LCLS Injector Commissioning Readiness

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LCLS Injector Commissioning Readiness
David Schultz LCLS e- Beams System Manager

• DOE Order 420.2B Requirements
• SAD Status
• Compliance with SLAC Requirements
• SLAC Safety Overview Committee
• Accelerator Division Procedures
• Example - Running RF
• Injector Commissioning Schedule

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2007 Commissioning
Sector 21
Sector 20
Laser
stopper
BLM
BC1
L0a L0b Heater
LX
L1
Ins/SAB
Gun
Wall
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DOE Order 420.2B Requirements

• Safety Assessment Document
• The SAD for LCLS Injector Commissioning has been
  approved and is on file.
• Identifies the hazards and risks in the Injector
  
• Defines the mitigation of those risks
• It received internal review and review from
  safety committee chairs and safety officers.
• Final review and acceptance was through the
  Directors office.

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DOE Order 420.2B Requirements

• Accelerator Safety Envelope

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DOE Order 420.2B Requirements

• Accelerator Safety Envelope
• The ASE is documented within the SAD.
• Power levels and losses are defined by LCLS
  Physics.
• Shielding requirements are then based on
  analysis by the Radiation Physics group.
• The process and conclusions have been approved
  by the Radiation Safety Committee.
• Shielding and beam power is controlled through
  the Beam Authorization Sheet (BAS).
• Any work on shielding is controlled by the
  Accelerator Department, through the BAS,
  Radiation Safety Work Control, and Work
  Authorization.

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DOE Order 420.2B Requirements

• Unreviewed Safety Items
• All activities have been performed with, and all
  installed systems have been subject to, peer
  safety review (Citizens Committee approval).
• Future activities that involve safety issues are
  also subject to Citizens Committee approval
• Requiring safety analysis and mitigation.
• Controlled through the Accelerator Dept. and
  LCLS Work Authorization approval process.

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DOE Order 420.2B Requirements

• Training and Qualification
• Facility activities, commissioning, will be
  performed by the existing Linac operations and
  maintenance staff under the leadership of the
  LCLS team.
• A partnership between ASD and LCLS.
• Operations and Maintenance staff are trained to
  perform these tasks
• Written Procedures
• Procedures have been updated, as necessary, for
  these tasks.

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DOE Order 420.2B Requirements

• Internal Safety Reviews
• Will be performed in compliance with existing
  SLAC standards (SLAC ESH Manual Ch. 33), as a
  part of the existing SLAC Linac facility.
• Example, the PPS system is recertified annually
• Shielding Policy
• SLAC ESH Manual has a written statement of the
  shielding policy for ionizing and non-ionizing
  radiation.
• Good conformance to the requirements of DOE
  420.2B

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Compliance with SLAC Requirements

• SLAC Safety Overview Committee
• SLAC projects are guided by the SOC.
• The appropriate Citizens Committees needed for
  system approval are identified.
• LCLS Injector presented to the specified
  committees, approvals were obtained, action items
  were identified.
• Safety Officers and committee chairs also
  regularly toured the installation to checked for
  missed items.
• All action items have been cleared
• Signed off in the LCLS Injection Preparedness
  Document

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Compliance with SLAC Requirements

• Accelerator Division Procedures
• The Beam Authorization Sheet (BAS) is a
  prerequisite Control Room document for beam
  operations.
• The BAS requires formal approval from Radiation
  Physics, Accelerator Division Safety Office
  (ADSO) and Accelerator Operations.
• Specifies pre-running conditions, running
  conditions, and initial checkout requirements.
• Pre-running conditions must be signed off before
  operations begin.
• Assures that the ASE is maintained.

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Compliance with SLAC Requirements

• Example - Running RF
• The intent is to do high power RF processing of
  accelerator structures prior to beam operations
• An RF-only BAS was written by RP and ADSO.
• Action items from the non-ionizing radiation
  safety committee were cleared prior to BAS
  sign-off.
• Pre-running were signed off PPS was certified,
  shielding was checked, ion chambers locations
  and trip levels were set, the Gun RF source was
  locked off.

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Injector Commissioning Schedule

• Installation
• Gun installation is going on now.
• PPS certification of the gun RF source 3/20
• Lock off laser transport (ADSO).
• Beam Containment System certification 3/23
• BAS requirement
• Electron beam operations scheduled for 3/25
• To gun spectrometer (2m) at first.
• Major Linac access 3/26-28
• Complete Linac vacuum installation work.

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The LCLS Injection Preparedness Document

• Outstanding signatures
• Radiation Safety Officer
• Waiting for BCS certification
• Injector/Linac System Manager, and Controls and
  Accelerator Physics group leaders
• Waiting for gun installation completion.
• LCLS and ASD approval
• Waiting for the above

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Conclusion

• The requirements of DOE Order 420.2B have been
  met.
• With the success of this review.
• SLAC Safety Committees have reviewed all systems
  and have given approval.
• Accelerator Department procedures require that
• Safety systems are intact and certified (through
  the BAS)
• The ASE is maintained (through the BAS, through
  Work Authorization, and through Radiation Safety
  Work Control)
• Personnel are in place trained, ready to
  commission.

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end
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SLAC Citizens Safety Committees

• As Low as Reasonably Achievable (ALARA) Committee
• Earthquake Safety Committee
• Electrical Safety Committee
• Environmental Safety Committee
• Fire Protection Safety Committee
• Hazardous Experimental Equipment Safety Committee
• Hoisting and Rigging Safety Committee
• Laser Safety Committee
• Nonionizing Radiation Safety Committee
• Radiation Safety Committee