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HarpFitter: IHA1E01
Crew Chief Shift Log, 2026-06-10 DAY
Log Number: 4510353Logbook(s): Tags: Body:
CEBAF SHIFT LOG
Shift Summary
Start of shift: Wrapping up Cold Start-Up
Crew Chief Timesheet Summary: 10 Jun 2026 DAY
Log Number: 4510352Logbook(s): Tags: Body:
Accelerator
PHYSICS
STUDIES
RESTORE
ACC
DOWN
OFF (SAM)
Planned
0
0
8
MQB1S10 Match Download
Log Number: 4510351Logbook(s): Tags: Body: MQB1S10 Match Download
hostname: opsl02
CED workspace: OPS
CED login_key: pro
CHANNELNEW VALUEOLD VALUEMQN1S04.BDL-20230.4554-10967.4619MQL1S05.BDL14606.141314606.1455MQB1S06.BDL-12357.7374-12190.7998MQL1S08.BDL6213.29294424.7900MQB1S10.BDL-1039.80102277.1025
hostname: opsl02
CED workspace: OPS
CED login_key: pro
CHANNELNEW VALUEOLD VALUEMQN1S04.BDL-20230.4554-10967.4619MQL1S05.BDL14606.141314606.1455MQB1S06.BDL-12357.7374-12190.7998MQL1S08.BDL6213.29294424.7900MQB1S10.BDL-1039.80102277.1025
COMPLETED Troubleshoot Shunt on MYR9R03
COMMENT ON Troubleshoot Shunt on MYR9R03
Emittance Measurement: IHA1E01 Y-plane
COMMENT ON MPS system maintenance and repairs during physics run
COMMENT ON Troubleshoot BF0L06 Polarity Fault
Emittance Measurement: IHA1E01 X-plane
IHA1E01 X-plane Emittance Measurement Analysis
INJECTOR=>BOXES=>BF0L06=>MBF0L06 (MISMATCH) has been enabled in alarm handler
NLinac Flow decrease
Emittance Measurement: IHA1E01 X-plane - ABORTED - 1st and 4th point bad left side
COMMENT ON PSS Video System Upgrade
COMMENT ON Troubleshoot Shunt on MXXAS05
FSD Masking Tool: Successful System Masking for: CryoModule
C75/C100 fault rate management
Log Number: 4510335Logbook(s): Entry Makers: michaelmBody:
1L07-8 derated 0.2 for quench rate management
1L23-1 derated by 0.1 by ops overnight. Updating odvh
2L03-6 derated by 0.2 for fault rate management
2L24-5 derated by 0.2 for fault rate management
2L25-6: Derated from 19.2 > 17 overnight by AES-RF; evaluate on next maintenance day
2L25-7: Derated from 18.5 > 17 overnight by AES-RF; evaluate on next maintenance day










