Injector –Linac Status & Schedule E. Bong LCLS FAC October 12, 2006

Injector - Linac Status & Schedule 2006 Installation Status (C. Rago) Injector & Linac 2007 Schedule 2007 Installations 2007 Engineering Effort

FAC Report April 2006 Installation priorities are based on the hardware required for installation within the linac tunnel during the current shutdown. Installation of components outside the linac tunnel may be accomplished after the shutdown, with minimal impact on operations. While the prioritization introduces some delay in readiness of the injector, the overall philosophy followed by LCLS appears to be sound. Delayed design and fabrication of some Injector components to accelerate Linac device design and fabrication. The FAC encourages the LCLS management to provide sufficient resources to avoid compromising injector readiness for commissioning, e.g. installation of LCW in the injector region is not yet fully planned and there is potential for problems that may be encountered causing delays. Also, the photocathode laser installation schedule is tight and attention should be given to its readiness with at least the minimal required laser systems performance for initial gun tests with beam. Injector/Linac managed to secure short term design and engineering support from outside contracts and SLAC matrixed manpower.

2006 Injector Installation Drive Laser Installed Laser Launch Follows GTL Gun Region Accel Region Heater Region 2007 Down Wall Region Injection Region 2006 Down Spect Region 2006 Down Gun installation Follows Hot Test in Klystron Lab & GTL Fabrication of Injector Vault components slipped in order to support Linac Housing Installation Insertion/SAB Chambers Late Waveguide through wall and up penetration Done Priority – Linac Housing Installation

2006 Linac Installation Accelerator Sections Removed Linac 1 (L1) LX Bunch Compressor 1 (BC1) Two short accelerator structures, refurbished Quads+BPMs,X&YCOR X-Band Structure (NLC) Quad + BPM, YCOR,XCOR, QE, Toroid Bunch Compressor & Diagnostics Emittance Diagnostics. Electrons Remove 5 S-Band Structures Accelerator Sections Removed BC1 Bend Magnet Field Issues Most Components Fabricated Spools For Late Components Need Installation Opportunities For Late Components

Injector and Linac Installation Dates Linac Down: August – November 2006 September - November 2007 RF Gun Dec 2006 rf gun Linac-X Aug-Nov 2006 E-Dump Nov 2007 Feb 2008 L0a&b Linac-1 Aug-Nov 2006 Linac-2 Sep-Nov 2007 Linac-3 Sep-Nov 2007 Inj Vault Jun-Dec 2006 undulator SLAC linac 21-1b 21-1d X 21-3b 24-6d 25-1a 30-8c BC-1 Aug- Nov 2006 BC-2 Sep-Nov 2007 DL-1 Aug-Nov 2006 LTU Nov 2007 Feb 2008 SLAC linac tunnel research yard Installation in SLAC Linac tunnel only during down-time Forces priority to components and systems in Linac housing (RF phase: frf = 0 is at accelerating crest)

2007 Injector Installation Remaining 2006 devices (ROD) Cathode Replacement Laser Heater Installation Design Feasibility Done Bend Magnets Ordered Vacuum Chambers (Rough Concept) OTRs (Modification for Location) Laser Transport & Optics (Basic Layout) Undulator (Initial Design)

Injector Heater Region Design Floor Supports Received Temporary Chamber Done Quads Done Bends on Order Initial Chicane/Optics Layout Done Need to Complete Final Optics Optics Enclosure Optics Transport OTR Designs Undulator Design

2007 Linac Installation L2, BC2, L3, BSY (September 2007) Chicane Articulation LTU (November 2007) Single Beam Dump Spot Shielding Quad Vibration E-Dump (November 2007) Radiation Shielding/CF Interface Dump Magnets & Chamber

Linac Li20-30 Design Status L2& L3 Layout Resumed Near to PDR Wire Scanners & T-Cav Move BC2 Layout Started Articulation Engineering BSY Work Not Started – Quad install

Beamline Layout - Ongoing Vibration Issues – Support Design LTU Design Status Beamline Layout - Ongoing Vibration Issues – Support Design CF Interface – Ongoing – Penetrations Penetrations – Water, BTH-West Support Building Power Component Challenges Single Beam Dump Cold Trap – BSY Contamination Undulator Interface

LTU Design Status Beamline Layout - Ongoing Radiation & CF Interface Well & Pit Locations Safety Dump Specification Component Challenges Dump Bends & Chambers BCS & Radiation Driven Design Undulator Interface X-TOD Interface Pit & Well Component Supports

2006 Priorities (Inj Vault/Linac Housing) Conclusion 2006 Priorities (Inj Vault/Linac Housing) Consequence Delay Slips Commissioning Minimum Impact CD4 2007 Engineering & Design L2, BC2, L3, BSY LTU E-Dump Radiation Driven Design Challenges