Coordination with Accelerator Systems

1. Coordination with Accelerator Systems Roger Erickson Accelerator Operations Department June 30, 2009

2. Jurisdictional Boundary • Operation and maintenance of the Linear Accelerator Facility are the responsibility of the Accelerator Systems Division (ASD). • Operation and maintenance of the NEH facilities are the responsibility of the Experimental Facilities Division (XFD). • The Front End Enclosure (FEE) is at the boundary. • Treaty document signed March 13, 2009.

3. Front End Enclosure • The FEE will be managed and operated by the ASD. • All FEE controls are operable from MCC, subject to policies in the ASD Operations Directives. • An ASD Area Manager has been assigned to the FEE to oversee maintenance and installation work. • The Accelerator Division Safety Officer (ADSO) has safety oversight responsibility for the FEE.

4. Photon Beam Lines • XFD will provide technical leadership for the design, construction, and commissioning of photon beamline equipment and techniques. • A designated XFD Photon Scientist will have authority to replace, modify, adjust, and operate photon beamline devices in the FEE, subject to ASD work control and safety oversight. • XFD will develop operating configurations and documentation for routine beam operations.

5. Authorization for Beam Operations • ASD is responsible for safety of beam operations up to the last stoppers in the FEE. • Operations are subject to the Beam Authorization Sheet (BAS) which has been extended to include the FEE. • The BAS is developed by the Radiation Physics Department in close collaboration with the ADSO and ASD Operations staff.

6. Authorization for Photon Beams • Photon beams beyond the FEE are the responsibility of XFD. • Photon beam operation in the NEH will be subject to a Beam Line Authorization sheet, similar to the BAS, developed by the Radiation Physics Department in collaboration with the XFD staff.

7. Personnel Protection Systems • The Personnel Protection System (PPS) for the Linear Accelerator Facility through the FEE is operated by ASD staff from the MCC control room, subject to ASD policies and procedures. • The PPS for NEH hutches will be operated by XFD staff and users from the NEH, subject to XFD policies and procedures.

8. Photon Stopper Controls • The stoppers in a photon beam line in the FEE can be opened by users in the NEH, but only when: 1.) The stoppers have been enabled by the ASD MCC Operations staff, and 2.) The hutch has been enabled (“put online”) by an authorized XFD staff member. and 3.) The hutch is in a search-secure condition (by PPS interlocks). • The “enabling” operations are done with separate key-controlled switches, subject to BAS and BLA requirements.

9. Program Control • Long term scheduling issues are resolved by the Accelerator Scheduling Committee, as described in SLAC Guidelines for Operations. • Medium term scheduling issues will be sorted out through close on-going communication between XFD and ASD operations staff. • ASD holds daily progress and maintenance coordination meetings in MCC where short term scheduling and maintenance issues are identified and resolved or escalated.

10. Historical Precedents • Many years of experience with the PEP-II/BaBar and Linac/ESA programs have shown that this model can be very effective for managing a technically demanding operations program consistent with a high standard of safety.

11. Ready to Go! • In summary, We have a dedicated staff of experienced physicists, engineers, and technicians ready to provide photon beams to serve the user community. We have a mature system of policies and procedures to ensure safety and effectiveness in the operation and maintenance of the facility. We have a marvelous new machine, and we are eager to run!