1. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 1 LCLS Commissioning in 2008 J. Galayda, for The LCLS Construction/Commissioning Team DESY Oct. 8, 2008 LCLS Overview Construction Status Commissioning results Stability Day-to-Day Performance Short pulses Plans for 2009 LCLS Instruments

2. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 2 Linac Coherent Light Source at SLAC Injector (35º) at 2-km point Existing 1/3 Linac (1 km) (with modifications) Far Experiment Hall (underground) Near Experiment Hall (underground) New e  Transfer Line (340 m) X-ray Transport Line (200 m) Undulator (130 m) X-Ray Transport/Optics/Diagnostics

3. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 3 Linac-to-Undulator (227m) X-ray Transport (200m) Undulator Hall (175m) Beam Dump (40M) Front End (29m) Near Expt’l. Hall Near Experimental Hall 1.9 Conventional Facilities >84% complete Turner Construction Co. >90% complete Far Expt’l. Hall 64.6 m 14 m

4. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 4 Far Hall rebar lattice Tunnel construction complete 25 April 2008

5. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 5 Far Experimental Hall south rib Installing re-bar in the Far Experimental Hall Far Experimental Hall Structural Shell

6. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 6 LCLS Injector 100% Complete LCLS Linac >96% Complete Commissioning Complete 3/2008 Commissioning Complete 9/2007 Undulator >80% complete

7. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 7 dualfeed RF Gun Installed in March 2007

8. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 8 Injector Vault (Oct. ’07) transverse RF deflector RF gun 6-135 MeV booster linac OTR screens & wire- scanners

9. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 9 Beam Transport Hall 6/10/08

10. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 10 ANL Work >97% Complete Quadrupole Vacuum Chamber Undulator Segment RF Cavity BPM Girder

11. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 11 Undulator Hall First electrons 12/2008 Install Undulators 3/2009

12. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 12 Solid Attenuator Gas Attenuator Slit Start of Experimental Hutches 5 mm collimator Muon Shield Hard X-Ray Offset mirror system Pulse Energy Thermal Detector Gas Detector e-e- Direct Imager Hard x-ray Monochromator (K Spectrometer) Soft X-Ray Offset mirror system LLNL WBS 1.5 is >80% complete Front end X-ray optics being assembled All mirrors delivered; mirror figures meet spec Most diagnostics under assembly at LLNL X-Ray Transport/Optics/Diagnostics

13. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 13 Measured configuration should give 10 12 of photons @ 1.5 Angstrom in 100 fs pulse, the LCLS goal Will start FEL commissioning in this configuration

14. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 14 Slice Emittance at 135 MeV

15. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 15 LCLS-Quality Beam Demonstrated Electron beam emittance measurements 0.25 nC, 75 fs Electron beam emittance measurements 9.2 GeV point in linac 0.25 nC, 75 fs 14 GeV e-beam good enough for ~11 GW @ 8 keV

16. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 16 (3.3 days) May 24, 2008 00:01 to May 27 09:00 weekend run at 0.25 nC, with no tuning Emittance Stability at End of Linac  (  x  y ) 1/2 = 1.04  m Saturation at 1.5 Å in 100 m (assuming BBA, etc)

17. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 17 Normalized phase space centroid jitter after BC1 (~4% of rms beam size) D. Ratner Stability is not so far from the goal (~10%) … near end of linac (10-15% of rms beam size) RMS A xN = 14% RMS A yN = 9%  E/E jitter  0.03%  Q/Q jitter  1.5% RMS A xN = 3.9% RMS A yN = 3.4% Q = 0.25 nC 1-  beam size

18. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 18 Now measure BPM jitter both with transverse RF OFF, and then ON (at constant phase)  t  ±0.6 ps slope =  2.34 mm/deg 9  m rms 110  m rms TCAV ON TCAV OFF BPM Y Position (mm) Measuring Bunch Arrival Time Jitter eeee V(t)V(t)V(t)V(t) S-band (2856 MHz) BPM Timing Jitter (w.r.t. RF) = (110  m)/(2.34 mm/deg) = 0.047 deg  46 fsec rms Q = 0.25 nC

19. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 19 Time-sliced x-Emittance at Very Low Charge 20 pC 135 MeV 0.6-mm spot diameter 400 µm rms bunch length (5 A) TAIL (not same data) 0.14 µm

20. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 20  z  1  m ? 8 kA? LiTrack (no CSR)  x  0.4  m at  z  1  m Measurements and Simulations for 20-pC Bunch at 14 GeV Photo-diode signal on OTR screen after BC2 shows minimum compression at L2-linac phase of -34.5 deg. Horizontal projected emittance measured at 10 GeV, after BC2, using 4 wire-scanners. Y. Ding LCLS FEL simulation at 1.5 Å based on measured injector beam and Elegant tracking,with CSR, at 20 pC. LCLS FEL simulation at 1.5 Å based on measured injector beam and Elegant tracking, with CSR, at 20 pC. 1.5 Å, 3.6  10 11 photons I pk = 4.8 kA   0.4 µm PRELIMINARY

21. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 21 20-pC Bunch at 4.3 GeV, 15 Angstrom Approaches a Longitudinally Coherent Single Spike Y. Ding 15 Å 15 Å, z = 25 m, 2.4  10 11 photons, I pk = 2.6 kA,   0.4 µm (power profile at z = 25 m varies from shot to shot due to noisy startup) 1.2 fs z = 25 m LCLS FEL simulation at 15 Å based on measured injector beam and Elegant tracking,with CSR, at 20 pC. LCLS FEL simulation at 15 Å based on measured injector beam and Elegant tracking, with CSR, at 20 pC.

22. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 22 LCLS Installation and Commissioning Time-Line LTU/Und/Dump Install Re-commission Inj/BC2 to SL2 LTU/UndComm. First Light in FEE PEP-II run ends FEE/NEH Install PPS Cert. LTU/Dump FEH Install CD-4 (7/31/2010) X-Rays in NEH First Light in FEH NEH Operations/ Commissioning JJFFMMAAMMJJJJAASSDDJJFFMMAAMMJJJJAASSOONNDDJJFFMMAAMMJJJJ ON A 2008 2009 2010 2008 2009 2010 Down PPS AM now Linac/BC2 Commissioning FEEComm. May 2, 2008 FEH Hutch BO Und. Seg. Install

23. John Galayda galayda@slac.stanford.edu DESY Workshop October 8, 2008 23 Atomic Physics (LCLS) Atomic Molecular and Optical Physics 8/2009 Plasma and Warm Dense Matter Materials/matter under Extreme Conditions Nanoscale Dynamics Coherent scattering at the in Condensed matter (LUSI) nanoscale (XCS) 3/2012 Structural Studies on Single Nano-particle and single Particles and Biomolecules molecule (non-periodic) (LUSI) imaging (CXI) 4/2011 Femtochemistry Pump/probe diffraction (LUSI) dynamics (XPP) 12/2010 Soft X-Ray Imaging & Spectroscopy (SXR) 12/2009 FEL Science/Technology Program developed by international team of scientists working with accelerator and laser physics communities SLAC Report 611 “ First Experiments” Realized within Concepts LCLS and LUSI Science with LCLS

24. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 24 Envisioned Placement of Experiments LUSI LCLS BESSY DESY LBNL SLAC

25. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 25 Find out what will be Schematic of AMO Instrument Build/buy and assemble – Jul-Dec 2008 Assembly & Testing – Feb-Jun 2009 Ready for first light – Jul 2009 July 2010

26. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 26 AMO Experiment Proposals for August 2009 Run 28 Proposals 206 Individual Signatories (82 from US) 15 Countries 13 US States 13 US Universities 4 DOE Labs >200% of beam time

27. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 27 For More LCLS Information LCLS Web Page http://lcls.slac.stanford.edu/ Instrument Descriptions and Specifications http://lcls.slac.stanford.edu/Instruments.aspx LCLS User Meeting 15-18 October http://www-conf.slac.stanford.edu/ssrl-lcls/2008/ Proposal Submission https://oraweb.slac.stanford.edu/apex/slacprod/f?p=188:1

28. John N. Galayda DESY Workshopgalayda@slac.stanford.edu October 8, 2008 28 Presentation Materials Thanks to: SLAC ANL LLNL Jess Albino Geoffrey Pile Richard Bionta John Arthur Bill Berg Donn McMahon Paul Emma Marion White Tom Fornek David Saenz David Schultz