LCLS-II ARR Approach

1. LCLS-II ARR Approach John Corlett (with Ian Evans, John Schmerge) Accelerator Safety Workshop August 21, 2018

2. Outline • LCLS-II Scope • Review Process • Integration with Operations • ARR Modular Approach • Timeline • ARR Team • Early Injector Commissioning Plans • Cryo Systems Planning • Summary

3. Remove SLAC Linac from Sectors 0-10 New Injector and New Superconducting Linac LCLS-II New Cryoplant Existing LCLS Cu Linac Existing Bypass Line New Transport Line Two New Undulators And X-Ray Transport Exploit Existing Experimental Stations LCLS-II Director's Status Review, 20-22 March 2018 J. Galayda

4. Accelerator Readiness Reviews (ARR) – Scope • ARR processes are required for simultaneous operation of: • LCLS using the existing S-band copper linac and transport lines • LCLS-II accelerator systems • SXR and HXR beamlines • X-ray experimental areas • LCLS-II accelerator systems present new operational safety requirements • cryogenic liquids and gases, superconducting RF systems, hazardous energy control, lasers, oxygen deficiency hazards, pressure safety, high average power electron beams and photon beams, and noise

5. ARR Process • LCLSII-1.1-PM-0520 “LCLS-II Readiness Review Process” documents plans to comply with DOE requirements: • O 420.2.C “Safety of Accelerator Facilities” • G 420.2-1A “Accelerator Facility Safety Implementation Guide” • Leading to reviews: • Accelerator Readiness Review (ARR) • Equipment Readiness Review (ERR) • Instrument Readiness Review (IRR) • The LCLS-II Project also conducts Systems Readiness Reviews (SRR) prior to energizing and commissioning of new equipment and sub-systems

6. ARR Processes is Integrated with SLAC Operations Preparations for LCLS-II • LCLS-II Pre Accelerator Readiness Review 420.2C Gap Analysis addressed 6 main areas: • SAD & ASE • USI Process • Roles and Responsibilities • WPC for Credited Controls including safety systems and shielding • Conduct of Accelerator Operations • Contractor Assurance • Recommendations have been grouped into 5 broad categories, responses assigned and tracked in groups: • Update SAD/ASE • “Conduct of Operations at Accelerator Facilities” with updated Procedures and Directives • Staff Communication/Training • Accelerator Operations/Configuration Management • ES&H

7. Major Elements of Accelerator Readiness for Commissioning and Operations Pillar II Hardware and Physical Plant Readiness MPS PPS BCS Electrical systems Mechanical systems Conventional magnet systems Vacuum systems High-power RF systems Laser systems LCW systems Controls and instrumentation Shielding • Access control Beam dumps Fire protection systems Cryogenic systems Compressed gases Pressurized systems Superconducting magnet systems Superconducting RF systems Hazardous energy control Oxygen deficiency hazard systems Seismic secure Survey and alignment Special materials Pillar III Personnel Readiness Training and qualification program Documentation of training • Pillar I • Documentation and Procedures • ASE • SAD • USI process • Flowdown of requirements from standards • Commissioning plan • Configuration management process • Commissioning / operations procedures • Checklists • Controlled documents management program • QA program • Conduct of Accelerator Facilities Operations

8. Readiness Reviews – LCLS-II Team Preparations (1) • Preparations for reviews follow a “bottom-up” process defined in LCLSII-1.1-PM-0520 “LCLS-II Readiness Review Process” • The project and accelerator operations identify leads responsible for equipment and systems • These leads perform the work and produce the documentation demonstrating readiness for their area of responsibility • Provides templates for • Documentation summary • Presentation • The LCLS-II project also conducts non-ARR reviews that assist in readiness • Technical Readiness Review • Project Readiness Review (or Director’s Review)

9. Readiness Reviews – LCLS-II Team Preparations (2) • Project Systems Engineers, commissioning team, and operations team produce “bottom-up” documentation, and present to the whole team: • Scope • Design and review documentation • Checkout procedures and lists • Hazards and their mitigations • Authorization documents • QA • Configuration Control • Operations procedures • Training requirements • Commissioning plans • Identify any work remaining before starting commissioning Pillar II Hardware and Physical Plant Readiness Pillar I Documentation and Procedures Pillar III Personnel Readiness • Weekly meetings • Include installation, commissioning, transition to operations, and operations team leads

10. ARR Process – Modular Approach (1) •  • Early Injector Commissioning • 1 MeV electron beam from gun to temporary dump • RGD (will be treated as an ARR for preparedness, and will engage the ARR Committee) • Cryoplant and Cryogenic Distribution System including Cryomodules • Two 2 K helium refrigerators and associated ancillary equipment • Cryogenic helium distribution from the Cryoplant and through the Cryomodules returning to the Cryoplant • SRRs • ERR • LCLS S-band Copper Linac Beam Transport • 14 GeV Cu-linac beam from the new LCLS-II kicker to the tune-up dump upstream of the HXR undulator • ARR • LCLS-II Superconducting Linac and Transport Lines • 4 GeV beam from Gun B through the LCLS-II electron beam systems to the tune-up dump upstream of the HXR undulator and the tune-up dump upstream of the SXR undulator • ARR

11. ARR Process – Modular Approach (2) • Hard X-ray (HXR) Undulator and Photon Beam Operations • 14 GeV Cu-linac beam from the tune-up dump upstream of the HXR undulator through the HXR undulator to the beam dump • 4 GeV beam from the tune-up dump upstream of the HXR undulator through the HXR undulator to the beam dump • Photon production and transportation to hutches • ARR for electron beam from both Cu linac and from SCRF linac, and for photon beam to stoppers in each case • IRR for photon beam from stoppers to hutches • Soft X-ray (SXR)Undulator and Photon Beam Operations • 4 GeV beam from the tune-up dump upstream of the SXR undulator through the SXR undulator to the dump • Photon production and transportation to hutches • ARR for electron beam, and photon beam to stoppers • IRR for photon beam from stoppers to hutches • Routine Operations • Simultaneous operations of the LCLS and LCLS-II • HXR and SXR undulators • ARR

12. Major LCLS-II Hardware and Systems for Review • Early Injector Commissioning • Low energy beamline • Photocathode drive laser • Cathode load-lock • High-power RF systems • Gun B, 186 MHz • Buncher cavity, 1.3 GHz • LCLS S-band Copper Linac Beam Transport • Transport lines • LCLS-II Superconducting Linac and Transport Lines • Cryomodules • SCRF cavities • Cavity tuners • Cavity fundamental power couplers • HOM absorbers • Superconducting magnets • BPMs • Cryogenic system • Cryo plant • Distribution boxes • Bypass lines • End Caps • Feed Caps • High-power RF systems • Accelerating cavities, 1.3 GHz • Bunch compressor cavities, 3.9 GHz • Solid State Amplifiers • Laser heater • Bunch compressors • Kicker • Transport lines • Credited Safety Systems • Oxygen deficiency systems • PPS • BCS • Laser Safety Systems • Hutch Protection Systems • Hard X-ray (HXR) Undulator and Photon Beam Operations • HGVPU (horizontal gap vertical polarizing undulators) • Phase-shifters • Inter-undulator systems • Magnets • BPM • Photon stops • Radiation monitors • LCLS beam • Initial commissioning before SCRF linac beam is available • LCLS-II beam • Soft X-ray (SXR)Undulator and Photon Beam Operations • SXR undulators • Phase-shifters • Inter-undulator systems • Magnets • BPM • Photon stops • Radiation monitors • Cryoplant Commissioning • Oxygen deficiency systems • Helium and nitrogen storage • Helium purifiers • Oil processors • Helium recovery • Helium compressors • 4 K cold boxes • 2 K cold boxes • Interface box • Transfer lines • U-tubes • Pressure relief systems • Hearing protection • Cryogenic Distribution System including Cryomodules • Oxygen deficiency systems • Surface transfer lines • Distribution boxes • Vertical transfer lines • End caps • Feedcaps • Cryomodules • Pressure relief systems • Routine Operations • Safety Assessment Document • Accelerator Safety Envelope • Conduct of Accelerator Operations • Roles and Responsibilities • Operations Procedures • Training • Credited Controls • QA • Contractor Assurance • Work Planning Control • Unreviewed Safety Issue (USI) process • Maintenance plans

13. Timeline • ARRs are planned to be held after ~90% installation is complete and major systems integration can be verified • Systems readiness reviews assess major sub-systems, prior to the ARR or ERR • ERR and IRR committees will be formed from the ARR Committee members plus subject matter experts • A Project Readiness Review is planned be held prior to an ARR, ERR, or IRR

14. ARR Team • Ian Evans, John Schmerge coordinate LCLS-II and SLAC ARR activities • Integrated and coordinated: • between LCLS-II Project and Accelerator Directorate • with installation, commissioning, and transition to operations • An ARR Committee has been formed • Frank Kornegay (SNS retired - chair) • Bob May (JLAB) • Harry Fanning (JLAB) • Susana Reyes (LBNL) • Chuck Schaeffer (BNL) • Stuart Birch (ESS) • Frank Kornegay is contracted by the LCLS-II Project as ARR Committee Chair to manage the ARR committee, and to chair and manage the ERR and IRR committees

15. Early Injector Commissioning (EIC) Readiness Review • The LCLS-II injector will be the first systems commissioned • EIC has an approved exemption from the DOE O420.2C, “Safety of Accelerator Facilities” based on the classification of EIC equipment and operation as a Radiation Generating Device (RGD) • Following the SLAC Radiation Generating Devices Program Manual SLAC-I-760-2A30C-015 (SLAC RPFO Program Manual FO #035 Rev 4) under the SLAC Radiation Protection Program (RPP) requirements • Memo approving radiological safety aspects of EIC operation and classification of the EIC as a RGD consistent with the DOE 420.2.c, Section 3.c and 3.c.1.(b) exemption • Nevertheless LCLS-II used the ARR process described to introduce the team and the committee to the process • Summary documentation for all aspects of the commissioning • Presentations for all aspects of the commissioning • Scheduled presentations for the most critical content • Time allocated for ARR Committee follow up in any area • Team was prepared to present and discuss on all topics

16. EIC Readiness Review – Day 1 Agenda is Scheduled These presentations were prepared in advance and provided the ARR Committee with essential information

17. EIC Readiness Review – Day 2 Agenda is Open for ARR Committee to Follow Up These presentations were prepared in advance and available to the committee, and the teams ready to present and discuss as needed

18. ARR Committee Has Endorsed The LCLS-II Approach • Meeting held April 24-26, 2018 • 2 days Early Injector Commissioning Readiness Review • 1 day LCLS-II ARR strategy • ARR Committee approved EIC readiness following completion of installation and documentation • ARR Committee endorsed the LCLS-II approach to the ARR process

19. Next: Cryo Systems Readiness Reviews • Systems Readiness Reviews (SRR) will be held for Cryo Systems sub-systems prior to their energization, and vendor acceptance tests • Auxiliaries and gas systems • Warm compressors • 4.5 K Cold Box • 2 K Cold Box • These reviews follow the successful FRIB example, and will be managed by the LCLS-II Project • An Equipment Readiness Review (ERR), under oversight of the LCLS-II ARR Committee, will be held after completion of the above and prior to operation of the integrated CP and CDS/Linac • Linaccooldown: requires CP, CDS, CMs • Similar readiness reviews will be held for other major systems, ODH, PPS, etc. prior to an ARR

20. Next: Cryo Systems Readiness Review Timeline FY2018 FY2019 FY2020 TODAY Dec.2019 Apr. 2020 Jan. 2019 Installation CP2 Commissioning CP1 SRR SRR SRR SRR ERR TTO • Hardware • Controls • Procedures • Procurements • Staffing • Training • Installation Jan. 2020 Mar. 2020 LINAC COLD LINAC COOL-DOWN Auxiliaries Compressors 4K Cold Box 2K cold Box SRR System Readiness Review Both CP1 and CP2 ERR Equipment Readiness Review Transfer To Operation:tbd TTO E. Fauve JANUARY 2018 STATUS

21. Cryo Systems Readiness Review Criteria • Auxiliaries and gases • LN2 and GHe storage • Air compressors • Recovery compressors • He purifier • Warm compressors • Dry adsorbers • Loading with clean oil and clean He • Electrical controls racks • Warm He compressors • 4.5 K cold box • Dry adsorbers • Loading clean He • LN2 cooling • Turbines • 2 K cold box • Cold compressors • Interface box • Major elements of these reviews: • Oxygen deficiency hazards and monitors • Cryogenic hazards • Pressurized systems • Electrical systems • Process piping and equipment hazards • Training • Operations and maintenance

22. Summary • LCLS-II ARR strategy is developed and documents released • Integrated “bottom-up” approach engaging leads responsible for systems and processes • ARR Chair is contracted and ARR Team appointed • Early Injector Commissioning Readiness Review introduced the process to the LCLS-II and ARR Teams • LCLS-II ARR Team endorsed the process • Preparations for Cryoplant Commissioning and future ARR activities are being refined

23. End • Questions ?