Aggregator
COMMENT ON SA01B10 Investigation of Bootstrap
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Follow-up Re: Transient MQA2R01 mismatches
2L18 HV Troubleshooting Dropped SL to Lockdown
Log Number: 4521195Logbook(s): Entry Makers: alexsBody:
While cleaning contacts in the 2L18 interlock panel for the recent HPA Not Ready HV drops, the South Linac was inadvertently dropped to lockdown when a lug came loose, interrupting the off/safe signal. Lug was reinstalled and work stopped until the segment gets back to Power Permit.
ABIL tag #9610 on VBV2H01A has been removed
ABIL tag #9629 on VPG2H00A controls has been removed
ABIL tag #9611 on VFV2H01A has been removed
MQA2R01: Set to zero
APPROVED SA01B10 Investigation of Bootstrap
Machine Update
Linac RF Headroom
Log Number: 4521184Logbook(s): Entry Makers: moserBody:
33MeV in the NL. Highest I've seen yet this run!
69MeV in the SL.
And I've just been made privy to handy gradient reach over time plotting suite. Thanks Jerone! Figure 2.
According to the suite, 36MeV in the NL and 96MeV in the SL.
36MeV in the NL makes sense if you aren't reserved 4MeV for lock headroom, which Figure 1, i.e. LEM, does.
96 vs 69 MeV in the SL doesn't quite square, however, so examining the suite to ensure its analysis is correct.
QuickPic - South Linac Full Survey
QuickPic - North Linac Full Survey
COMMENT ON Flush Arc 5 JC Dipoles
APPROVED ONGOING Flush Arc 5 JC Dipoles
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Program Deputy Summary, presented 2026-07-08
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RSEP9A Internal LCW Flow Sensor, ABIL tag #1968, Expected Removal Date changed.
Log Number: 4521172Logbook(s): Body: The following Bypassed Interlock had it's Expected Removal Date changed in the Accelerator Bypassed-Interlocks Log (ABIL)
Previous Expected Removal Date: 09 Jul 2026
New Expected Removal Date: 08 Jul 2026
Who made the change: diggs
Justification for the change: Internal flow meter is part of MPS LCW detection system.










