Top-off Safety Analysis for XFP (17BM) Beamline
- Brookhaven National Lab. (BNL), Upton, NY (United States). Photon Sciences Directorate
The purpose of this report is to analyze the top off safety of XFP beamline, which was not covered by the top off design report issued in 2014. XFP beamline has a mirror in front end (FE) to provide a vertical offset on the ratchet wall collimator aperture. This report will only be used as a basis to approve the topoff operation of XFP beamline. The topoff operation of new beamlines and the approval process is guarded by procedure PS-C-ASD-PRC-183. The primary radiological safety concern for the top-off injection, with the FE safety shutters open, is the scenario where injected electrons could be conveyed down to the beam line through the front end. With the mirror offset, the electrons can never escape FE to reach the first optical enclosure (FOE). So the worst scenario will be the electrons propagating to farthest downstream in FE, and the radiological effect of this fault condition is discussed in this note.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- DOE Contract Number:
- SC0012704
- OSTI ID:
- 1505102
- Report Number(s):
- NSLSII-ASD-TN-184; BNL-211154-2019-TECH
- Country of Publication:
- United States
- Language:
- English
Similar Records
An integrated bremsstrahlung safety shutter and collimator designed for the APS front end operating in the top-up mode
Radiological Consequences of Beam Loss on Beamline Front End Collimator during Top-off Injection into the Storage Ring