LUSI Diagnostics & Common Optics WBS 1.5

Yiping [email protected]

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



Outline

Diagnostics & common optics (DCO) overviewDCO scopeComponents locationsComponents physics requirementsComponents descriptionsDeliverablesScheduleCostsMajor risks6-month look-aheadSummary



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



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



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



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



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)



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



Components Locations (cont.)

An example in XPP15 diagnostics/common optics components embedded in XPP



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



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)



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



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



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



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




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



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


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



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


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



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



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



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$



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



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



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



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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LUSI Diagnostics & Common Optics WBS 1.5

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