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LCLS Linac Technical Design Review Management Eric Lind Bong December 12, 2003

LCLS Linac Technical Design Review Management Eric Lind Bong December 12, 2003. System Description Progress Timeline Organization Work Breakdown Structure Interfaces Risk. LCLS Linac System Schematic. Single bunch, 1-nC charge, 1.2- m m slice emittance, 120-Hz repetition rate….

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LCLS Linac Technical Design Review Management Eric Lind Bong December 12, 2003

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  1. LCLS Linac Technical Design ReviewManagementEric Lind BongDecember 12, 2003 • System Description • Progress • Timeline • Organization • Work Breakdown Structure • Interfaces • Risk Eric Bong, SLAC

  2. LCLS Linac System Schematic Single bunch, 1-nC charge, 1.2-mm slice emittance, 120-Hz repetition rate… 250 MeV z  0.19 mm   1.6 % 4.54 GeV z  0.022 mm   0.71 % 14.1 GeV z  0.022 mm   0.01 % 6 MeV z  0.83 mm   0.05 % 135 MeV z  0.83 mm   0.10 % Linac-X L =0.6 m rf= -160 rf gun Linac-1 L 9 m rf  -25° Linac-2 L 330 m rf  -41° Linac-3 L 550 m rf  -10° new Linac-0 L =6 m undulator L =125 m 21-1b 21-1d 21-3b 24-6d 25-1a 30-8c X ...existing linac BC-1 L 6 m R56 -39 mm BC-2 L 22 m R56 -25 mm DL-1 L 12 m R56 0 LTU L =275 m R56  0 research yard SLAC linac tunnel (RF phase: frf= 0 at accelerating crest) Shamelessly Stolen from Paul Emma Eric Bong, SLAC

  3. LCLS Linac System Summary • L3 (Linac Sector 24-BSY) • Remove NPI Gun • Install S-Band Structures • Relocate Wire Scanners • Transverse Structure • LTU (C-Line – Research Yard) • New Enclosure • Re-use FFTB Magnets • Diagnostics Section • Single Beam Dumper • E-Dump (Inside Ring Road) • New Enclosure • Spectrometer • Permanent Mag Safety Bends • L1 (Linac Sector 21) • Modified S-Band Structures • New Quadrupoles • BC1 (Linac Sector 21) • X-Band Structure • Flexible Bunch Compressor Chicane • Diagnostics Section • L2 (Linac Sector 21-24) • New Wire Scanners • BC2 (Linac Sector 24) • Flexible Bunch Compressor Chicane • Diagnostics Section Eric Bong, SLAC

  4. Changes Since Spring ’03 Review • SC Wiggler Eliminated • Longitudinal Space Charge Instability • Injector Laser Heater • DL2 Expanded to LTU • Accommodates Future Expansion • Multiple Undulators • Dumpline Redesign • Remove Permanent Magnets in Dump Line • Accommodates Energy Measurement • Place Permanent Magnets in Photon Line Eric Bong, SLAC

  5. Technical Progress • Instability Studies & End to End Simulations • System Re-optimized • Lower Injection Energy • Reduced Magnet Tolerances • Component Specification Database • System Layouts • Generated From MAD in Solid Edge • Bunch Compressor 1 Mechanics Concept • Diagnostics • EO Monitor Measurement in SPPS • Spectrometers Upbeam & Downbeam of Undulator • WBS & Manpower Loaded Schedule • Component Counts from MAD Deck • Operating Modes for Undulator Commissioning & Protection Eric Bong, SLAC

  6. Commissioning and Operations Scheduled Dates • Decommission FFTB FY06 - Q1 • L1-BC1 Commissioning FY07 - Q1 • L2-BC2-L3 Commissioning FY07 - Q4 • LTU Commissioning FY07 - Q4 • Undulator Commissioning FY08 - Q1 • Rate Limited Beam • Beam to SBD • Beam to Stoppers • Beam to Main Dump • LCLS Operations FY08 - Q3 Eric Bong, SLAC

  7. SLAC Operations Integration Goals • LCLS Operation • Dedicated LCLS Running 75% • Main Linac Operation • Beam Delivery to non-LCLS Experiments 25% • Changeover • X-Band Structure in place 15 minutes • High Charge Beam 1 shift Eric Bong, SLAC

  8. LCLS Linac Work Plan by AreaDesign, Long Lead Procurement, Construction, Installation, Laser Commissioning SLAC Linac Downtime Eric Bong, SLAC

  9. LCLS Linac Long Lead Procurement Items SLAC Linac Sector 21-1 & 21-2 X-Band Structure BC1 Bend Magnets SLAC Linac Sector 24-7, -8 & -9 • X-Band System • Bunch Compressor Bend Magnets • Long Lead Procurement Funds FY06, Construction Funds FY07 BC2 Bend Magnets Eric Bong, SLAC

  10. LCLS Linac Organizational Chart • Installation Manager • Commissioning Manager • Fabrication Coordinator Eric Bong, SLAC

  11. Project Work Flow Beam Requirements (FEL) Optics Design Diagnostics Requirements System Requirements Component Specifications Mechanical Engineering and Design Controls System Specification and Design Device Control Hardware Device and System Control Software Component Fabrication/Acquisition Component Assembly Component Testing Systems Assembly & Installation Systems Testing & Checkout System Commissioning Beam Delivery Maintenance System Improvements Data generated and passed between disciplines and across organizational boundaries. Eric Bong, SLAC

  12. Technical Data Management • System Definition • Optics Design • Beam Stability • Modeling Codes • Safety System (ES&H) • Radiation Safety • Hazardous Equipment • Beam Containment • Personnel Protection • Component Specifications • Definition • Design • Fabrication • Testing • Installation Mechanical Drawing DB Controls System Power Conversion System Commissioning Beam Delivery Maintenance System Improvements Facility Expansion Centralized data management insures consistent information distributed across disciplines. Eric Bong, SLAC

  13. Work Breakdown Structure WBS used to fund activities and control budget. Eric Bong, SLAC

  14. WBS Sample Detail Types and quantities of devices derived from MAD deck Eric Bong, SLAC

  15. WBS Manpower Loading Detail Sample Eric Bong, SLAC

  16. LCLS Linac WBS SummaryDesign, Long Lead Procurement, Construction, Laser Commissioning All costs $k Data from DOE Critical Decision 1 Review Eric Bong, SLAC

  17. LCLS Linac System Interfaces • LCLS Systems • Injector • LCLS Undulator • LCLS X-Ray Systems • LCLS Conventional Facilities • SLAC Systems • Technical Division • Experimental Program • Machine Operations • Maintenance Organizations Requires regular communication between LCLS system managers physicists. Requires regular design and construction progress reports to SLAC Tech Division and Accelerator Dept. Requires continued communications during operations. Eric Bong, SLAC

  18. Linac Controls System • Use SLAC control system where it exists • EPICS where new systems are implemented • Main Electron Dump • Linac to Undulator Beamline • X-Band System • Epics and SLAC Controls Interface • LCLS Injector • Interface Modules • SLAC Timing • Feedback Eric Bong, SLAC

  19. Technical Risk • Low Risk Devices & Systems • S-Band RF Configuration Changes • Beamline Design • Vacuum System • Standard Diagnostic Devices • Medium Risk Devices & Systems • High Precision OTR Screens • RF Stability • High Risk Devices and Systems • Bunch Length Measurement Devices • Bunch Length Based Feedback • Large Increase in Engineering Manpower in FY05 Eric Bong, SLAC

  20. Open Issues • LTU and Dumpline • Dumpline Optics Design • Radiation Physics Approval • PPS BCS MPS • Conventional Facilities Parameters • Control System • Controls System Manager • System Definition • SLAC – EPICS Interface Eric Bong, SLAC

  21. Conclusion • WBS derived from MAD deck. • Main dump design immature (Rad Physics) • Database will be used to manage technical information. • Shared role of Linac requires ongoing communication between LCLS and TD/AD. • Challenges in mixed control system • Need more controls engineering involvement. • High risk devices and systems need R&D. Eric Bong, SLAC

  22. End of Presentation Eric Bong, SLAC

  23. K$ Eric Bong, SLAC

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