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HW DIS faults for IPM{2,4,6,8,A}R06 stack

1 day 5 hours ago
Log Number: 4481954Logbook(s): Entry Makers: victorcBody: 

There are OPS-PRs for this BPM stack regarding Low X and Y SAT alarms, which go in and out. However, I'm making this one for the HW DIS fault that has since popped up for the whole stack. SME suggested the Low SAT alarms are due to radiation damage — I'm assuming this could be related to that as well?

victorc

POFF optimized 2L03-7 + PLDE

1 day 5 hours ago
Log Number: 4481948Logbook(s): Entry Makers: kpriceBody: 

Cavity was dropping to SEL on PLDE faults. Tried a POFF optimization to see if it would help at all, but it didn't seem to. It almost looks like cavity phase was struggling to regulate following a SL gangphase adjustment and it couldn't catch up. I put the SL GP back where it was before my adjustment and tried recovering the cavity normally, this worked. Not confident that the two are entirely related; it could be that the cavity would have recovered normally after that last try regardless.

kprice

Operator SIGN IN

1 day 7 hours ago
Log Number: 4481929Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             03/31/2026
SHIFT:               Owl

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
victorc

Operator SIGN IN

1 day 7 hours ago
Log Number: 4481927Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Price
DATE:             03/31/2026
SHIFT:               Owl

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
kprice

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