1. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX X Ray Transport, Optics, and Diagnostics, Overview Facility Advisory Committee Meeting October 12-13, 2004 This work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under Contract No. W-7405-Eng-48.

2. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Outline Overall Scope General Goals Technical Highlights Risks Plans including the Continuing Resolution Conclusions

3. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX XTOD Transports Photons from e - Dump to FEH Undulator Hall Electron Dump Front End Enclosure Near Experimental Hall X-Ray Tunnel Far Experimental Hall Electron Transport Linac

4. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Fast close valve Slit A Muon shield Gas Attenuator Solid Attenuator Slit B PPS Muon shield Direct Imager Indirect Imager Comissioning: Spectrometer, Total Energy PPS Electron Beam Photon Beam Electron Dump Front End Enclosure NEH 1.5 Scope: Front End Enclosure/ Near Experimental Hall Flipper Mirror

5. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Flipper Mirror X-Ray Beam Transport Pulse Split and Delay Far Hall Direct Imager and Tank System Monochrometer FEH Tunnel NEH 1.5 Scope: NEH, Tunnel, FEH

6. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX XTOD Goals Provide vacuum path from end of undulator to hutches in Far Hall with capability of attenuating beam to synchrotron levels. Provide necessary diagnostics to commission the LCLS and monitor its performance. Detect X-Ray Photons in Far Hall. Demonstrate detection and optical techniques that would be useful to users.

7. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Main Imaging Diagnostic: Scintillator/Microscope Advantages Adjustable resolution to  1  m. X-Ray sensor decoupled from CCD Disadvantage Placed directly in beam CCD Camera Microscope Objective LSO or YAG:Ce crystal prism assembly X-ray beam

8. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Direct Imager (Placed directly in beam) Indirect Imager (Sees only a low intensity reflection) Turbo pump Be Isolation valve Indirect Imager sees low intensity reflection

9. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Gas and Solids Provide Attenuation Autocad Gas Attenuator Solid Attenuator Use Gas Use Solids * For a transmission of 10 -4

10. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX XTOD Risks Technical risks listed in registry include attenuator performance and instrument backgrounds (mitigated by modularity, redundancy and placement) Funding profile requires significant design and even conceptual design efforts required when funding commences (CR may help) Designs and concepts based on theoretical calculations of beam characteristics (current work)

11. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX 2-3 mJ FEL 20 mJ Spontaneous 3 mJ High energy core E  > 400 keV Detailed modeling will continue to be our major near term effort At entrance to NEH, FEL tuned to 8261 eV Fundamental Expected LCLS beam profile contains FEL and Spontaneous halo

12. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Spontaneous halo has rich spectral and spatial structure 0 < E < 10 keV 7.6 < E < 9.0 keV10 < E < 20 keV20 < E < 27 keV 20 mm Near-Field Spontaneous Radiation Patterns in FEE, at position of gas attenuator (88 m from End-of-Undulator)

13. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX We are beginning to calculate detector responses to LCLS beam Direct imager exposed to full 8 keV FEL + Spontaneous through solid attenuator

14. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX XTOD WBS Organized by Function 1.5 XTOD.1 Mgmt..2 Ctrls..3 Mech&Vac..4 Optics.5 Diagnostics Controls for all instruments Pumps, pipes, and stands between instrument tanks, by room Masks Slits Flipper Mrr. Gas Atten. Solid Atten. Optic Tank Monochrom Split & Delay.6 Install Simulation Direct Imager Indirect Imager Diagnostic Tanks Spectrometer Calorimeter Coherence Shape Installation of all vacuum and instruments

15. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Schedule emphasizes early completion of commissioning diagnostics

16. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Activities planned during CR Modeling and Simulation Spontaneous / FEL simulation along beam line and during startup Calculate Beam sizes and effects of apertures at Gas Attenuator, Cameras, etc Optimize response of detectors to simulated beam Component R&D Spectrometer Total Energy Damage Mechanical & Vacuum Gas Attenuator Calculations

17. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Activities after CR Detailed Design of FEE in preparation for construction in FY06 Mech. & Vac. through Near Hall Slit Direct Imager R&D & Prototype Gas attenuator Total Energy Spectrometer Indirect Imager

18. Richard M. Bionta XTOD Overviewbionta1@llnl.gov October 12, 2004 UCRL-PRES-XXXXX Summary XTOD transports x-ray beam to users and provides optics and diagnostics for LCLS commissioning and monitoring Basic imaging diagnostics and attenuator systems understood and supported by calculations and prototypes. The development of the other instruments will proceed in a serial fashion with priority given to commissioning diagnostics Beam models now exist allowing detailed modeling of the instrumentation. This will proceed during the Continuing Resolution. XTOD will be ready for serious R&D and Engineering effort after the CR in preparation for procurement and fabrication in FY06