Electron Beam Systems ETC and Methodology

1LCLS EIR, 10/9/07D. Schultz

Electron Beam SystemsETC and Methodology

Electron Beam Systems Definition of terms

Schedule Overview Start-Up Test PlanE-Beams CostsRisk Analysis

David Schultz

E-Beams Systems Manager


BC1

LXL1

Laser lab

Sector 20

Sector 21E-Beams Systems layout

Injector Injector Commissioning complete


The electron gun in the InjectorLaser beam

transport

Electron gun


SLAC linac tunnelSLAC linac tunnel research yardresearch yard

Linac-0L =6 m

Linac-1L 9 m

Linac-2L 330 m

Linac-3L 550 m

BC1L 6 m

BC2L 22 m

LTU L =275 m

undulatorL =130 m

6 MeV 135 MeV 250 MeV 4.30 GeV 13.6 GeV

Linac-XL =0.6 m

...existinglinac

rfgun

X

E-Beams Systems layout

L2/BC2/L3Injector/BC1

Comm

issio

ned

Now In

stal

ling


Beam Transport Hall Transport the electron beam to the Undulator

E-Beams Systems layout

SLAC Linac LCLS uses the last 1/3 of the existing Linac.

Controls Beamline and diagnostics control for e-beams systems.

Undulator Hall Underground tunnel housing the undulator.

Electron Beam Dump Underground facility for the beam dump.

Near and Far Halls – Areas for x-ray experiments


Injector WBS 1.02, 2.02Jose Chan, Control Account Manager

Laser/Gun/L0/Spectrometer

– Installed and commissioned

Create electrons, accelerate, analyze beam quality

E-Beams Systems WBS structure

Laser HeaterAccelerator R&D activity


Linac WBS 1.03, 2.03Jose Chan, CAML1/Lx/BC1 – Installed and commissioned

Accelerate the beam, initial beam bunch compression

L2/BC2/L3Full beam acceleration, second compression of bunch


LTUTransport electron beam from Linac to Undulator

Electron dumpSafely dispose of the electron beam


Undulator WBS 1.04, 2.04Generate x-rays as the high power electron beam passes through.

Undulator Systems at ANL, Geoff Pile, CAMFabricate components and supports for the Undulator system

Undulator Integration at SLAC, Rodd Pope, CAMTune, fiducialize, assemble, and install the Undulator system



Accelerator Controls WBS 1.02.02, 2.02.02,

1.03.02, 2.03.02, 1.04.02, 2.04.02

Hamid Shoaee, CAMControlling hardware, cable plant and software for Injector, Linac and Undulator Systems

Commissioning WBS 2.01.01, 2.02.17, 2.03.07, 2.04.06

David Schultz, CAMLOE manpower for LCLS personnel and maintenance groups during the electron beam commissioning process.



System engineering resource loaded schedule is controlled through P3.Design process:

Interface Control Documents specify which group has responsibility for each system.Physics Requirements Documents are written by the LCLS Physics group specifying subsystem needs.Engineering group holds Design Reviews, and writes Engineering Specification Documents to detail how the PRD is to be satisfied.

Physicists and Engineers sign-off on component assembly and testing prior to installation.

System Design Management


E-Beams Systems Level 3 Milestones

L3 milestones sufficient and properly distributed to monitor performance.


E-Beams Systems Level 3 Milestones


LCLS Installation and Commissioning Time-Line

SS OO NN DD JJ FF MM AA MM JJ JJ AA SS OO NN DD JJ FF MM AA MM JJ JJ

Linac/BC2 Install

Linac/BC2 Commissioni

ng

LTU/Und/Dump Install

20072007 20082008

CF Early Occupancy

LTU/Und Commissionin

g

Flux milestone

AA SS OO NN DD

20092009 20102010PPS

X-ray tunnel/FEH Install

CD-4(7/30/10)

PPS

FEE/NEH Commissioning

Tunnel/FEH Commissioning

JJ FF MM AA MM

FEE/NEH Install

FEH X-rays milestone


LCLS Safety Assessment Document is due 7/2008

LCLS Accelerator Readiness Review is needed 10/2008

Systems installed, checked out, signed off by responsible parties.

Safety officers’ sign offs on approvals and installations.

Safety specific systems (Personnel Protection) certified.

Maintenance groups have procedures and training in place.

Procedures in place for Operations, and Operators trained.

Beam Authorization Sheet prepared.

Detailed commissioning schedule and performance goals are produced by the LCLS Physics group.

Approval to begin commissioning given by the Director’s office

Start Up Test Planning


As installation is approaching, systems are well defined.Installation costs

Based on experience in 2006 Injector installation. Hardware install estimate done top-down and bottom-up.

Based on experience on undulator prototype at ANL.Cable plant install estimated using R.S. Means.

Fabrication/procurementCosts based on quotes and experience with prototypes at SLAC and ANL.

Engineering and CommissioningTimetable for completion well understood.

E-Beams Systems Cost Estimation


Risk Assessment

Design maturity and cost/schedule exposure are used in the contingency analysis for all DCE activities.Major risks are identified as Risk Registry entries, and assessed and maintained by the System Manager.The Senior Management team reviews the Registry monthly.

Summary of E-Beams Systems entries:Linac (2)

Risk: Linac diagnostics may need to be enhanced to have sufficient sensitivity for FEL commissioning.

Mitigation: The upcoming BC2 commissioning will determine if an upgrade is warranted.


Risk registry

Summary of entries (cont.):Undulator (3)

The assembly of the Undulator Girders is a pacing item for Undulator commissioning. Several components from ANL are close to being the limiting factor

Risk: Any rework or modification of parts at SLAC will delay girder assembly.

Mitigation: We have multiple weekly video meetings with ANL and quarterly Undulator collaboration meetings to ensure coordination.Integration engineers at ANL and at SLAC have been established to coordinate the receipt and assembly.


Electron Beams Systems are approaching final installation.Systems are well defined,

Based on Project documentation.Resource loaded schedule in P3.Costs have a solid basis.

The start up test plan is based on the successful turn-on of the LCLS Injector.Identified risks are being controlled.

Summary