X Ray Transport Optics and Diagnostics Overview LCLS

  • Slides: 25
Download presentation
X Ray Transport, Optics, and Diagnostics, Overview LCLS Week January 25 -27, 2005 This

X Ray Transport, Optics, and Diagnostics, Overview LCLS Week January 25 -27, 2005 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. January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Outline Overall Scope Technical Highlights Commissioning FY 05 Plans Conclusions January 25, 2005 XTOD

Outline Overall Scope Technical Highlights Commissioning FY 05 Plans Conclusions January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

1. 5 Scope: Front End Enclosure/ Near Experimental Hall NEH PPS Muon shield Front

1. 5 Scope: Front End Enclosure/ Near Experimental Hall NEH PPS Muon shield Front End Enclosure Slit A PPS Flipper Mirror PPS Comissioning: Spectrometers, Total Energy Solid Attenuator NFOV Direct Imager Indirect Imager Photon Beam Slit B WFOV Direct Imager Gas Attenuator Fast close valve Electron Beam January 25, 2005 XTOD Overview Muon shield Other: Direct Imager Fixed masks Electron Dump UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

FEH Pulse Split and Delay 1. 5 Scope: NEH, Tunnel, FEH X-Ray Beam Transport

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 January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Major XTOD Instrumentation WBS Title Need Status 1. 5. 2 Controls Some C Pre-Concept

Major XTOD Instrumentation WBS Title Need Status 1. 5. 2 Controls Some C Pre-Concept Specify 1. 5. 3 Mechanical & Vacuum Some C Concept FEE Prelim Eng 1. 5. 4. 2. 2 Fixed mask F Spec wait 1. 5. 4. 2. 3 Slit A F Concept 1. 5. 4. 2. 4 Slit B F Concept 1. 5. 4. 2. 5 Gas attenuator C Concept 1. 5. 4. 2. 8 Solid attenuator C Concept 1. 5. 4. 4. 2 Far Hall monochromater U Schedule hold 1. 5. 4. 4. 3 Far Hall pulse split and delay U Concept 1. 5. 5. 2 Modeling and simulation Some C In progress Beam Sim Instrument Sim 1. 5. 5. 3. 1 Direct Imager C Detailed Sims Proto & Sim Detailed Eng Proto & Sim 1. 5. 5. 3. 2 Indirect Imager C Concept 1. 5. 5. 4. 2 Total energy measurement C Concept 1. 5. 5. 4. 4 Spectrometer(s) C Specification wait January 25, 2005 XTOD Overview UCRL-PRES-209366 FY 04 Work FY 05 Plans Prelim Eng Concept dsn Prelim Eng, Proto & Sim Prototype Simulation Concept dsn Proto & Simulation Richard M. Bionta bionta 1@llnl. gov

Gas and Solids Attenuator Conceptual Design Solid Attenuator Gas Attenuator Autocad Use Gas Use

Gas and Solids Attenuator Conceptual Design Solid Attenuator Gas Attenuator Autocad Use Gas Use Solids * For a transmission of 10 -4 January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

LCLS beam footprint has been simulated in NEH H 1 and along FEE Expected

LCLS beam footprint has been simulated in NEH H 1 and along FEE 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 January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Spontaneous spot size variation with Linac Te Te = 4. 5 Ge. V 1.

Spontaneous spot size variation with Linac Te Te = 4. 5 Ge. V 1. 85 m. J Te = 14. 5 Ge. V 18. 2 m. J 2” 4” January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Spontaneous spectral mix simulated Near-Field calculation 88 m from End-of-Undulator, Sven Reiche , UCLA

Spontaneous spectral mix simulated Near-Field calculation 88 m from End-of-Undulator, Sven Reiche , UCLA 20 mm Far-Field calculation 400 m from Center-of-Undulator, Roman Tatchyn, SSRL 0 < E < 10 ke. V January 25, 2005 XTOD Overview 7. 6 < E < 9. 0 ke. V 10 < E < 20 ke. V UCRL-PRES-209366 20 < E < 27 ke. V Richard M. Bionta bionta 1@llnl. gov

We have created models to predict instrument response CCD Response, photoelectrons/pixel Direct Imager Solid

We have created models to predict instrument response CCD Response, photoelectrons/pixel Direct Imager Solid Attenuator FEL + Spontaneous Direct imager exposed to full 8 ke. V FEL + Spontaneous through solid attenuator in NEH h 1 January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Monte Carlo generates and tracks spontaneous and FEL photons No pipe, 4. 5 Ge.

Monte Carlo generates and tracks spontaneous and FEL photons No pipe, 4. 5 Ge. V Undulator Vac. Pipe Tilted pipe, 14. 5 Ge. V With pipe, 4. 5 Ge. V January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov Detector plane Reflections in undulator vacuum chamber

Monte Carlo used for design of Single Shot 30 -70 ke. V Spectrometer 25

Monte Carlo used for design of Single Shot 30 -70 ke. V Spectrometer 25 mm Sm filter E 1 q 1 Sm Ka 40. 1 ke. V E 2 Sm Kb 45. 4 ke. V q 2 W/Si. C bilayers d = 2 nm q. B=0. 45 deg Reflectivity @40 ke. V > 90% LCLS Monte. Carlo Simulation No filter January 25, 2005 XTOD Overview Straight-thru bkg UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

TTF Damage experiment set to test models at 40 e. V Sample cassette January

TTF Damage experiment set to test models at 40 e. V Sample cassette January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Diagnostics for Commissioning Spectrometer(s) Direct Imager NEH H 1 PPS FEH PPS Space Slit

Diagnostics for Commissioning Spectrometer(s) Direct Imager NEH H 1 PPS FEH PPS Space Slit A Gas Attenuator Solid Attenuator Muon Shield Slit B Muon Shield 112 m 83 m Front End Enclosure January 25, 2005 XTOD Overview UCRL-PRES-209366 Indirect Imager Total Energy Calorimeter Near Hall Hutch 1 Richard M. Bionta bionta 1@llnl. gov

Commissioning instrumentation is redundant and overlapping Instrument Purpose Adjustment Calibration Physics Direct Imager SP,

Commissioning instrumentation is redundant and overlapping Instrument Purpose Adjustment Calibration Physics Direct Imager SP, FEL ND filter Scintillator Indirect Imager FEL, crude spectra Mirror Angle Mirror reflection Total Energy FEL Spectrometers FEL, Sp Slits Remove Spontaneous Slit width Gas Attenuator Linearity Pressure, Gas Type Solid Attenuator Linearity Thickness January 25, 2005 XTOD Overview Energy to Heat UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

How faint can FEL be? (X-Ray resolution 300 x 100 mm) 14. 5 Ge.

How faint can FEL be? (X-Ray resolution 300 x 100 mm) 14. 5 Ge. V 1% FEL + Spontaneous directly into 25 mm LSO 0. 01% FEL + Spontaneous into 25 mm LSO January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

WFOVDI added to FEE to mitigate risk of small aperture in NEH Apertures here

WFOVDI added to FEE to mitigate risk of small aperture in NEH Apertures here and upstream widened to allow 10 cm beam at downstream end of FEE Slit A Gas Attenuator Solid Attenuator Add WFOV Direct Imager Muon Shield 112 m Front End Enclosure XTOD Overview Spectrometer(s) NEH H 1 PPS Slit B 10 cm beam here January 25, 2005 Change to NFOV Direct Imager FEH PPS Muon Shield 83 m This apertures remains at 2 cm UCRL-PRES-209366 Indirect Imager Total Energy Calorimeter Near Hall Hutch 1 Richard M. Bionta bionta 1@llnl. gov

FY 05 Personnel mostly identified WBS Item Person Org Status 1. 05. 01 Mgt

FY 05 Personnel mostly identified WBS Item Person Org Status 1. 05. 01 Mgt & Safety Bionta Mc. Mahon Beale P ME ES&H TEAM 3 H F H 1. 05. 04. 02 Total Energy Friedrich RDC Miller Li P P ME ME H F F F 1. 05. 04 Spectrometer EUVL P 1. 05. 04. 02. 06 TTF Damage Experiment - R&D $ London Hau-Riege Ryutov AX P P H H H 1. 05. 02 Beam Simulations - R&D $ Ott Fong C C H F 1. 05. 03. 01 Direct Imagers Mc. Kernan Ables Levesque+ Chen ME EE P EE H H NF NF 1. 05. 04. 02 Gas Atten Shen+ Baldis Ryutov ME UCD P NF H H 1. 05. 03. 02 Mech/Vac Design Dobie ME F 1. 05. 02 Slow Controls Lewis C NF 1. 05. 03. 02 Indirect Imagers DI Team Bajt P F January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Issues: Improved Layout Mirror set Gas Attenuator Solid Attenuator Muon Shield 83 m Muon

Issues: Improved Layout Mirror set Gas Attenuator Solid Attenuator Muon Shield 83 m Muon Shield 112 m What is the layout for the XTOD instrumentation? January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

XTOD Breakout sessions Wed 9: 00 New Layout Thursday 9: 00 Diagnostics January 25,

XTOD Breakout sessions Wed 9: 00 New Layout Thursday 9: 00 Diagnostics January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Summary XTOD transports x-ray beam to users and provides optics and diagnostics for LCLS

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 New layout, commissioning strategy, and risk analysis must be carried out on new layout proposal XTOD is ready for serious R&D and Engineering effort to support procurement and fabrication in FY 06 January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

XTOD and XES Summary LCLS Week January 25 -27, 2005 This work was performed

XTOD and XES Summary LCLS Week January 25 -27, 2005 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. January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Summary of breakouts FEE Layout Discussion, including Low-Pass Mirrors will fit in FEE Concept

Summary of breakouts FEE Layout Discussion, including Low-Pass Mirrors will fit in FEE Concept of “white beam optics room” approved Strawman layout to be circulated and vetted by photon group, then passed to Radiation Physics for analysis January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Summary of breakouts, cont. Diagnostics Coverage Discussion FY 05 WBS Task coverage discussed Spectrometers

Summary of breakouts, cont. Diagnostics Coverage Discussion FY 05 WBS Task coverage discussed Spectrometers for parallel beams workshop to discuss concepts for x-ray spectrometer ICFA workshop on FEL commissioning April 05 X-ray Spectrometers Determination of undulator k from x-rays X-ray beam monitor during experiments X-ray pulse length measurement January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov

Issues New layout, commissioning strategy, risk analysis, and P 3, must be developed for

Issues New layout, commissioning strategy, risk analysis, and P 3, must be developed for the new layout proposal Need to begin FY 05 work ASAP Need Alignment points that everybody must be forced to include in layout drawings Need to document apertures January 25, 2005 XTOD Overview UCRL-PRES-209366 Richard M. Bionta bionta 1@llnl. gov