1. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 LCLS Photon Systems Status John Arthur SLAC

2. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 LCLS Photon Systems Includes LCLS x-ray and laser groups X-ray Transport, Optics and Diagnostics (XTOD) managed by LLNL (Richard Bionta) X-ray Endstation Systems (XES) managed by SLAC (Stefan Moeller) LCLS Laser Systems managed by SLAC (Bill White)

3. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 XTOD Scope Transport the x-ray beam, in vacuum, to all the experimental stations Condition the x-ray beam, with attenuators and apertures Analyze the x-ray beam, with sophisticated diagnostics

4. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 XES Scope The X-Ray Endstation Systems group provides the infrastructure required for experimenters to make best scientific use of the LCLS radiation safely

5. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 Laser Group Scope The Laser group coordinates laser design and acquisition throughout the LCLS. Lasers will be used in the electron gun and x-ray experimental areas, and also possibly for accelerator diagnostics and alignment.

6. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 LCLS Designs are maturing FEE instrumentation at concept review stage Conventional facilities at Title 2 stage

7. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 32 m GAS ATTEN SOLID ATTEN STOP COLLIM Mirrors STOP FEE 7 ft Fe 3 ft concrete 4 ft Fe

8. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 NEH Flipper Mirrors Hutch 1 9.5x10m Hutch 2 Hutch 3

9. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 19ft tunnel 46ft tunnel 212ft 28x33ft hutch 29x33ft hutch 36x33ft hutch 10ft Fire door 10ft 6ft Toilets Entrance 19ft tunnel (450 ft long) 15x25ft control cabin FEH

10. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 Building up the X-Ray Systems XTOD group has about 20 people now XES has 1 person and 2 openings LUSI has 5 openings now, more soon 2 other x-ray related hires at LCLS, 1 opening

11. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 LCLS CE costs are expected to be high May will need to cut some scope Need to prioritize possible cuts

12. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 Possible Scope Reductions Eliminate flipper mirrors (~$1M) Reduce length of x-ray transport tunnel by 10% (20m, ~$0.5M)

13. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 20ft tunnel 30ft transition 46ft tunnel 212ft 28x33ft hutch 29x33ft hutch 36x33ft hutch Entrance 14ft tunnel Reduced scope FEH design hutch extended single beamline

14. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 Effects of reductions No flipper mirrors: beamline shared in FEH Shorter tunnel: side beams closer to each other by 10% (1.8m vs 2m)

15. John Arthur Photon Statusjarthur@slac.stanford.edu October 18, 2005 Summary Major staff increase ongoing Experimental needs coming into focus Need to consider possible scope cuts to save $