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2L24 and 2L2L25 observations

14 hours 9 minutes ago
Log Number: 4509461Logbook(s): Body: 

2L24 cavities 5,6 and 7 are pulling soft faults on PLDE and difficult to operate these cavities. After looking at the waveforms all the cavities have a 45 Hz component in detuning. I also noticed this on all cavities, but to a lesser extent. Cavities 5,6 and 7 have harmonics of 45 Hz too
This sounds possibly like a pump, but not sure which one. There was some girder work done between 2L24 and 2L25 during SAM? It might be work checking downstairs physically.

bachiman

APPROVED Troubleshoot BF0L06 Polarity Fault

14 hours 15 minutes ago
Log Number: 4509458Logbook(s): Body: 

Once the PTW is on-issue this task is approved. Please coordinate with Ops before testing repairs / powering on. Ops can deliver beam to FC2 in parallel with powering on supply, and many FC2-limited beam studies are on the schedule.

moser

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MCC Operators Price, Christian
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