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LUSI Diagnostics & Common Optics WBS 1.5. Yiping Feng – DCO Lead Scientist LUSI CD-2 Review August 19, 2008. Lead Engineer: Eliazar Ortiz Mechanical Engineer: Marc Campell Mechanical Engineer: Nadine Kurita Design Engineer: Rick Jackson Designer: Don Arnett Designer: Ben Bigornia. - PowerPoint PPT Presentation
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Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 1
LUSI LUSI Diagnostics & Common OpticsDiagnostics & Common Optics
WBS 1.5 WBS 1.5
Yiping Feng – DCO Lead ScientistLUSI CD-2 ReviewAugust 19, 2008
Lead Engineer: Eliazar Ortiz
Mechanical Engineer: Marc Campell
Mechanical Engineer: Nadine Kurita
Design Engineer: Rick Jackson
Designer: Don Arnett
Designer: Ben Bigornia
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 2
Outline
Diagnostics & common optics (DCO) overviewDCO scopeComponents locationsComponents physics requirementsComponents descriptionsDeliverablesScheduleCostsMajor risks6-month look-aheadSummary
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 3
Overview
Common needs recognized for all LUSI instruments inDiagnostics for measuring X-ray FEL properties
Transverse beam profile Incident beam intensityTransverse beam positionsWave field at focus
Optical components for performing X-ray FEL manipulationsBeam size definition and clean-upAttenuation Pulse pattern selection and/or repetition rate reductionIsolation of fundamental from high harmonicsFocusing Monochromatization
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 4
Overview (cont.)
Common components identified among all LUSI instruments & categorized, based on functionalities, into
diagnostics suitecommon optics suite
To facilitate common design & implementationA single WBS element created – WBS 1.5
Captured all XPP, CXI, and XCS common components
The DCO integrated team put in placeDCO scientific/technical teamDCO engineering team
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 5
DCO Science Team
Responsible for developing specifications and device/component concepts for DCO
DCO scientific/technical teamYiping Feng, DCO lead scientistInstrument liaisons & DCO scientists
David Fritz, XPP instr., attenuator, harmonic rejection mirrorsMarc Messerschmidt, XPP instr.Sébastien Boutet, CXI instr., slits system, pulse pickerAymeric Robert, XCS instr., focusing lens, offset monochromator
Niels van Bakel, X-ray detectors supportGunther Haller/Dieter Freytag, EE support
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 6
Overview (cont.)
Physics requirement documents released by DCO teamDiagnostics
sp39100004-1_XRPopInProfMon-PRD sp39100009-1_XRPopInIntensity-PRD sp39100008-1_XRIntensity-Position-PRD sp39100007-0_XRWavefrontMon-PRD*
Common optics sp39100011-1_BeLens-PRD sp39100014-1_Slits-PRD sp39100010-1_Atten-PRD sp39100023-1_Pulse_Picker-PRD sp39100034-1_HarmRejMirror-PRD sp39100016-0_OffsetMono (in work)*
* In initial version-0
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 7
DCO Scope
Work Breakdown Structure
Scope/CD-2 Includes:
Physics support & engineering integration (WBS. 1.5.1)
Diagnostics (WBS 1.5.2)
Pop-in Profile/Wavefront Monitor (WBS 1.5.2.1)
Pop-in Intensity Monitor (WBS 1.5.2.2)
Intensity-Position Monitor (WBS 1.5.2.3)
Common Optics (WBS 1.5.3)
Offset Monochromator (WBS 1.5.3.1)
X-ray Focusing Lenses (WBS 1.5.3.2)
Slits System (WBS 1.5.3.3)
Attenuators (WBS 1.5.3.4)
Pulse Picker (WBS 1.5.3.5)
Harmonic Rejection Mirrors (WBS 1.5.3.6)
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 8
Components Locations
SXR
CXIEndstation
Near Experimental Hall
Far Experimental Hall
X-ray Transport
Tunnel
XCSEndstation
XPPEndstation
AMO
Components locationsDistributed throughout the XPP, CXI, and XCS instruments, including X-ray transport tunnel
HEDS
LCLS X-ray FEL
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 9
Components Locations (cont.)
An example in XPP15 diagnostics/common optics components embedded in XPP
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 10
Device/Component Counts
Total device/component counts
Diagnostics/Optics XPP CXI XCS Total
Pop-in Profiler/Wavefront Monitor
3 4 5 12
1 1
Pop-in Intensity Monitor 2 2 5 9
Intensity-Position Monitor 3 3 5 11
Offset Monochromator 1 1
X-Ray Focusing Lenses 1 1 2
Slits System 3 4 6 13
Attenuators/Filters 1 1 1 3
Pulse Picker 1 1 1 3
Harmonic Rejection Mirrors 1 1 2
Total 15 16 26 57
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 11
DCO Physics Requirements
GoalsBuild diagnostics and common optics to help XPP, CXI, and XCS instruments achieve their full scientific potentials
Common requirements stemmed from characteristics of LCLS X-ray FEL
Ultra short @ 100 fs, and repetition rate of 120 HzHigh peak power ~ 10 GWFully coherent in transverse directions ~ TEM00
Intrinsic intensity, temporal, spatial, timing fluctuations on per-pulse basis, i.e.,
LCLS Expected Fluctuations
Pulse intensity fluctuations~ 30 %(in contrast to synchrotron where fluctuation is Poisson limited)
Position & pointing jitter (x, y, , )
~ 10 % of beam diameter~ 10 % of beam divergence
Source point jitter (z)~ 5 m (leads to variations in apparent source size, or focal point location if focused)
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 12
DCO Physics Requirements (cont.)
Unique challenges identified for LUSI DCOCapable of sustaining the instantaneous LCLS X-ray FEL peak power
Exercising deliberate material selectionThermal calculations including melting threshold and onset of thermal fatigue
Capable of coherent beam manipulationMinimizing large angle diffractions to the extent possible
i.e., utilizing cylindrical blades for slits
Minimizing random wavefront distortion to the extent possibleReducing surface roughness and bulk non-uniformities
Capable of ultra-fast signal detectionExtracting signals in ~ ns to avoid large background
i.e., charge-sensitive detection in intensity measurements
Capable of per-pulse measurement if requiredEach pulse is a new experiment
Averaging NOT an option, requiring high S/N ratio from single pulsei.e., high-precision intensity measurements to 0.1% based on single pulse
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 13
DCO Physics Requirements (cont.)
Unique challenges for LUSI DCO (cont.)Capable of maintaining ultra-high mechanical stability in case of large optics-to-sample distance, i.e., XCS offset monochromator
To 10% of beam size at 50 m 0.25 rad pointing stability
Linac-to-Undulator (227m)
Undulator Hall (175m)
Near Expt. Hall X-ray Transport
(230m)
Far Expt. Hall
Source to Sample distance @ 1.5 ÅCXI - 440 m
XCS - 419 m
XPP - 193 m54 mRayleigh Length
60 m 220 m 490 m1.1 rad
Mono location
200 m
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 14
Component Descriptions
Diagnostics suitePop-in profile monitor (WBS 1.5.2.1)
Requirements Destructive; Retractable;Variable FOV and resolution
At 100 m resolution, 24x24 mm2 FOV;At 8 m resolution, 2x2 mm2 FOV;
Capable of per-pulse op. @ 120 Hz if requiredAttenuation used if necessary
Pop-in intensity monitor(WBS 1.5.2.2)
RequirementsDestructive; Retractable;Relative accuracy < 1%;Working dynamic range 100;Sensitive area 20x20 mm2
Capable of per-pulse op. @ 120 HzAttenuation used if necessary
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 15
Component Descriptions (cont.)
Diagnostics suite (cont.)Intensity-position monitor(WBS 1.5.2.3)
RequirementsIn-situ, but retractable if desiredHighly transmissive (< 5% loss);Relative accuracy < 0.1%; Working dynamic range 1000;Position accuracy in xy < 10 m;Per-pulse op. at 120 Hz;
Wavefront monitor(WBS 1.5.2.1)
Requirements In-situ, but retractable if desiredVariable FOV and resolutionPer-pulse op. @ 120 HzAttenuation used if necessaryComputational algorithms needed for wavefront reconstruction
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 16
Component Descriptions (cont.)
Common optics suiteX-ray focusing lenses(WBS 1.5.3.2)
Requirements Produce variable focused spot size
For XPP2-10 m in focus40-60 m out-of-focus
Minimize wavefront distortionWithstand FEL full flux
Slits system(WBS 1.5.3.3)
Requirements0 – 10 mm gap setting10-9 in trans. btw 2-8.265 keV10-8 in trans. at 25 keVGap precisions in xy
0.5 m for precise slits
5 m for coarse slits
Minimize diffraction/wavefront distortionWithstand FEL full flux
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 17
Pulse picker(WBS 1.5.3.5)
Requirements< 3 ms switching timeReduce rep rate < 10 Hz operation*
Not preferred for > 10 Hz continuous operation, FEL rep rate reduction will be used
Withstand full LCLS FEL fluxRequiring 100 m Si3N4 to protect the steel blade
Component Descriptions (cont.)
Common X-ray optics (cont.)Attenuators(WBS 1.5.3.4)
Requirements Minimize wavefront distortionWithstand full FEL flux108 attenuation at 8.3 keV*104 attenuation at 24.9 keVAt least 3 steps per decade
*DCO key performance parameters
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 18
Offset monochromator(WBS 1.5.3.1)
RequirementsLarge 600 mm offset6-25 keV energy range
Continuously tunable
10% positional stability (of beam size)Double-crystal geometryAttenuation used if necessary
Component Descriptions (cont.)
Common optics (cont.)Harmonic rejection mirrors(WBS 1.5.3.6)
Requirements Energy range btw 6 - 8.265 keV104 contrast ratio between fundamental and the 3rd harmonic, 106 overall80% overall throughput for the fundamentalMinimize wavefront distortionWithstand full FEL flux
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 19
DCO Deliverables
CD-4A CD-4B CD-4C
XPP
Pop-In Profile MonitorPop-In Intensity MonitorIntensity-Position MonitorSlits SystemPulse Picker
AttenuatorsHarmonic Rejection MirrorsX-Ray Focusing Lenses
CXI
Pop-In Profile MonitorPop-In Intensity MonitorIntensity-Position MonitorWavefront MonitorSlits SystemPulse PickerAttenuators
XCS
Pop-In Profile MonitorPop-In Intensity MonitorIntensity-Position Monitor AttenuatorsHarmonic Rejection MirrorsX-Ray Focusing LensesSlits SystemPulse PickerOffset Monochromator
Phased deliverables
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 20
DCO Schedule
WBS 1.5 schedule developed to ensure that instruments’ milestones are met on time
Preliminary design reviewsPop-In Profile Monitor Q4 FY08Pop-In Intensity Monitor Q4 FY08Pulse Picker Q4 FY08Slits System Q1 FY09Intensity-Position Monitor Q1 FY09X-ray Focusing Lens Q2 FY09Attenuators Q3 FY09Harmonic Rejection Mirrors Q4 FY09Wavefront Monitor Q1 FY10Offset Monochromator Q2 FY10
Final design reviewsPulse Picker Q1 FY09Slits System Q1 FY09Intensity-Position Monitor Q2 FY09Pop-In Profile Monitor Q2 FY09Pop-In Intensity Monitor Q3 FY09X-ray Focusing Lens Q3 FY09Attenuators Q4 FY09Harmonic Rejection Mirrors Q1 FY10Wavefront Monitor Q2 FY10
Installation completeCD-4A Installation complete Q1 FY11CD-4B Installation complete Q3 FY11CD-4C Installation complete Q3 FY12
FY08 FY09 FY10 FY11 FY12
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 21
DCO Cost Baseline
Labor & non-labor (M&S, etc.)
Labor
Non-Labor
Resource Type Value
Labor $3,093,109
Non-Labor $3,290,886
Total BAC $6,383,995
WBS 1.5
WBS 1.5 FY07 FY08 FY09 FY10 FY11 FY12 Cumulative
1.5.01 Diagnostics & Common Optics System Integ & Design
-$ 425,202$ 321,933$ 308,333$ 211,124$ 66,793$ 1,333,385$
1.5.02 Diagnostics -$ 128,602$ 343,149$ 635,534$ 472,659$ -$ 1,579,943$
1.5.03 Common Optics -$ 117,316$ 929,376$ 1,421,303$ 1,000,096$ 2,576$ 3,470,667$
WBS Totals: -$ 671,120$ 1,594,457$ 2,365,170$ 1,683,879$ 69,369$ 6,383,995$
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 22
DCO Cost Baseline (cont.)
Level-3/4 cost breakdown1.5.02 - Diagnostics1.5.03 – Common optics
Control Account FY2007 FY2008 FY2009 FY2010 FY2011 FY2012 Cumulative1.5.01 Diagnostics & Common Optics System Integration & Design $0 $425,202 $321,933 $308,333 $211,124 $66,793 $1,333,3851.5.02.01 Pop-in Profile Monitor $0 $41,893 $156,295 $219,317 $148,664 $0 $566,1691.5.02.02 Pop-In Intensity Monitor $0 $42,092 $64,342 $108,047 $111,602 $0 $326,0831.5.02.03 Intensity-Position Monitor $0 $44,616 $122,512 $308,170 $212,393 $0 $687,6921.5.03.01 Monochromator $0 $0 $387,623 $845,895 $0 $0 $1,233,5181.5.03.02 X-ray Focusing Lenses $0 $14,385 $148,711 $13,148 $183,500 $1,520 $361,2631.5.03.03 Slit System $0 $66,154 $92,598 $251,284 $250,285 $0 $660,3211.5.03.04 Attenuators / Filters $0 $4,427 $99,061 $75,773 $150,270 $0 $329,5311.5.03.05 Pulse Picker $0 $32,350 $138,987 $164,443 $139,546 $0 $475,3271.5.03.06 Harmonic Rejection Mirrors $0 $0 $62,396 $70,761 $276,494 $1,056 $410,706
Control Account Totals $0 $671,120 $1,594,457 $2,365,170 $1,683,879 $69,369 $6,383,995
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 23
DCO Major Risks
Offset monochromatorMechanical stability not met
Required to maintain position stability to 10% of beam size Mitigation
Ensure requirements are clearly stated and agreed prior to award and fabrication Implement a stringent vendor selection process Implement regular visits to vendor Implement frequent and measurable status reports Maintain constant communication with the vendor prior to and during design and fabrication
Linac-to-Undulator (227m)
Undulator Hall (175m)
Near Expt. Hall X-ray Transport
(230m)
Far Expt. Hall
Source to Sample distance @ 1.5 ÅCXI - 440 m
XCS - 419 m
XPP - 193 m54 mRayleigh Length
60 m 220 m 490 m1.1 rad
Mono location
200 m
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 24
Major milestonesPreliminary design reviews
Q4FY08 – PDR Pop-in profile monitorQ4FY08 – PDR Pop-in intensity monitor Q4FY08 – PDR Pulse pickerQ1FY09 – PDR Intensity-position monitorQ1FY09 – PDR Slits system
Final design reviews Q1FY09 – FDR Slits systemQ1FY09 – FDR Pulse picker
6-Month Look-ahead
Yiping Fengyfeng@slac.stanford.edu
LUSI DOE Review Aug. 19, 2008Diagnostics/Optics (WBS 1.5) p. 25
Summary
Diagnostics and common optics help support LUSI instruments to fulfill CD-0 mission in a wide variety of cutting edge research capabilities Diagnostic & optical components concepts are based on proven developments made at SPPS, FLASH, and SR sourcesSafety hazards have been identified in Hazard Analysis Report (HAR)Safety issues are considered at every step of design and fabrication process Scope of DCO components for XPP, CXI, and XCS instruments fully definedResource loaded schedule developed through end of projectPreliminary designs of key components are well advancedDCO and LUSI are ready for CD-2 approval
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