Speaker
Description
The Ring Injection Dump (RID) is a high energy beam transport (HEBT) region in the SNS accelerator where extra beam is aborted into a 150 kW water cooled beam stop. The location of the two beams on the adjacent vacuum window is currently not well understood. A new quadrupole magnet is being added to the RID beamline as part of the Proton Power Upgrade (PPU) project, so an imaging system was incorporated into the design to properly steer the beams. The design of the RID Imaging System required it to be located as close as possible to the RID window and to have a new vacuum window with a fluorescent coating on it so that the location of the beams on the window could be seen accurately. To reduce the radiation rates at the imaging system location during installation, the downstream RID vacuum window and beam stop needed to be replaced first. Replacing the RID vacuum window and beam stop are challenging remote handling tasks under normal circumstances. While the beam stop replacement went smoothly, the vacuum window replacement encountered many setbacks that required creative and unconventional methods to successfully complete the job.
| Themes for the contribution | 5 Target facility challenges: |
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