LCLS Personnel Protection System and Beam Containment System
LCLS Personnel Protection System and Beam Containment System E. Michael Saleski PPS and BCS Systems Manager October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
PPS and BCS Overview Path for design development, review, and approval System Scope Present Status of Systems and Reviews October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
Safety Systems Development and Review Process LCLS Engineering Specification Document (ESD) is developed in consultation with System Engineers, RP, and LCLS Management System Engineers design system LCLS Project Reviews (SCR, PDR, FDR) are conducted RSO/Radiation Safety Committee approval is also required System is built by System Engineers and Techs October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
Safety Systems Development and Review Process October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
PPS Scope Mixture of: New PPS Systems Existing PPS Systems with minor modifications Hutch Protection Systems (HPS) Plan to utilize PLC architecture New at SLAC, increases review burden October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
PPS Scope October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
Near Experimental Hall Draft Layout October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
Simplified PPS System Architecture October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
PPS Reviews Status PPS Global SCR: Nov 18, 2005 Injector (linac+BSY) Informal PDR: Feb ’ 06 Injector (linac+BSY) FDR: April 27 th October 12, 2006 FAC: PPS and BCS RSC subcommittee: Functional Requirements Review: March 29 th RSC subcommittee: Safety Lifecycle Review: April 14 th RSC subcommittee: Technical Review: May 8 th RSC full committee: Aug 23 rd; Sept 7 th E. Michael Saleski@slac. stanford. edu
PPS Status for Jan 2007 Injector Commissioning and Downstream Development LCLS Injector PPS Reviews are Complete RSC ‘conditional approval’ obtained: Produce written response to FDR and RSC subcommittee comments and findings (done) RSC would like to review Certification procedure (scheduled for end of October) Hardware drawings, wiring diagrams are complete; installation in progress Begin detailed design and review of downstream systems in Fall 2006 (BTH, NEH) October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
BCS Definition and Project Scope Prevents radiation from ‘escaping’ the shielding enclosure Direct measurements of radiation or beam loss Protection of safety-critical collimators and stoppers Entirely ‘new’ LCLS BCS needed New gun = new shut-off mechanisms Support two simultaneous programs (LCLS & PEP) = new set of shut-off paths Reduce mutual interference of programs as much as possible = desire targeted shut-offs if plausible October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
BCS System Scope Original ‘Mode-switching’ BCS proposal has been sidelined for now Propose an ‘Interim BCS’ where conservatively “All BCS faults shut-off all Guns. ” Mode-switching requirements are now better understood – move forward with second proposal for 2007 downtime implementation October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
Sidelined BCS Modes October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
Interim BCS System Architecture October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
BCS Device Scope 2 LION pairs in Injector Region, plus 2 flow switches Redundant LIONs will be run the entire length of the Beam Transport Hall (above ground beamline) Numerous BTM shield walls, plus IC pairs, in BTH At least two BCS power-limited devices in BTH = 4 ICs Electron Dump BCS Implementation… X-Ray system BCS should be 100% passive (no active components) October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
Proposed Electron Dump BCS October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
BCS Status for Jan 2007 Injector Commissioning and Downstream Development Interim design PDR and FDR are complete (Sept 8 th and Oct 6 th) Follow-up review of ‘SBI’ implementation needed New LCLS BCS device compliment for Injectorthrough-TD 11 operation is approved by the RSC (Sept 28 th) RSC Review of Interim BCS system design is scheduled for Oct 17 th New BCS device compliment for downstream systems is currently being specified – much is dependent on LCLS ‘ray traces’ October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
Summary PPS: Injector Vault will be ready for Jan 2007 operation Downstream system development looks to proceed on schedule BCS: Interim BCS design looks to be on track for Jan 2007 operation New Mode-switching proposal ready for RSO examination in early 2007 Detailed analysis of downstream system BCS device requirements is beginning October 12, 2006 FAC: PPS and BCS E. Michael Saleski@slac. stanford. edu
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