X Ray Transport Optics and Diagnostics Overview Facility

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. October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

Outline Overall Scope General Goals Technical Highlights Risks Plans including the Continuing Resolution Conclusions October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

XTOD Transports Photons from e- Dump to FEH Electron Dump Linac Far Experimental Hall Undulator Hall Electron Transport October 12, 2004 XTOD Overview Front End Enclosure Near Experimental Hall X-Ray Tunnel UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

PPS Muon shield 1. 5 Scope: Front End Enclosure/ Near Experimental Hall NEH PPS Flipper Mirror Front End Enclosure Slit A Comissioning: Spectrometer, Total Energy Solid Attenuator Photon Beam Slit B Direct Imager Indirect Imager Gas Attenuator Fast close valve Electron Beam October 12, 2004 XTOD Overview Muon shield Electron Dump UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

FEH Pulse Split and Delay 1. 5 Scope: NEH, Tunnel, FEH X-Ray Beam Transport Tunnel System Monochrometer Far Hall Direct Imager and Tank NEH Flipper Mirror October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

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. October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

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

Indirect Imager sees low intensity reflection Be Isolation valve Direct Imager (Placed directly in beam) Indirect Imager (Sees only a low intensity reflection) Turbo pump October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

Gas and Solids Provide Attenuation Solid Attenuator Gas Attenuator Autocad Use Gas Use Solids * For a transmission of 10 -4 October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

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) October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

Detailed modeling will continue to be our major near term effort Expected LCLS beam profile contains FEL and Spontaneous halo 2 -3 m. J FEL 3 m. J High energy core Eg > 400 ke. V 20 m. J Spontaneous At entrance to NEH, FEL tuned to 8261 e. V Fundamental October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

Spontaneous halo has rich spectral and spatial structure 20 mm 0 < E < 10 ke. V 7. 6 < E < 9. 0 ke. V 10 < E < 20 ke. V 20 < E < 27 ke. V Near-Field Spontaneous Radiation Patterns in FEE, at position of gas attenuator (88 m from End-of-Undulator) October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

We are beginning to calculate detector responses to LCLS beam Direct imager exposed to full 8 ke. V FEL + Spontaneous through solid attenuator October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

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

Schedule emphasizes early completion of commissioning diagnostics October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

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 October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

Activities after CR Detailed Design of FEE in preparation for construction in FY 06 Mech. & Vac. through Near Hall Slit Direct Imager R&D & Prototype Gas attenuator Total Energy Spectrometer Indirect Imager October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov

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 FY 06 October 12, 2004 XTOD Overview UCRL-PRES-XXXXX Richard M. Bionta bionta 1@llnl. gov