Aggregator
Machine update
CREW CHIEF SIGN IN
Log Number: 4515775Logbook(s): Body:
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 06-23-26
Time : 23:15:50
Day : Tuesday
Shift : Owl
Crew Chief : Howard
Program Deputy: Nissen
Team : D
Arm : Chaudhary
Designated SSO: Christian
LERF Operator:
Operators : Price, Chaudhary, Christian
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 06-23-26
Time : 23:15:50
Day : Tuesday
Shift : Owl
Crew Chief : Howard
Program Deputy: Nissen
Team : D
Arm : Chaudhary
Designated SSO: Christian
LERF Operator:
Operators : Price, Chaudhary, Christian
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
"8-hr escalation notification sent"
Crew Chief Shift Log, 2026-06-23 SWING
Log Number: 4515773Logbook(s): Tags: Body:
CEBAF SHIFT LOG
Shift Summary
Start of shift: Beam halted due to closed vacuum valves and Hall C dump LCW.
Crew Chief Timesheet Summary: 23 Jun 2026 SWING
Log Number: 4515772Logbook(s): Tags: Body:
Accelerator
PHYSICS
STUDIES
RESTORE
ACC
DOWN
OFF (SAM)
Planned
8
0
0
1A SLM Energy Lock Disengaged
2L02-1 KMAI Fault Even When Bypassed??
Downtime Incident CREATED: 2L02-1 KMAI fault dropped zone out of HV, round 2
QuickPic - xB request 7.5nA
QuickPic - xB request 5nA on Carbon 1um target
"xB BNR for target change"
Machine update
Checked GP After LEM
HYST AREA 7-0 Cycles Magnets for LEM
Downtime Incident CLOSED: 2L02-1 KMAI fault dropped zone out of HV
FSD Masking Tool: Successful System UN-Masking for: BeamLossMonitor
Log Number: 4515753Logbook(s): Tags: Body: System UN-Masking for: BeamLossMonitor
User: eforman
Areas: All
BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM
User: eforman
Areas: All
BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM
FSD Masking Tool: Successful System UN-Masking for: BeamLossMonitor
Log Number: 4515752Logbook(s): Tags: Body: System UN-Masking for: BeamLossMonitor
User: bschauml
Areas: All
BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
IL
User: bschauml
Areas: All
BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
IL
LEM South Linac
The following cavities have been bypassed: 2L02-1
Log Number: 4515750Logbook(s): Tags: Body:
The following cavities have been bypassed:
2L02-1
Username: bschauml
Date/Time: 06-23-26_21:55:41
RF Status: Bad
Tuner Status: Good
Comment: Bypassed - stepped off +100k - KMAI Faults
Special Instructions:
Maintenance Tag: Component: Operator Entry - See SME, Component: Operator Entry - See SME










