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Undulator Complex Status. LCLS Introduction Layout Responsibilities Schedule Undulator Complex Status Outstanding issues. Injector (35 º ) at 2-km point. Existing 1/3 Linac (1 km) ( Commissioned in 2007-8 ). New e - Transfer Line (340 m). X-ray Transport Line (200 m).
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Undulator Complex Status LCLS Introduction Layout Responsibilities Schedule Undulator Complex Status Outstanding issues
Injector (35º) at 2-km point Existing 1/3 Linac (1 km) (Commissioned in 2007-8) New e- Transfer Line (340 m) X-ray Transport Line (200 m) Undulator (130 m) Near Experiment Hall (underground) X-Ray Transport/Optics/Diagnostics Far Experiment Hall (underground) Linac Coherent Light Source at SLAC
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
LCLS Installation and Commissioning Time-Line InstallUndulators First Light in FEH LTU/Und Install X-Rays in NEH First Light in FEE CD-4 (7/31/2010) FEE/NEH Install FEH Hutch BO PEP-II run ends now M J F M A M J J A S O N D J F A M J J A S O N D J F M A M J J D D A 2008 2009 2010 Down Down? PPS LTU/Und Comm. NEH Ops & Commissioning Linac/BC2 Commissioning Re-establish e- to SL2 FEL/FEE Commissioning Nov. 3, 2008
SAD and ASE SLAC-I-010-30100-000_lafase_text_r001 SLAC-I-010-30100-016_lclsundcomplexsad_text_r000
LCLS beam limits from the ASE These are the power levels used in shielding design calculations. 1680 W is 1 nC at 14 GeV at 120 Hz, Typical 2009 commissioning will be at ~100 W
LCLS New Construction e- Beam Dump Front End Enclosure (FEE) Undulator Hall Beam Transport Hall Far Exp. Hall Near Exp. Hall SLAC Linac Photon Systems Undulator Complex
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.
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
LCLS New Construction e- Beam Dump Front End Enclosure (FEE) Undulator Hall Beam Transport Hall Far Exp. Hall Near Exp. Hall SLAC Linac Photon stoppers will be locked in until photon systems operations are authorized.
Dump-FEE safety system layout Photon stoppers
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.
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.
Layout of DLH, FEE, and NEH e- Beam Dump (DLH) NEH FEE Plan view BYDs – DC magnets Wall1 Wall 2 PEPII ring road Hutch1 Hutch2 Elevation view Main dump line Main dump