commissioning FEL/FEE Commissioning Nov. 3, 2008 Install Undulators D LCLS Installation and Commissioning Time-Line LTU/Und Install PEP-II run ends FEE/NEH Install CD-4 (7/31/2010) X-Rays in NEH now D Down? FEH Hutch BO M

5. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 5 SAD and ASE SLAC-I-010-30100-000_lafase_text_r001 SLAC-I-010-30100-016_lclsundcomplexsad_text_r000

6. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 6 LCLS beam limits from the ASE 1680 W is 1 nC at 14 GeV at 120 Hz, Typical 2009 commissioning will be at ~100 W These are the power levels used in shielding design calculations.

7. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 7 LCLS New Construction Far Exp. Hall Near Exp. Hall Undulator Complex SLAC Linac Front End Enclosure (FEE) Undulator Hall Photon Systems e - Beam Dump Beam Transport Hall

8. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 8 Beam Transport Hall

9. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 9 Undulator Hall

10. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 10 Undulator Magnet Installed

11. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 11 Electron Beam Dump Area

12. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 12 Undulator Complex Status Installation complete Vacuum, Magnets, Diagnostics, Safety Systems Final alignment this week. Systems’ checkout Controls and Physics checkout is underway. Safety Systems Initial Acceptance Tests PPS, BCS Initial Acceptance Tests this week.

13. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 13 Outstanding Issues (11-25-08) Fire safety check-off Fire systems commissioning through 11/26 Final shielding Final elements to be installed this week Punch list closeout (a copy is on the web) Some items need pre-start completion Preparedness document sign-off Final signatures are last-minute, inc. ASD Beam Authorization Sheet (BAS) sign-off (ASD, RP) is the final link before operations

14. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 14 LCLS New Construction Far Exp. Hall Near Exp. Hall SLAC Linac Front End Enclosure (FEE) Undulator Hall Beam Transport Hall e - Beam Dump Photon stoppers will be locked in until photon systems operations are authorized.

15. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 15 Dump-FEE safety system layout Photon stoppers

16. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 16 B4C Stoppers must be able to withstand the allowed beam power (x-rays) indefinitely. B4C is placed on stoppers face to withstand the FEL beam Damage threshold of B4C calculated to have a safety factor of ~10. Have a test apparatus to confirm viability, with a B4C sample placed in the photon beam, for testing at increasing beam power density. Detailed testing plan needed prior to installing Undulator magnets.

17. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 17 Summary The SAD and ASE for LCLS Undulator Complex commissioning are signed. The Undulator Complex technical systems are installed and are being checked. Safety systems are complete this week (some shielding installation and the IAT). Completion will be verified through the BAS. Accelerator Operations and maintenance will be done by experienced SLAC groups. Plans are in place for the beam commissioning program.

18. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 18 end

19. David Schultz Accelerator Readiness ReviewDCS@SLAC.Stanford.edu Dec. 2, ‘08 SLAC National Accelerator Laboratory 19 FEE e - Beam Dump (DLH) Plan view Elevation view Main dump NEH PEPII ring road Hutch1Hutch2 Main dump line Layout of DLH, FEE, and NEH BYDs – DC magnets Wall 2Wall1