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Linac Coherent Light Source Collaboration 24 October 2005

Linac Coherent Light Source Collaboration 24 October 2005. Immediate Issues Progress Highlights Conventional construction budget Next steps. Recent Events. SSRL User Meeting, 17 October 2005 Pat Dehmer presentation, 2007 Budget

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Linac Coherent Light Source Collaboration 24 October 2005

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  1. Linac Coherent Light Source Collaboration24 October 2005 • Immediate Issues • Progress Highlights • Conventional construction budget • Next steps

  2. Recent Events • SSRL User Meeting, 17 October 2005 • Pat Dehmer presentation, 2007 Budget • LCLS has high priority, high visibility, high likelihood of full funding • BES must get funding above its “line” to do LCLS without shutting down some facilities • BES is prepared to do this for LCLS IF we are ready

  3. Are We Ready? • We have had a setback in baseline readiness: • Conventional Facilities • I have already been forced to approve over $8M in BCRs • Title-II (30%) estimate for future work is 50% above Title-I • Electrical, Mechanical disciplines are 100% above Title-I • Cost growth in other areas • Undulator materials $750K up • RF-BPMs

  4. De-Scopes • Undulator Hall A/C redesign ~$3.5M savings • Other CF Economies - $ 7.5M • Still looking for $5M • further CF reductions might yield $1M-$2M • Flipping Mirrors - $2M • What else? • Reversible • No impact on commissioning and early operation • I need locally held contingency

  5. 17 November Dan Lehman Visit • We MUST show that we will be ready for the CD-3 Review ( 7-9 February 2006) • healthy CPR • trustworthy ETC • healthy contingency • Office of Science Watch List

  6. 7-9 February Lehman Review • Previous slide plus • Readiness to manage safe construction • Preliminary Safety Assessment Document • Plans for commissioning readiness • Response to recommendations

  7. 10-12 May 2005 Project Review Action Items from last review (cleared) 1. Issue the Request for Proposals for the CM/GC procurement by June 13, 2005; 2. The SLAC Director will conduct an assessment and report to BES by June 23, 2005 on the necessary SLAC resource commitments to ensure the project’s readiness to proceed with construction as a primary element of SLAC; and 3. Conduct the next DOE Review at SLAC in November 2005 (subsequently scheduled for December 6-8, 2005, and thence to 7-9 February so that 100% of Title-II architectural design may be presented).

  8. 10-12 May Project Review • Accelerator Physics Recommendations • Carry out a comprehensive study of the required hardware and environmental tolerances and document the results in a form easily accessible to all groups working on LCLS. Clearly indicate when feedback and feed-forward can be used to ease tolerances if passive solutions cannot be found by November 2005. OK • Develop the high-level software needed for commissioning. Assign programmers to this task by November 2005. Work to do • Injector/Linac Recommendations • Resolve schedule conflicts to achieve October 2005 waveguide installation by August 2005.OK • Continue to enlarge LCLS laser expertise with additional hires by June 2006. W. White, S. Gillevich, A.Miahnahri, J. Castro

  9. 10-12 May Project Review • Undulator Systems • Define clear roles and responsibilities for the LCLS Physics Liaison Support group in order to ensure adequate global integration and consideration of physics requirements and implications by June 2005. Further, if it is not already the intention of LCLS Project Management, the Accelerator Team Leader should formally be given the authority and responsibility to preside over this group.OK • Examine the opportunity to kinematically mount the undulator magnet onto the transverse slides of the cradle to allow a greatly simplified exchange during operations by September 2005. OK • Assess the feasibility and eliminate, if possible, the duplication of the multi-undulator section integration tests by October 2005 OK • Accelerate the development of a design verification test of a prototype RF/BPM system for deployment at ANL by mid-August 2005, if feasible.Started • Develop a complete integrated physics error tolerance budget that factors in civil construction constraints while taking into account the various optimization modes and tolerance zones that will likely be employed during commissioning and operations by October 2005.OK – much work since May • Develop a complete undulator systems engineering plan including decision trees to optimize integration, installation, alignment, commissioning, and operation planning by October 2005. OK – much work since May

  10. 10-12 May Project Review • Photon Beam Systems • The proposed change requests need to be processed with high priority. OK • The work to be done by LLNL needs to be prioritized and sequenced to reduce risk. Changes need to be detailed to LLNL so that the work done will eventually be productive and cost effective. Accommodating changes will require flexibility on the part of XTOD staffing. LLNL will have to approach the WBS 1.05 items with a flexible approach, and all divisions of SLAC should support that flexibility • Changes are the result of Front-End Enclosure re-design.NO MORE time for improvements here • Budget pressures force deletion of “flipping mirrors” – This is top of my list for restoration • Engineering designs need to be completed with scrutiny by and support from radiation physicists at SLAC. The PPS at hard X-ray light sources (e.g., the Advanced Photon Source) need to be studied and considered. • Beam Dump, Front End Enclosure radiation safety issues have been settled…. • PPS design, testing, configuration control, etc must be settled for the Injector

  11. 10-12 May Project Review • Controls • The project should resolve the issue of electronic design engineering (and associated support infrastructure) for the controls team, using either the matrix model already successful in the software area, or by hiring dedicated electronics engineers (and designers and technicians) directly into the group. This needs to be accomplished without disrupting the areas that are already working well. The project needs to be made appealing to engineers who might be concerned about their long-term future. I believe this is OK • The project requires a full-time resident controls group leader, and a plan should be developed to expedite this transition. If possible, this plan should include retention of the current group leader to direct the EPICS integration activities. In Process

  12. 10-12 May Project Review • Conventional Facilities • Review the management and support staffing at all levels to ensure the level of competence, experience, and availability reflects the integrated schedule requirements. Accelerated CF staffing.Workload still heavy. $?? • Immediately resolve the process of implementing the procurement for the CM/GC contract. Use the existing A/E to deliver an integrated design at the 30 percent point of Title II design that includes a constructability review. OK • Conduct a thorough review of all design parameters that affect the environmental and physical dimensioning of the tunnel structures and reflect the least conservative physics values that can be addressed through other technical means. (refers to floor stability and temperature control )OK • Update the risk registry and project planning approach to reflect an adequate mitigation strategy in view of the 50 percent cost overruns for the first two bid packages. Events have overtaken this one –Jacobs suggests 1.1X FY2005 prices to account for market pressures • Quantify the plan for schedule recovery in the conventional facility activities based on the current understanding of schedule loss created by the delayed CM/GC contract award. Turner Construction is working on this – Highly parallelized construction activity to recover time – Watch limitations from site access and funding authority for FY2006

  13. 10-12 May Project Review • Cost, Schedule and Funding • Benchmark the proposed durations from the CM/CG Statement of Work to award with the experience of the very similar Molecular Foundry CM/CG contract to ensure that the current plan is realistic by June 1, 2005. In process • Process BCRs as frequently as needed—as Title II activities wind down and project construction activities commence, processing BCRs monthly will create problems.OK • Consolidate Level 4 CCB’s to ensure that the impact on all technical areas is included. OK

  14. 10-12 May Project Review • Project Management • Award the GC/CM contract as soon as possible. We couldn’t agree more - OK • Identify the specific needs for the LCLS project to ensure that adequate SLAC resources are provided to fully support the LCLS construction as a primary element of SLAC. This includes the management needs of the CM/GC contract including the interface between the A/E and the CM/GC contracts by July 15, 2005. Improved – not necessarily done • Clear roles and responsibilities need to be identified and communicated for the SLAC organization units. Ensure the SLAC organizations understand how they support the accomplishment of the LCLS project by July 15, 2005. Much improved – LCLS construction autorization checklist – Still work to do here- SLAC is a neural network • Integrate the baseline change control boards into a single board that evaluates technical, cost, and schedule risks and changes. The LCLS project should ensure that both ANL and LLNL input are adequately linked to the change control process by July 1, 2005. ???Combine Risk and CCB??? • Ensure that interface and requirements management is effective. Specific major project decisions on technical changes need to be scheduled to ensure that decisions are timely. The project parameters list (PRD 1.9-001 rev 1) needs to be updated, reviewed, approved, and maintained by the integrated change control board by July 15, 2005. Getting better with ICDs

  15. 10-12 May Project Review • ES&H • Clarify the role and responsibilities of the Citizens Committees by June 30, 2005. In process – We are learning lessons by exercising the system • Develop an ES&H plan. Include delivery dates for completion of the LCLS ES&H elements, ES&H staffing, and SLAC ES&H support for the LCLS project by July 31, 2005. LCLS ISMS, Construction Safety Plan, new chapters in SLAC ES&H manual • Compile technical specifications and safety criteria for equipment that is being developed by LCLS and its collaborating laboratories and adopt the “best practices” to be uniformly used by August, 31 2005. Much improved • Review LCLS systems that are used by other SLAC organizations and develop a common safety program for shared use before the next DOE review.Schultz working group

  16. 10-12 May Project Review • LUSI MIE • Include a member of the MIE management team on the LCLS Change Control Board. OK de facto- John Arthur – seeking a replacement • Create an “Implementation Plan” that formalizes a mutual agreement to coordinate the division of resources between the instrument MIE and LCLS projects. To be done- right now this is understaffed

  17. Commissioning/Operations Planning • https://www-lcls-internal.slac.stanford.edu/slaconly/LCLS-ComOps-WG/WG%20Records.htm • Responsible for ensuring completion of the Safety Assessment Document • Address Accelerator Readiness preparations, including Verification of hazard controls specified in the Safety Assessment Document [ANL, LLNL input required] • Orderly handover of operations control of LCLS systems to the Operations Group • Orderly handover of maintenance responsibilities for accelerator hardware to appropriate target groups at SLAC • Provide commissioning/operations plans and milestones for each stage of accelerator commissioning • Coordinate the creation of software applications to facilitate commissioning and efficient operation

  18. Courtesy L.Xiao LCLS RF Gun Fab. • Dual Feed • Suppresses the time dependent dipole kick • Matching phase for 2 feeds by holding mechanical tolerances on both arms • Z-coupling (instead of -coupling) • Pulsed heating reduced + easier machining • Racetrack shape compensates for stronger quadrupole mode • Overcoupling  =2 • 15 MHz mode separation adopted • Push-Pull deformable tuners • Replace plungers • Shaping of RF pulse for reducing average power • 4kW -> 1.8 kW ; cooling channels designed for handling 4kW • Reduce reflected power from gun • Gun fabricated at SLAC • RF design complete • Mechanical model in progress • 120Hz heat calculations under way • LCLS-TN-05-3.pdf • L. Xiao, et al., “Dual feed RF gun for the LCLS”, SLAC-PUB-11213, May 2005, http://www.slac.stanford.edu/pubs/slacpubs/11000/slac-pub-11213.html ; to be published in the proceedings of the 2005 Particle Accelerator Conference, 16-20 May 2005, Knoxville, TN; also to be published at the Joint Accelerator Conference Website ( http://www.JACOW.org ) • 120 MV/m • What gives a Cu cathode good QE? • Can we run the gun in the vault prior to or during the 2006-2007 shutdown? • After all these years…

  19. 1.3 Linac LCLS Klystron Injector Quad BC-1 Dipoles Fab Complete first article ordered measured

  20. 1.4 Undulator Systems • Assembly, first articles Awarded

  21. Baby Pictures

  22. Baby Pictures (cont’d) Magnetized blocks Magnet Poles

  23. 1.9 Conventional Facilities • Sector 20 Injector Magnet Meas. 2/28/06 Completion

  24. FFTB Shielding Sector 24 Stairs

  25. Next Steps • Construction manager • Kickoff 19 October • Construct road? • Construct tunneling portal? • Plan FFTB decommissioning • Date will be between April and June • We must make a firm commitment to SLAC soon

  26. 13 March Validation of EVMS • To be conducted by DOE Office of Engineering & Construction Management • Project activities may proceed while any/all findings are cleared • Just keep swimming To be conducted by DOE Office of Engineering & Construction Management Project activities may proceed while any/all findings are cleared Just keep swimming

  27. End of Presentation

  28. Monday, October 24thPlenary Session Location: Redwood Rooms 8:30 Project Status (Galayda) [30 min] 9:00 Project Management (Reichanadter) [30 min] 9:30 Project Safety Integration (Scharfenstein) [30 min] 10:00 break 10:30 Commissioning/Safety Assessment Doc. (Schultz) [30 min] 11:00 CF Status and Issues (Saenz) [60 min] 12:00 lunch Afternoon Parallel Sessions Redwood A/B1:00 EVMS Training – Part 1 (Mast, 1 hr) (All System Managers, WBS Managers, CAM's and Project Office personnel required) 2:00 MPS/BCS/PPS (Moeller, 30 min + 30 min) 3:00 Radiation Physics Issues (Rokni/Mao, 30 min + 30 min) Redwood C/D 2:00 Management Session – CD3b Readiness (Reichanadter, 1 hr) (Galayda, Reich, Boyce, Sisson, Hislop, Scharfenstein, Saenz, Arthur, Schultz, Chan, Mast, Milton, Bionta, Emma) 4:00 EVMS Training – Part 2 (Mast, 1 hr) (all System Managers, WBS Managers, CAM's and Project Office personnel required) Tuesday, October 25thUndulator Systems Location: Redwood A/B8:30 System status (Milton, 30 min) 9:00 Design of undulator supports (Sharma, 30 min) 9:30 Total wakefield budget (Nuhn, 30 min) 10:00 BPM design (Lill, 30 min) 10:30 break 10:45 Vacuum chamber and BFW (Walters, 30 min) 11:15 Undulator measurement plans (Wolf, 30 min) 11:45 WPM/HLS Review summary (Nuhn, 30 min) 12:15 Quadrupole design status (White, 30 min) 12:45 lunch Conventional Facilities Location: Redwood C/D2:00 MMF (Sevilla, 30 min) 2:30 Sector-20 (Cutino, 30 min) 3:00 VE /Descope Options (Galayda, 60 minutes) 6:30 pm Dinner (Compadre’s Mexican Restaurant 3877 El Camino Real, Palo Alto, CA

  29. Tuesday, October 25thUndulator Systems Location: Redwood A/B8:30 System status (Milton, 30 min) 9:00 Design of undulator supports (Sharma, 30 min) 9:30 Total wakefield budget (Nuhn, 30 min) 10:00 BPM design (Lill, 30 min) 10:30 break 10:45 Vacuum chamber and BFW (Walters, 30 min) 11:15 Undulator measurement plans (Wolf, 30 min) 11:45 WPM/HLS Review summary (Nuhn, 30 min) 12:15 Quadrupole design status (White, 30 min) 12:45 lunch Conventional Facilities Location: Redwood C/D2:00 MMF (Sevilla, 30 min) 2:30 Sector-20 (Cutino, 30 min) 3:00 VE /Descope Options (Galayda, 60 minutes) 6:30 pm Dinner (Compadre’s Mexican Restaurant 3877 El Camino Real, Palo Alto, CA

  30. Wednesday, October 26th Controls Location: Redwood A/B 8:30 System status: (Dalesio, 30 min) 9:00 High-level applications: (Fairley/Allison, 25 min) 9:25 Undulator controls (Stein, 20 min) 9:45 OTR/YAG plans (Sheng, 15 min) 10:00 Wire-scanner plans (Murray, 15 min) 10:15 break 10:30 Linac BPM upgrade plans (Straumann/Cecere, 30 min) 11:00 LLRF/feedback (Kotturi/Allison, 20 min) 11:20 Magnet controls (Luchini, 20 min) 11:40 Laser controls (Sheng, 20 min) 12:00 lunch Afternoon Parallel SessionsGun/Injector/Linac (Readiness for Dec. ‘06 commissioning) Location: Redwood A/B 1:00 Drive Laser & RF Gun Status (Loos, 30 min) 1:30 Injector (Limborg, 30 min) 2:00 GTF plans (Schmerge, 30 min) 2:30 break 3:00 Linac/BC1 (Emma, 30 min) 3:30 Trajectory stability (J. Wu, 30 min) 4:00 LLRF and feedback systems (Akre/Kotturi, 30 min) 4:30 CSR bunch length monitor (Travish/Dunning, UCLA, 30 min) XTOD SystemsLocation: Redwood C/D 1:00 XTOD Configuration Overview (D. McMahon, 20 min) 1:20 Fast-Close Valve, Fixed Mask, Slit, and Solid Attenuator (J. Trent, 30 min) 1:50 Gas Attenuator (S. Shen, 30 min) 2:20 X-Ray Diagnostics (S. Hau-Riege, 25 min) 2:45 break 3:00 FEL Offset Mirror System (M. Pivovaroff, 30 min) 3:30 Tunnel Vacuum System (L. Tung, 30 min) 4:00 Vacuum PLD (K. Kishiyama, 20 min) 4:20 EPICS Controls (S. Lewis, 20 min) 4:40 Flux Calculation Viewer (L. Ott, 20 min)

  31. Consolidation of XES instrumentation effort • Old Plan: XES to build a generic set of instrument components (infrastructure PPS, MPS, network) • New Plan: XES builds one instrument for soft x-ray Atomic Physics studies

  32. Short Bunch Generation in the SLAC LinacOffers a glimpse of pump-probe dynamics with LCLS Damping Ring(ge 30 mm) 50 ps FFTB RTL 9 ps 0.4 ps SLAC Linac Add 12-meter chicane compressor in linac at 1/3-point (9 GeV) 1 GeV 20-50 GeV Existing bends compress to <100 fsec 1.5% ~1 Å 30 kA 80 fsec FWHM 28 GeV Possible to test XR diagnostics, optics

  33. TW laser Partial overlap

  34. Laser induced non-thermal melting of InSb Crossed-beam topography No laser Laser on

  35. FEH 1.5 Scope: NEH, Tunnel, FEH Pulse Split and Delay X-Ray Beam Transport Tunnel System Monochrometer Far Hall Direct Imager and Tank NEH Flipper Mirror

  36. DE/E Over-compression Under-compression z 2sz V = V0sin(wt) Dz = R56DE/E RF Accelerating Voltage Path Length-Energy Dependent Beamline Recent Accelerator R&D – P. Emma, et al. SLAC-PUB-10002, 2003 DE/E DE/E back of bunch front of bunch 2sz0 z z

  37. z 60 m x-ray Power <2 fsec fwhm

  38. UCLA Electron Gun for LCLS • BNL/SLAC/UCLA “Collaboration Gun” • at the heart of four FELs • High-Gain Harmonic Generation at BNL Accelerator Test Facilty • VISA Experiment, 800 nm SASE, BNL ATF • Low Energy Undulator Test Line, ANL • Source Development Lab seeded FEL, BNL • D.T. Palmer et al., “Emittance studies of the BNL/SLAC/UCLA • 1.6 cell photocathode rf gun,” in Proc. of the 1997 Particle • Accelerator Conf., p. 2687.

  39. http://www-xfel.spring8.or.jp/Index.htm

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