LCLS Ultrafast Science Instruments (LUSI)

1. LCLS Ultrafast Science Instruments(LUSI) Environment Safety and Health M. Scharfenstein – ES&H Coordinator August 19-21, 2008

2. Integrated Safety and Environmental Management • SLAC Integrated Safety and Environmental Management • SLAC ES&H Manual • LCLS Directorate Plan • LCLS ES&H management practices • LCLS Requirement, Specification and Interface Documents • Physics Requirements Documents , Engineering Specification Documents , Interface Control Documents , etc • LCLS Work Authorization • SOC Reviews • ES&H Reviews • PMT sign-off • The HAR reflects that LUSI is being developed following • DOE O 413.3A / Program and Project Management • DOE O 420.2A / Accelerator Safety • DOE O 450.1 / Safety Management System

3. Living document subject to an annual review, following LCLS QA protocols Hazards Analysis Report Reviewed and Approved by the DOE Stanford Site Office DOE O 413.3A / Program and Project Management DOE O 420.2A / Accelerator Safety DOE O 450.1 / Safety Management System Peer Review Hazards Analysis Report R. Hislop SME, Author & Reviewer APS F. O’Neil SME, Author of GLAST HAR Hazards analysis Overview of hazards Specific details in break outs Hazards Analysis

4. Hazards Analysis cont’d • The purpose of this HAR is to identify hazards associated with the design and operation of the LUSI project; assess risk; and establish controls • Hazards capable of causing injury to personnel, harm to the environment, or damage to critical hardware have been considered in the analysis • This HAR documents the safety analysis of the LUSI instrument design/build/install & test • A separate Operating and Support Hazard Analysis (O&SHA) will be developed for LCLS experiments. The O&SHA will evaluate activities for hazards introduced into the system by operational and support procedures

5. Hazards Analysis cont’d • The Environmental Assessment developed for the LCLS resulted in a Finding of No Significant Impact encompassed the physical space occupied by LUSI and its operations. • LUSI instruments are being designed so that they will not pose hazards to people or the environment. • The most significant potential hazard associated with LUSI instruments is that associated with ionizing radiation. • The LUSI instruments are designed to 10CFR 835 • defines radiation protection regulations for the protection of individuals from ionizing radiation • LUSI will design, build, install and test instruments within parameters of LCLS SAD • The instruments will comply with the approved Accelerator Safety Envelope (ASE)

6. Overview of Hazards The results of the Hazards Analysis Report were consistent with those of the LCLS analysis that resulted in a low hazard facility determination following the criteria defined in DOE-O 420.2B, Safety of Accelerator Facilities, based on the following: • LCLS requirements for SLAC Linac operations are well within existing safety and operating envelopes of the facility. • The average power of the LCLS x-ray beam, the energy and power of the electron beam, and hence the radiation hazard they pose are all well within the range of applicability for SLAC shielding and safety systems • The risk (probability & consequences) of all hazards will be similar in nature and magnitude to those already found in the present accelerator storage ring experimental programs • Existing and mature programs (citizen safety committees, ES&H division, Work Authorization) will be engaged to ensure that all aspects of the design, installation, and testing phases of LUSI will be properly managed

7. Workplace Hazards Analysis Radiation Fire Protection Electrical Seismic Chemical Thermal/Cryogenic Mechanical Environmental Insults Air Emissions Waste Material Disposal Magnetic Oxygen Deficiency Vacuum / Pressure Laser Hardware Design Hazards Pinch points Sharp corners LUSI Configuration X-RAY PUMP/PROBE

8. The hazard assessment process is a principal factor in the understanding and management of technical risk. System Safety is an integral part of the overall program risk management decision process Hazard severity is an assessment of the worst potential consequence, defined by degree of injury or property damage, which could occur Probability is the likelihood that an identified hazard will result in a mishap, based on an assessment of such factors as location, exposure in terms of cycles or hours of operation, and affected population. These levels are derived from MIL-STD-882D, Standard Practices for System Safety. Defense Standards are also used by other non-Defense government organizations, technical organizations, and industry Hazard Assessment Process

9. System Safety is an integral part of the overall program risk management decision process Design to Eliminate Hazards Design to Control Hazards Provide Safety Devices Provide Warning Devices Provide Procedures or Training Hazard Acceptance or Terminate System System Safety

10. Occupational Safety Requirements The LUSI equipment shall be designed and constructed in such a manner to protect the safety of workers, the public and the environment following 29CFR1910. The safety philosophy and practice to be followed on the LUSI project will include the following elements: • DOE P 450.4 Safety Management System Policy • Adherence to SLAC Work Smart Standards • 10CFR835 Occupational Radiation Protection / ALARA • Controlling hazards by eliminating them whenever possible • Implementing safety programs to ensure worker safety during construction and testing • Performing independent design reviews

11. Installation Phase Hazards • Radiation –there is no source of radiation during the fabrication and installation phases of the project • Fire Protection - LUSI is protected by a conventional fire sprinkler system and a Very Early Smoke Detection Apparatus (VESDA) system. • Electrical –hazards will be controlled by adhering to NFPA 70E standards • Thermal/Cryogenic –Handling of cryogens shall be compliant with SLAC ES&H Manual Chapter 36, Cryogenic Oxygen Deficiency Hazard Safety • Oxygen Deficiency – hazard potential is minimal due the small quantities of gases in liquid state that will be used within the facility • The requirement for air monitoring will be included in the evaluation of the hutches. • Vacuum / Pressure - LUSI consists of numerous vacuum components and the vacuum chambers will have burst disk that are compliant with 10CFR851. • Pressure relief valves are integral to the vacuum system to prevent them from being over-pressurized while venting.   • Others = Chemical, Environmental Insults, Magnetic, Mechanical, Seismic • Identified and addressed

12. Workplace Hazards Analysis Radiation Fire Protection Electrical Seismic Chemical Thermal/Cryogenic Mechanical Environmental Compliance Control of Effluents Oxygen Deficiency Vacuum / Pressure Robot Arm Laser Occupational Safety Radiation Exposure Control Personnel training Shielding configuration control Monitoring Safety Interlocks Beam Loss Control Radiation monitors TLDs for personnel and areas Waste Minimization Experiment review Quantities minimized Less hazardous substitutions Disposal process Operations Safety

13. Hazard Consequence Rating

14. Conclusion • Integrated Safety and Environmental Management • Following SLAC ISEMS Plan • LCLS Directorate Plan • Following SLAC ES&H Manual • Following LCLS ES&H management practices • Work Authorization • Hazard Analysis Report • Approved by DOE SS0 • ES&H requirements met for CD-2

15. ES&H Thank you