SLAC Radiation Safety Work Control Form Process: A means of managing safety system configuration control Zoe Van Hoover: August 22, 2018

Radiation Safety Work Control Form RSWCF is used to manage work on configuration controlled radiation safety systems at SLAC: Personnel Protection System (PPS) Beam Containment System (BCS) Shielding

Radiation Safety Work Control Form Each SLAC organizational unit responsible for operating an accelerator facility has a RSWCF process Accelerator Facility Operations Organization RSWCF Two Mile Linac Facility & SPEAR-3 Accelerator Accelerator Operations and Safety Division Electronic Form LCLS Experimental Areas LCLS Paper Form SSRL Experimental Areas SSRL NLCTA and ASTA AD Test Facilities RSWCF format and minor details vary for each facility, but the process is the same across the lab.

Radiation Safety Work Control Form Step 1: Identify work that requires a RSWCF. Labeling Training CATER* integration ADSO and Area Manager of new CATER entries * CATER = Computer Assisted Trouble Entry and Reporting

Radiation Safety Work Control Form Step 2: Designate “Person Responsible,” initiate a RSWCF, describe radiation safety implications of work, and get Area Manager approval to proceed with work planning. Person Responsible: Directly doing or overseeing work Understands: Scope of work Radiation safety implications RSWCF process Responsible for only allowing work when RSWCF is in the “Work Approved” state.

Radiation Safety Work Control Form Step 3: ADSO completes “Requirements Before Starting Work” and “Work Completion Requirements. ADSO and RP sign. Person Responsible Signs.

Radiation Safety Work Control Form Step 4: Operator In Charge (OIC) ensures that requirements before starting work are met, then signs to move the RSWCF to “Work Approved.” Hold a PPS key in a keysafe Padlocks in place locking off hazard Stoppers disabled Step 5: Do the work!

Radiation Safety Work Control Form Step 6: Person Responsible or Area Manager complete work completion fields.

Radiation Safety Work Control Form Step 7: ADSO reviews work completion fields and moves form to “Work Complete” state. Step 8: OIC reviews and signs to move RSWCF to the “Closed” state. Hazard controls may now be revoked.

Radiation Safety Work Control Form Linear Accelerator Facility electronic RSWCF rolled out in January 2011 ~ 1450 forms in 7 years SPEAR-3 Accelerator Facility started using electronic RSWCF in May 2012 ~700 forms in 6 years Both Facilities 2 to 10 per maintenance day ~ 30 RSWCFs per extended downtime