1. LCLS Startup, Commissioning & Future Scenarios
Requirements, Project Deliverables
Readiness
Schedule
Budget
Post – CD-4 Developments of LCLS

2. CD-0, Goals for Scientific Mission
Self-Amplified Spontaneous Emission (SASE) Free Electron Laser
X-ray Photon Energy keV
Electron Beam Energy 4.4 – 14.1 GeV from SLAC Linac
Peak Power in SASE Bandwidth 8 GW
Peak Brightness 1 x 1033 photons/s (mm2 mrad2 0.1% BW)
Pulse Duration <230 femtoseconds
Pulse Repetition Rate 120 Hz

3. Critical Decisions and Commissioning
LCLS Critical Decision Status:
CD-0 Approve Mission Need – Complete (Jun01)
CD-1 Approve Preliminary Baseline Range – Complete (Oct02)
CD-2A Approve Long-Lead Procurement Budget – Complete (Jul04)
CD-2B Approve Performance Baseline – ESAAB April 8
CD-3A Approve Start of Long-Lead Procurements – Complete (Dec04)
CD-3B Approve Start of Construction – Scheduled (Nov05)
CD-4 Approve Start of Operations – Scheduled (Mar09)
Commissioning Milestone Dates:
Start of LCLS Construction Start– Mar06
Injector Laser Commissioning Start– Jun06
Injector/Main Linac E-Beam Commissioning Start– Apr07
Linac-to-Undulator Commissioning Start – Mar08
“First Light” (E-Beam through Undulator) Start – May08

4. Goals of Commissioning/Startup
Readiness
Safety features and systems complete
Safety systems/procedures documents complete
Personnel training complete
Orderly, staged handoff of operational responsibilities
Technical
Confirm that systems meet engineering specification
Achieve physics specification

5. Commissioning Goals to support CD-4
A1‐1 (Injector Commissioning Goals)
Repetition rate 10 Hz or greater
Nominal Charge/pulse 0.5 nC or greater
Nominal pulse length 3‐10 ps
Projected emittance 2.0 mm‐mrad or less
A1‐2 (Linac Commissioning Goals)
A1‐3 (Undulator Commissioning Goals)
Transport of electrons without loss to beam dump, 4.4‐14.1 GeV
Diagnostics and machine protection systems functional 1‐10 Hz
A1‐4 (Project Commissioning Goal for Project Completion (CD‐4))
Detect 106 photons flux /pulse
Detect x‐rays in Far Hall

6. Critical Decision 4 Deliverables (from Project Execution Plan)
Critical Decision 4: Approve Start of Operations Authority: Director, Office of Science
Project completion (CD-4) will be accomplished when the commissioning goals have been achieved. Prior to operations, a period of commissioning and performance testing for the LCLS will be completed as technical systems and facilities are installed. A Commissioning Plan will be prepared to define goals that ensure LCLS systems are integrated and functioning as designed. The commissioning goals are to produce a single-pulse x-ray spectral flux density of at least 106 photons/(mm2 ·0.1%BW) at 1.5 Ångstrom wavelength, measured in the NEH or just upstream in the Front End Enclosure; and to detect x-rays in the FEH to confirm the xray transport system to the endstations is functional. Achieving the commissioning goals will demonstrate that the LCLS facility was designed, fabricated, and installed satisfactorily; systems are functioning as designed; and that the facility is capable of functioning as an XFEL producing intense, coherent x-ray pulses.

7. DOE Accelerator Safety Order Requirements
1-Accelerator Safety Envelope – Basis for Safety Assessment
2-Safety Assessment Document
Hazards
Mitigations
3-Unreviewed Safety Issue
Operations halted
Restart requires DOE approval
4-Accelerator Readiness Reviews
5-Training and Qualification
6-Written Procedures
7-Internal Safety Review System

8. Where Have We Been: Analyze Hazards
Environmental Assessment
Preliminary Hazards Analysis
Preliminary Safety Assessment Document
Fire Hazard Analysis – draft received

9. Where Have We Been: Identify Controls
Radiation Shielding Design for New Enclosures
Work Smart Standards
Specific Standards

10. Level 2 Milestones Address Readiness Process
Draft Prelim Safety Assessment Doc (PSAD) Complete April 2004 (A)
DOE External Independent Review (EIR) Complete June 2004 (A)
Fire Hazard Analysis Approved May 2005
Delivery of Undulator 1st Articles to Magnet Meas.Fac. July 2006
Sector 20 Alcove Beneficial Occupancy July 2006
MMF Qualified & Ready to Measure Prod Undulators August 2006
Injector Laser Commissioning Review Complete September 2006
Research Yards Mods Beneficial Occupancy October 2006
Start Injector Commissioning (Drive Laser) November 2006
Preliminary Safety Assessment Document Approved January 2006
Injector Accelerator Readiness Review (ARR) Comp May 2007
Near Experimental Hall Beneficial Occupancy June 2007
Undulator Hall Beneficial Occupancy July 2007
Linac Facility Beneficial Occupancy July 2007
Start Injector Commissioning (UV Beam to Cathode) July 2007
Far Experimental Hall Beneficial Occupancy September 2007
Front End Enclosure Beneficial Occupancy October 2007
X-Ray Transport Beneficial Occupancy October 2007
Linac ARR (Li20-Li30) Complete January 2008
2-D Pixel Detector Production Start January 2008
Beam Transport Hall Beneficial Occupancy January 2008
Start Linac (Li20-Li30) Commissioning March 2008
Final Safety Analysis Document (FSAD) Approved March 2008
LCLS ARR Complete (BTH thru FEH) June 2008
Start Linac-to-Undulator (LTU) Commissioning June 2008
Start Undulator Commissioning (1st Light) August 2008
Start XTOD Commissioning August 2008
Start XES Commissioning August 2008
Central Lab Office Building Beneficial Occupancy November 2008
Note: (A) indicates actual milestone completion date.

11. Commissioning Milestones From 8/2004 Review
8/ Early Start
Start Injector Commissioning – 5/ /06
First Beam on linac axis / /07
Start of Undulator Commiss / /08
Possibility of earlier start for injector
It is ready to run at the start of the FY shutdown
Earlier undulator commissioning
revise beneficial occupancy dates
LCLS PRD-1.1-2, FEL Commissioning Plan
Undulator protection
Beam-based alignment
Measurement of basic performance parameters

12. Installation completion dates: Laser System June 30, 2006
Sector 20 Beneficial Occupancy:
2005 Linac Downtime: to
2006 Linac Downtime: to
2007 Linac Downtime: to
Installation completion dates:
Laser System June 30, 2006
Gun Region June 30, 2006
Accel Region Mar 31, 2006
Heater Region Feb 15, 2006
Wall Region Oct 31, 2005
Injection Region August
Spect Region August
Waveguide through wall and up penetration October 2005

13. LCLS FTE Estimates (Mar05)
LCLS resource estimate is derived from resource-loaded schedule.
PIXE profile under development
annualized

14. BES Support of SLAC operations
LCLS startup budget was planned as an increment of SLAC HEP operations, with phased turn-on of experiments
FY2006 President’s budget shows $30M for linac operation (PEP-II)
FY2008 last year of PEP-II operation
FY2009 SLAC linac support ~100% BES
BES review of SLAC operating budget in the coming year

15. Startup of Experiment Program
Soft X-ray Atomic Physics - Start at CD-4
PIXE provides 2 instruments in phase 1
Capable of supporting first experiments in 4 thrust areas
Two more instruments in phase 2
complete all PIXE work in 2012
High-energy density station seeking funds from alternate source, likely online well before 2012

16. Electric Power Q1-Q2 FY2009 LCLS Power budget $3.56M
Approx 15 kW for linac and facilities
LCLS Linac Hz
Enough for running over 3,000 hours in first half of FY2009

17. Looking Ahead – Undulators 2-6
Assumes tunneling can proceed without interrupting Operations

18. Commissioning planning well underway
Conclusions - Startup
SLAC, SSRL organization prepared to support high-quality LCLS operations
Commissioning planning well underway
Injector commissioning
Linac commissioning
FEL commissioning before 7/2008
Three instruments ready during commissioning

19. End of Presentation

20. LCLS L1 and L2 Milestones 7 L1 Milestones tracked by DOE-SC1
27 L2 Milestones tracked by DOE-SSO
132 L3 Milestones tracked by LCLS Project Office
L1-L2-L3 under change control
Add'l L4’s tracked by System Managers

21. Scenario for SLAC as a BES Lab

22. LCLS Summary Schedule – Mar05
Highlights
Schedule Float
213 days (10.5 mos.)
~23% cont wrt CD-4
Critical Path
Und B.O. - Und Inst to 1st Light
FY05 Shutdown
~1 month
FY06 shutdown
~ 4 months
FFTB Shutdown
Jul06
LCLS may request advancing this date

23. CD-4 Approval of Start of Operations
PR1‐1 The Project Execution Plan states the summary requirement for
achievement of Critical Decision 4, Start of Operations. “The top‐level commissioning goal is to generate x‐rays in the LCLS
undulator and detect them in the Far Hall.” The Far Hall is one of two locations where x‐ray experiments may be carried out with the LCLS beam.
This milestone is to be achieved by 30 September 2008.
The Project construction schedule is constrained by this requirement.
Achievement of CD‐4 entails;
achievement of commissioning goals for the injector
achievement of commissioning goals for the linac
achievement of commissioning goals for the undulator systems
beneficial occupancy of the Near Experiment Hall
beneficial occupancy of the Far Experiment Hall
completion of beam path from the undulator to the Near
Experiment Hall
completion of the beam path from the Near Experiment Hall to the
Far Experiment Hall
operational personnel protection systems for all electron beam
enclosures
operational personnel protection systems for the hutches in the Near
operational personnel protection system for the center hutch in the
a functional x‐ray detector in the center hutch of the Far Experiment
Hall
achievement of commissioning goals and requirements for all level 2
WBS elements
successful transport of an x‐ray beam from the undulator hall to the
detection of x‐ray photons in the Far Experiment Hall

24. Functional Requirements
FR1‐1 Operation of the LCLS linac for the x‐ray experiment program and LCLS-related
FEL and electron beam physics studies will be scheduled for at
least 75% of the scheduled operating time of the Two‐Mile Linac as a
whole. Maintenance to the LCLS linac requiring entry to the linac enclosure
may only be carried out when the entire linac is shut down for access.
FR1‐2 Operation of the LCLS will be completely compatible with simultaneous
operation of the linac in support of the PEP‐II program.
FR1‐3 It will be possible to switch from LCLS operation to acceleration of beam
from the damping rings (e.g. to End Station A) without the need to enter
the linac tunnel. Acceleration of beam from the CID guns may require removal of the xband
accelerating structure in sector 21 of the LCLS Linac. It will be
possible to remove this accelerating structure and make the linac ready for
beams from CID in 24 hours or less.
FR1‐4 Operations control of the LCLS linac and the electron beam will be carried
out from the SLAC Main Control Center. Necessary data for monitoring
and control of the LCLS will be available to the SLC controls system.

25. Functional Goals
FG1‐1 The LCLS linac and undulator systems should be designed to operate with bunch charges in the range 0.2 – 1.0 nanocoulombs.
FG1‐2 Operational availability should be greater than 90%. The linac is typically operated about 6600 hours per year for all purposes (PEP, FFTB, End Station A, tune‐up/training/studies)
FG1‐3 The traditional tolerance for transverse beam stability in a synchrotron source is 10% of beam size. This will be a challenging goal due to the small emittance of the LCLS beam.
FG1‐4 EPICS controls should be implemented where practical; it is expected that the injector, undulator systems, x‐ray transport/optics/diagnostics and end station systems will implement EPICS for device control.
FG1‐5 Achievement of the CD‐0 performance goals PG1‐1, PG1‐3, PG1‐4, and
PG1‐5 will be verified using devices that are part of WBS 1.4, X‐ray Transport, Optics and Diagnostics. The brightness measurement requires that an upper limit be determined for the x‐ray pulse duration, and that the total energy of the photon pulse be measured. The measurement will depend on calibration of the x‐ray attenuators, which must reduce the xray intensity by a factor of 10,000. Nonlinearity in the attenuator will itself be the subject of early atomic physics experiments at LCLS. For this reason, it is to be expected that the uncertainty in peak power output of the LCLS will be approximately a factor of 10, through the first year of operation ofthe facility.

26. Global Requirements Document
Defines Project Goals and Requirements
Project Completion
Compatibility with other uses of linac
Goals for achievement of scientific mission
Forms basis of risk assessment
“risks” are risks of not achieving GRD goals and requirements
Other kinds of risks are managed by other means

27. Preliminary Safety Assessment Document
5 kW beam power
15 GeV, 333 nA
28 GeV, 178 nA
150 kW Maximum Credible Incident
Operations beam power 1.7 kW

28. 4-Accelerator Readiness Reviews 5-Training and Qualification
DOE O 420.2X Requirements
4-Accelerator Readiness Reviews
5-Training and Qualification
6-Written Procedures
7-Internal Safety Review System
SLAC Operations in place and mature

29. Operations Budget and Staffing
$3,560,000 at $0.058 per kW*hr will buy 5580 hours of linac operation. however I shouild factor in the
building power. assume 6MW for facilities, so in six months building power will cost $1.525M. this leaves $2.035M for linac
power, enough for about 3,190 hours of LCLS linac operation. a full schedule for 6 months!

30. Level 2 – Level 3 Milestone Buffer
~30 Days