1. Electron Beam Systems ETC and Methodology
David Schultz
E-Beams Systems Manager
Electron Beam Systems
Definition of terms
Schedule Overview
Start-Up Test Plan
E-Beams Costs
Risk Analysis

2. E-Beams Systems layout
Sector 21
Sector 20
Laser lab
BC1 LX L1
Injector
Injector Commissioning complete

3. The electron gun in the Injector
Laser beam transport
Electron gun

4. E-Beams Systems layout
6 MeV
135 MeV
250 MeV
4.30 GeV
13.6 GeV
Linac-0
L =6 m
Linac-X
L =0.6 m rf
gun
Linac-1
L 9 m
Linac-2
L 330 m
Linac-3
L 550 m
Commissioned
Now Installing
...existing
linac X
undulator
L =130 m
BC2
L 22 m
BC1
L 6 m
LTU
L =275 m
Injector/BC1
L2/BC2/L3
SLAC linac tunnel
research yard

5. E-Beams Systems layout
Beam Transport Hall Transport the electron beam to the Undulator
Undulator Hall Underground tunnel housing the undulator.
Controls
Beamline and diagnostics control for e-beams systems.
SLAC Linac
LCLS uses the last 1/3 of the existing Linac.
Electron Beam Dump Underground facility for the beam dump.
Near and Far Halls – Areas for x-ray experiments

6. E-Beams Systems WBS structure
Injector WBS 1.02, 2.02
Jose Chan, Control Account Manager
Laser/Gun/L0/Spectrometer
– Installed and commissioned
Create electrons, accelerate, analyze beam quality
Laser Heater
Accelerator R&D activity

7. E-Beams Systems WBS structure
Linac WBS 1.03, 2.03
Jose Chan, CAM
L1/Lx/BC1 – Installed and commissioned
Accelerate the beam,
initial beam bunch compression
L2/BC2/L3
Full beam acceleration,
second compression of bunch
LTU
Transport electron beam from Linac to Undulator
Electron dump
Safely dispose of the electron beam

8. E-Beams Systems WBS structure
Undulator WBS 1.04, 2.04
Generate x-rays as the high power electron beam passes through.
Undulator Systems at ANL, Geoff Pile, CAM
Fabricate components and supports for the Undulator system
Undulator Integration at SLAC, Rodd Pope, CAM
Tune, fiducialize, assemble, and install the Undulator system

9. E-Beams Systems WBS structure
Accelerator Controls WBS , ,
, , ,
Hamid Shoaee, CAM
Controlling hardware, cable plant and software for Injector, Linac and Undulator Systems
Commissioning WBS , , ,
David Schultz, CAM
LOE manpower for LCLS personnel and maintenance groups during the electron beam commissioning process.

10. System Design Management
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.

11. E-Beams Systems Level 3 Milestones
L3 milestones sufficient and properly distributed to monitor performance.

12. E-Beams Systems Level 3 Milestones

13. LCLS Installation and Commissioning Time-Line
X-ray tunnel/FEH Install
LTU/Und/Dump
Install
FEH X-rays milestone
Flux milestone
CF Early Occupancy
CD-4
(7/30/10)
FEE/NEH Install S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M
2007
2008
PPS
2009
PPS
2010
LTU/Und Commissioning
Tunnel/FEH Commissioning
Linac/BC2 Commissioning
Linac/BC2 Install
FEE/NEH Commissioning

14. Start Up Test Planning 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’ sign­offs 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

15. E-Beams Systems Cost Estimation
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/procurement
Costs based on quotes and experience with prototypes at SLAC and ANL.
Engineering and Commissioning
Timetable for completion well understood.

16. 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.

17. 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.

18. Summary 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.