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LCLS Update John N. Galayda, SLAC October 20, 2003

LCLS Update John N. Galayda, SLAC October 20, 2003. Since the April 2002 Review Construction Schedule, Funding Guidance CD-1 Basic Energy Sciences 20-Year Roadmap Start of Project Engineering Design May 2003 Review What’’s Next. The World’s First Hard X-ray Laser. Capabilities.

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LCLS Update John N. Galayda, SLAC October 20, 2003

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  1. LCLS UpdateJohn N. Galayda, SLACOctober 20, 2003 • Since the April 2002 Review • Construction Schedule, Funding Guidance • CD-1 • Basic Energy Sciences 20-Year Roadmap • Start of Project Engineering Design • May 2003 Review • What’’s Next John N. Galayda, SLAC

  2. The World’s First Hard X-ray Laser John N. Galayda, SLAC

  3. Capabilities Spectral coverage: 0.15-1.5 nm John N. Galayda, SLAC

  4. Capabilities Spectral coverage: 0.15-1.5 nm To 0.5 Ǻ in 3rd harmonic Peak Brightness: 1033 Photons/pulse: 1012 Average Brightness: 3 x 1022 Pulse duration: <230 fsec Pulse repetition rate: 120 Hz John N. Galayda, SLAC

  5. Capabilities Spectral coverage: 0.15-1.5 nm To 0.5 Å in 3rd harmonic Peak Brightness: 1033 Photons/pulse: 1012 Average Brightness: 3 x 1022 Pulse duration: <230 fsec Pulse repetition rate: 120 Hz Upgrade – more bunches/pulse John N. Galayda, SLAC

  6. SLAC Linac Undulator Hall Two Chicanes for bunchcompression Near Hall Far Hall Linac Coherent Light Source Project Description Injector John N. Galayda, SLAC

  7. Photon Beam Handling Systems • X-ray Transport, Optics and Diagnostics • Front end systems – attenuators, shutters, diagnostics • Optics – the prerequisites for LCLS experiments • X-ray endstation systems Hutches, Personnel Protection • Computer facilities for experiments • Laser for pump/probe experiments • Detectors matched to LCLS requirements • Systems for first experiments in A/M/O physics Linac Coherent Light Source John N. Galayda, SLAC

  8. Conventional Construction • Final Focus Test Beam Extension • Hall A • Tunnel • Hall B John N. Galayda, SLAC

  9. Room for 8-12 additional undulator lines Conventional Construction • Transport • Undulator • Hall A • Tunnel • Hall B • 3 Beams/mirror • Expansion John N. Galayda, SLAC

  10. Since the April 2002 DOE Review • Acquisition Execution Plan Approved 10/2002 • Preliminary Project Execution Plan Approved 9/2002 • Critical Decision 1 Approved 10/2002 • Guidance for Funding Profile Updated 1/2003 • BES 20-year Roadmap Review 2/2003 • Environmental Assessment Approved 3/2003 • Authorization to spend PED funds 3/2003 • SC-81 Lehman/Carney Review 5/2003 • Critical Decision 2A Approved 7/2003 John N. Galayda, SLAC

  11. FY2001 2002 FY2002 2003 2004 FY2003 2005 FY2004 FY2005 2006 FY2006 FY2008 FY2007 FY2009 Estimated Cost, Revised Schedule • $200M-$240M Total Estimated Cost range • $245M-$295M Total Project Cost range • FY2005 Long-lead purchases for injector, undulator • FY2006 Construction begins • January 2008 FEL Commissioning begins • September 2008 Construction complete XFEL Commissioning CD-2b Title I Design Complete CD-1 CD-2a CD-3b CD-0 CD-3a CD-4 John N. Galayda, SLAC

  12. LCLS Organization Chief Engineer – Mark Reichanadter • US CMS Project Engineer • Joins SLAC June 2003 LLNL-LCLS Project Director Richard M. Bionta LLNL-ANL Project Director Stephen V. Milton • LEUTL FEL accelerator research program at ANL-APS John N. Galayda, SLAC

  13. 20-Year BES Facilities Roadmap Workshop February 22-24, 2003 Doubletree Hotel and Executive Meeting Center 1750 Rockville Pike Rockville, MD 20852 • Saturday and Sunday Facility Presentations • Sunday Night and Monday Report Writing John N. Galayda, SLAC

  14. Linac Coherent Light Source – Committee Conclusion • Essential for exploring future science using intense femtosecond coherent X-ray beams • DoE Critical Decision 0 and 1 have been approved Recommend continued strong support John N. Galayda, SLAC

  15. SLAC Akre Limborg Bentson Nuhn Bong Saenz Dowell Schmerge Emma Welch Galayda ANL Patric den Hartog Steve Milton Elizabeth Moog John N. Galayda, SLAC

  16. L I N A C H O U S I N G S I D E W A L L e t e r w / 3 0 d e g p o l e r o t a t i o n s M A G N E T I C e c t r o m S p S C 2 X - Y C o r r e c t o r 1 M P E E B 1 V D L 0 E A O N H V U T G 1 A S F C R E 1 0 ' H I G H 1 V M L C A 1 S Y C V 2 - X F 1 C 2 1 S C 0 ' F L A I C L o w - E D u m p C N E A L E C R A H T O O L I N A C H O U S I N G S I D E W A L L R U 1 3 ' - 3 . 2 7 " S I N L G I N S I A 3 D E C 2 V C S M E L A P 2 C V B 1 M W R C O T A O H 3 L M E L E P 1 V 4 0 B L ' C R A S A V E C C N E T L E L R I A T 7 7 ' ' H H I I G G H H G O H R T S O 5 M U 6 P C B R S C 5 C S E 3 M 4 M C 2 M P R B T O O 1 0 E D I Q 2 F I 0 E 2 Q O C E 6 M A R 7 E P T C I K B S C O I K 3 N F R 3 R T 0 O T E Q O 4 L I 0 E 8 Q 1 N 7 C M 0 4 S S A P R 1 0 ' H I G H W B T C O 8 M P B 2 0 S W 5 R T O L I N A C H O U S I N G S I D E W A L L L I N A C H O U S I N G S I D E W A L L 0 1 C 1 S 0 E C 3 5 P E N . 2 1 - 1 M 0 P E N . 2 0 - 1 6 6 S P E N . 2 0 - 1 5 W C R 9 T 4 1 C 9 O M 0 P E N . 2 0 - 1 7 M S 1 B C 0 P B 3 4 M 2 " B Q 2 1 0 0 1 Q 4 8 1 M M 2 1 2 2 9 . 4 0 1 R M 0 2 M 1 S 3 0 C M Q Q 1 T C O B W P M P S A C C E L T U B E Q O S A C C E L 1 0 ' A C C E L E R A T O R B 1 0 ' A C C E L B E 1 0 ' 9 P R B T O 0 7 1 R 1 R M 0 1 M T P P 3 " E O M 0 M S E C T I O N 2 0 - 8 C I B S E C T I O N 2 0 - 8 A R S E C T I O N 2 0 - 8 B V A L V E U P 9 T S E C T I O N 2 1 - 1 B D A - T U B E P 0 E B E O H E Q B Q M Q M O T R 1 0 T 0 0 0 0 C M 6 P E P - 2 H E / L E B Y P A S S 2 3 4 1 S B P M 1 3 L E B E A M D R I F T S E C T I O N A C C E L E R A T O R S E C T I O N S L I N A C H O U S I N G S I D E W A L L C H O U S I N G S I D E W A L L L I N A Long Lead Procurements, FY2005 - Injector • The LCLS Injector • Laser and Laser Room • Main Mechanical Systems • Early integration with SLAC Linac • Laser Systems Assembly and Startup in FY2005 John N. Galayda, SLAC

  17. Long-Lead Procurements, FY2005 - Linac • Selected Linac Systems • Superconducting Wiggler • X-band RF system • Chicane Magnets John N. Galayda, SLAC

  18. Long-Lead Procurements, FY2005 - Undulator Systems • Undulator Hardware • Magnet Blocs • Magnet Poles • Strongback • Undulator Measurement System • Final “shimming” of magnets at SLAC • Complete Delivery of Undulators by June 2007 John N. Galayda, SLAC

  19. Long-Lead Procurements, FY2005 – Magnet Measurement • To be installed at SLAC • Based on APS system • 5 m granite bench • Probe positioning system • Hall probe system • Computer system • Control and data analysis software • Cost estimate based on detailed estimate escalated for FY2005 John N. Galayda, SLAC

  20. FY2005 Long Lead Procurements ($K, as spent) 28% Contingency (67% contingency on Superconducting wiggler & spare) To be reimbursed to TEC when Special Spares Funds are allocated. John N. Galayda, SLAC

  21. Review Conclusions • Green Light for approval of CD-2A in June 2003 • This allows DOE-BES to include $30M in FY2005 budget request • Next DOE review March 2004 • Formal quantitative risk assessment/management system • Settle the baseline (scope, schedule, cost) for the entire project • Several recommendations for R&D • 2nd undulator prototype – alternative strongback material? • Undulator vacuum chamber • Electron beam diagnostics • X-ray diagnostics John N. Galayda, SLAC

  22. LCLS Experiments • LCLS Scientific Advisory Committee • FY2006-2009 funding for construction of experiment stations Roger Falcone UC Berkeley, USA, Chairman Nora Berrah Western Michigan University, USA Carl Branden Karolinska Institutet, Sweden Phil Bucksbaum University of Michigan, USA Robert L. Byer Stanford University, USA Hans Fraunfelder LANL, USA Stephen R. Leone UC Berkeley, USA Margaret Murnane University of Colorado-Boulder, USA Jochen R. Schneider HASYLAB, Germany Francesco Sette ESRF, France Sunni Sinha UCSD, USA Dietrich von der Linde University of Essen, Germany John N. Galayda, SLAC

  23. New Idea for shorter pulses – Emma, et al. SLAC-PUB-10002 LCLS – Chirped-Pulse Bunch Compression 150 MeV z  0.83 mm   0.10 % 250 MeV z  0.19 mm   1.8 % 4.54 GeV z  0.022 mm   0.76 % 14.35 GeV z  0.022 mm   0.01 % 6 MeV z  0.83 mm   0.1 % Lh L =0.6 m rf=180 rf gun L0 L = 9 m rf = -38° L = 330 m rf = -43° L = 550 m rf = -10° L = 6 m undulator L = 120 m L1 L2 L3 X ...existing linac BC-1 L = 6 m R56= -36 mm BC-2 L = 22 m R56= -22 mm DL-1 R56  0 DL-2 R56 = 0 John N. Galayda, SLAC

  24. Bunch Compression DE/E DE/E DE/E Over-compression Under-compression 2sz0 z z z 2sz V = V0sin(wt) Dz = R56DE/E RF Accelerating Voltage Path Length-Energy Dependent Beamline John N. Galayda, SLAC

  25. peak current reduced 2Dx = 50 mm peak current preserved 2Dx = 250 mm Choose slot for shortest e- pulse, while retaining full peak current John N. Galayda, SLAC

  26. z 60 m x-ray Power 2 fsec fwhm John N. Galayda, SLAC

  27. Summary • 2-3 fs FWHM x-ray pulse length possible in LCLS with baseline design + simple foil • Photons per pulse reduced (1012→ 1010) • Pulse length adjustable with stepper motor • Precisely spaced double pulses available • <1 fs should be possible with modified compression parameters and further study → single coherent spike! John N. Galayda, SLAC

  28. Future Possibilities of the Linac Coherent Light Source To be published in Journal of Synchrotron Radiation John N. Galayda, SLAC

  29. The SLAC Linac as an FEL Driver • LCLS 4.5-14.3 GeV 120 Hz. • Possibilities • 50 GeV beam energy – XFEL at 100 keV? • Requires extremely high quality electron beam • Pulse to pulse energy variation at 120 Hz. • Small steps for FEL wavelength tunability • Large steps for multi-wavelength multi-undulator operations • 300 ns macro pulse with up to 32 micro pulses John N. Galayda, SLAC

  30. SLAC commitment Statement from the SLAC Director “The LCLS and its expansion are critical ingredients in the broad scientific portfolio of the SLAC site for the coming decades. I encourage the LCLS team to consider the unique possibilities that the full capabilities and flexibility of the SLAC linac, including electron beams up to 50 GeV, will offer. Further, I encourage them to integrate these possibilities into the plans for the expansion of LCLS beyond its baseline operating parameters.” “SLAC and its talented staff of accelerator physicists and engineers routinely operate the linac in a multi-user mode with high operational efficiency. For example, the linac currently serves to inject the B-factory in parallel with fixed target high energy physics experiments and accelerator R&D. We expect that such operational flexibility will enable the linac, with suitable modifications, to serve the needs of an expanded LCLS well into the future.” John N. Galayda, SLAC

  31. Time to start planning Experiment Stations for the LCLS We are looking forward to some GOOD times. John N. Galayda, SLAC

  32. Actually, we are having a pretty good time already… John N. Galayda, SLAC

  33. Science Opportunities with SPPS J. Hastings SLAC/SSRL John N. Galayda, SLAC

  34. Short Bunch Generation in the SLAC Linac Damping Ring(ge 30 mm) 50 ps FFTB RTL 9 ps 0.4 ps <100 fs 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 John N. Galayda, SLAC

  35. SPPS Collaboration: Institutional Members APS Argonne Nat’l Lab BioCARS Copenhagen Univ. DESY NSLS Brookhaven Nat’l Lab SLAC/SSRL UC Berkeley Univ. of Michigan Univ. of Uppsala John N. Galayda, SLAC

  36. John N. Galayda, SLAC

  37. The SPPS Source and Characteristics Calculated Undulator Output Ee = 28 GeV 3.2 nC λu = 8.5 cm K ~ 4 Eph = 9.1 keV Intensity in mono acceptance 2 x 107 photons/per pulse Measured Output 2 x 107 photons/per pulse Emittance 0.4 nm-rad horiz (~3 - 3rd gen ring) 0.06 nm-rad ver (~.03 - 3rd gen ring) Monochromator acceptance Typical 10 Hz operation John N. Galayda, SLAC

  38. spindle axis  X-rays Diffraction from Salol Salol Phenylsalicylate C13H10O3 Orthorombic Pbca a=7.961 Å b=11.258 Å c=23.402 Å = ==90°  (0 16 0)=0.3 mdeg ~106 photons/pulse 1 x 1 mm2 1% bandwidth 300 s, 10 Hz 9.365 keV image int. CCD at 120 mm Collaboration & samples E. Weckert, HASYLAB John N. Galayda, SLAC

  39. Single pulse exposures • Probing the rocking curve • 18 steps: =-1.0° to =+0.4° • Single exposures • gated CCD, 62 ms Intensity fluctuations 90 exposures @ 10 Hz, gated CCD, 62 ms =0, Max. of rocking curve John N. Galayda, SLAC

  40. Next SPPS Run 17 November 2003-15 February 2004 John N. Galayda, SLAC

  41. End of Presentation John N. Galayda, SLAC

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