Opening Comments and Charge 19 January 2004 [email protected] Linac Coherent Light Source...

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LCLS Undulator Diagnostics Workshop LCLS Undulator Diagnostics Workshop John N. Galayda, SLAC John N. Galayda, SLAC Opening Comments and Charge 19 January 2004 Opening Comments and Charge 19 January 2004 1 [email protected] Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear Accelerator Center LCLS Undulator Diagnostics and Comissioning Workshop John N. Galayda, Stanford Linear Accelerator Center 19 January 2004 Challenges of Commissioning the FEL Challenges of Commissioning the FEL Alignment Alignment Undulator K Undulator K Undulator Damage Undulator Damage Undulator Diagnostics Undulator Diagnostics Commissioning Commissioning Operation Operation Charge Charge
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Transcript of Opening Comments and Charge 19 January 2004 [email protected] Linac Coherent Light Source...

Page 1: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20041

[email protected]

Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

LCLS Undulator Diagnostics and Comissioning Workshop

John N. Galayda, Stanford Linear Accelerator Center19 January 2004

LCLS Undulator Diagnostics and Comissioning Workshop

John N. Galayda, Stanford Linear Accelerator Center19 January 2004

Challenges of Commissioning the FELChallenges of Commissioning the FELAlignmentAlignment

Undulator KUndulator K

Undulator DamageUndulator Damage

Undulator DiagnosticsUndulator DiagnosticsCommissioningCommissioning

OperationOperation

ChargeCharge

Challenges of Commissioning the FELChallenges of Commissioning the FELAlignmentAlignment

Undulator KUndulator K

Undulator DamageUndulator Damage

Undulator DiagnosticsUndulator DiagnosticsCommissioningCommissioning

OperationOperation

ChargeCharge

Page 2: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20042

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

The World’s First Hard X-ray Laser The World’s First Hard X-ray Laser IntroductionIntroduction The World’s First Hard X-ray Laser The World’s First Hard X-ray Laser IntroductionIntroduction

Page 3: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20043

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Near Hall

Far Hall

FEL Center

Page 4: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20044

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Conventional ConstructionConventional Construction

TransportUndulatorNear HallTunnelFar Hall3 Beams/mirror

FEL Center Lab/OfficeFEL Center Lab/Office

ExpansionExpansion

Room forRoom forSpontaneous source or soft XRFEL in RSYSpontaneous source or soft XRFEL in RSYAdditional undulator in LCLS tunnelAdditional undulator in LCLS tunnel8 or more additional undulator lines8 or more additional undulator lines

Page 5: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20045

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Conventional ConstructionConventional Construction

TransportTransport

UndulatorUndulator

Near HallNear Hall

TunnelTunnel

Far HallFar Hall

3 Beams/mirror3 Beams/mirror

FEL Center Lab/OfficeFEL Center Lab/Office

What are cost implications of moving beam dump and near hall backward, placingthe Near Hall ground floor underneath the FEL Center?

What are the cost implications of moving the Far Hall further east?

How do the dimensions of the Far Hall affect cost?

50m >288m ?

Page 6: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20046

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Estimated Cost, ScheduleEstimated Cost, Schedule

$220M-$260M$220M-$260M Total Estimated Cost Total Estimated Cost rangerange

$$265M-$315M265M-$315M Total Project Cost range Total Project Cost range

Schedule:Schedule:FY2003FY2003 Authorization to begin engineering design Authorization to begin engineering design

Emphasis on injector and undulatorEmphasis on injector and undulator

FY2005 FY2005 Long-lead purchases for injector, undulatorLong-lead purchases for injector, undulator

FY2006 Construction beginsFY2006 Construction begins

January 2007 January 2007 Injector tests beginInjector tests begin

October 2007October 2007 FEL tests beginFEL tests begin

September 2008 September 2008 Construction completeConstruction complete

$220M-$260M$220M-$260M Total Estimated Cost Total Estimated Cost rangerange

$$265M-$315M265M-$315M Total Project Cost range Total Project Cost range

Schedule:Schedule:FY2003FY2003 Authorization to begin engineering design Authorization to begin engineering design

Emphasis on injector and undulatorEmphasis on injector and undulator

FY2005 FY2005 Long-lead purchases for injector, undulatorLong-lead purchases for injector, undulator

FY2006 Construction beginsFY2006 Construction begins

January 2007 January 2007 Injector tests beginInjector tests begin

October 2007October 2007 FEL tests beginFEL tests begin

September 2008 September 2008 Construction completeConstruction complete

Readiness

Page 7: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20047

[email protected]

Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Challenges for Diagnostics in the Undulator ChannelChallenges for Diagnostics in the Undulator Channel

Tolerances on Trajectory are Tight for SASE at 1.5ÅTolerances on Trajectory are Tight for SASE at 1.5ÅBeam-based alignment, RFBPMs must deliver a good Beam-based alignment, RFBPMs must deliver a good trajectorytrajectory

Tolerance on K of an undulator is around 1.5 x 10Tolerance on K of an undulator is around 1.5 x 10-4-4

Equivalent to 50 micron vertical misplacementEquivalent to 50 micron vertical misplacement

This displacement does little to the electron opticsThis displacement does little to the electron optics

This displacement does little to the spontaneous spectrum This displacement does little to the spontaneous spectrum of 1 und.of 1 und.

Piezo end tuners provide adjustment equivalent to K~ 4x10Piezo end tuners provide adjustment equivalent to K~ 4x10--

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Radiation Damage to Undulators is a ConcernRadiation Damage to Undulators is a ConcernInterlocks will be implemented but tolerable losses are lowInterlocks will be implemented but tolerable losses are low

Can the diagnostics identify a damaged undulator?Can the diagnostics identify a damaged undulator?

Tolerances on Trajectory are Tight for SASE at 1.5ÅTolerances on Trajectory are Tight for SASE at 1.5ÅBeam-based alignment, RFBPMs must deliver a good Beam-based alignment, RFBPMs must deliver a good trajectorytrajectory

Tolerance on K of an undulator is around 1.5 x 10Tolerance on K of an undulator is around 1.5 x 10-4-4

Equivalent to 50 micron vertical misplacementEquivalent to 50 micron vertical misplacement

This displacement does little to the electron opticsThis displacement does little to the electron optics

This displacement does little to the spontaneous spectrum This displacement does little to the spontaneous spectrum of 1 und.of 1 und.

Piezo end tuners provide adjustment equivalent to K~ 4x10Piezo end tuners provide adjustment equivalent to K~ 4x10--

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Radiation Damage to Undulators is a ConcernRadiation Damage to Undulators is a ConcernInterlocks will be implemented but tolerable losses are lowInterlocks will be implemented but tolerable losses are low

Can the diagnostics identify a damaged undulator?Can the diagnostics identify a damaged undulator?

Page 8: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20048

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Charge – Will the Undulator Diagnostics Serve Commissioning and Operations Needs for the LCLS?Will the Undulator Diagnostics Serve Commissioning and Operations Needs for the LCLS? Charge – Will the Undulator Diagnostics Serve Commissioning and Operations Needs for the LCLS?Will the Undulator Diagnostics Serve Commissioning and Operations Needs for the LCLS?

CommissioningCommissioningCan diagnostics be used to troubleshoot the new hardware?Can diagnostics be used to troubleshoot the new hardware?Can diagnostics be used to guide path to saturation?Can diagnostics be used to guide path to saturation?

OperationsOperationsWill the diagnostics permit simple and speedy troubleshooting?Will the diagnostics permit simple and speedy troubleshooting?Reliability/Availability goals of the LCLS will be those of a light Reliability/Availability goals of the LCLS will be those of a light source source

Light diagnostics are crucialLight diagnostics are crucialCan the diagnostics survive at high power?Can the diagnostics survive at high power?If not, are we placing too heavy a reliance on data taken with low If not, are we placing too heavy a reliance on data taken with low charge?charge?

What are the alternatives?What are the alternatives?Variable gap?Variable gap?Rollaway undulators?Rollaway undulators?

Do we have redundant diagnostics capability where appropriate?Do we have redundant diagnostics capability where appropriate?Diagnostics that check the diagnosticsDiagnostics that check the diagnostics

CommissioningCommissioningCan diagnostics be used to troubleshoot the new hardware?Can diagnostics be used to troubleshoot the new hardware?Can diagnostics be used to guide path to saturation?Can diagnostics be used to guide path to saturation?

OperationsOperationsWill the diagnostics permit simple and speedy troubleshooting?Will the diagnostics permit simple and speedy troubleshooting?Reliability/Availability goals of the LCLS will be those of a light Reliability/Availability goals of the LCLS will be those of a light source source

Light diagnostics are crucialLight diagnostics are crucialCan the diagnostics survive at high power?Can the diagnostics survive at high power?If not, are we placing too heavy a reliance on data taken with low If not, are we placing too heavy a reliance on data taken with low charge?charge?

What are the alternatives?What are the alternatives?Variable gap?Variable gap?Rollaway undulators?Rollaway undulators?

Do we have redundant diagnostics capability where appropriate?Do we have redundant diagnostics capability where appropriate?Diagnostics that check the diagnosticsDiagnostics that check the diagnostics

Page 9: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 20049

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Point of No ReturnPoint of No Return

Page 10: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 200410

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

End of Presentation

Page 11: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 200411

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

2002 2003 2004 2005 2006 FY2008 FY2009

Preliminary SchedulePreliminary Schedule

ConstructionConstruction OperatioOperationn

DesignDesignFY2001 FY2002 FY2003 FY2004 FY2005 FY2006 FY2007

CD-1

CD-2a

CD-2b

CD-3a

CD-3b

Critical Decision 0 – Mission Need June 13, 2001Critical Decision 1 – Preliminary Baseline Range October 16, 2002Start Project Engineering Design October 2002Critical Decision 2a – Long-Lead Procurement Budget June 2003Critical Decision 2b – Performance Baseline April 2004Critical Decision 3a – Start Long-Lead Procurements August 2004Fund Long-Lead Procurements October 2004Critical Decision 3b – Start Construction August 2005Fund Construction October 2005Construction Complete End of FY2008

CD-0Title IDesignComplete

Page 12: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 200412

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Final Focus Test Beam ExtensionFinal Focus Test Beam Extension

Hall AHall A

TunnelTunnel

Hall BHall B

DamageDamagePower densityPower density

WavelengthWavelength

ObliquityObliquity

Final Focus Test Beam ExtensionFinal Focus Test Beam Extension

Hall AHall A

TunnelTunnel

Hall BHall B

DamageDamagePower densityPower density

WavelengthWavelength

ObliquityObliquity

Simultaneous Delivery of Beam to 3 EndstationsSimultaneous Delivery of Beam to 3 Endstations

Page 13: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 200413

[email protected]

Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Key Considerations for Conventional Facilities DesignKey Considerations for Conventional Facilities Design

Shielding Enclosure, Vehicle Access in Research YardShielding Enclosure, Vehicle Access in Research Yard

Vibration StabilityVibration Stability

Location of Far Hall, Elevation at Far Hall SiteLocation of Far Hall, Elevation at Far Hall Site

Potential for Expansion, Additional UndulatorsPotential for Expansion, Additional Undulators

Shielding Enclosure, Vehicle Access in Research YardShielding Enclosure, Vehicle Access in Research Yard

Vibration StabilityVibration Stability

Location of Far Hall, Elevation at Far Hall SiteLocation of Far Hall, Elevation at Far Hall Site

Potential for Expansion, Additional UndulatorsPotential for Expansion, Additional Undulators

Page 14: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 200414

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

No Anticipated Change in Requirements for:No Anticipated Change in Requirements for:

Research YardResearch Yard

OverpassOverpass

Undulator Hall (exc. length)Undulator Hall (exc. length)

X-ray Tunnel (exc. length)X-ray Tunnel (exc. length)

Research YardResearch Yard

OverpassOverpass

Undulator Hall (exc. length)Undulator Hall (exc. length)

X-ray Tunnel (exc. length)X-ray Tunnel (exc. length)

Page 15: Opening Comments and Charge 19 January 2004 galayda@slac.stanford.edu Linac Coherent Light Source Stanford Synchrotron Radiation Laboratory Stanford Linear.

LCLS Undulator Diagnostics WorkshopLCLS Undulator Diagnostics Workshop John N. Galayda, SLACJohn N. Galayda, SLAC

Opening Comments and Charge 19 January 2004Opening Comments and Charge 19 January 200415

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Linac Coherent Light Source Stanford Synchrotron Radiation LaboratoryStanford Linear Accelerator Center

Linac CenterLine

Sector 20 Linacs

Straight AheadTune-Up Dump

Sector 21-1B

5 meters

Scale:

L0-1

L0-2

RF TransverseDeflector

EmittanceWire Scanners Energy Wire

Scanner & OTR

Matching Section

Quadrupole,typ.

RFGun

Cathode LoadLock

DL1 Bend

Linac Solenoid

Gun Solenoid

Gun-to-Linac

L0 Linacs

Linac Coherent Light Source

Project Description

SLAC Linac

Two Chicanes for bunch compression

FFTB TunnelUndulator Hall

Near Hall

Far Hall

FEL Center