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Aggregator

Operator SIGN IN

11 hours 23 minutes ago

Log Number: 4508381Logbook(s):

ELOG
LERFLOG

Body: ACCELERATOR OPERATOR SIGN IN FORM OPERATOR: Thomas
DATE: 06/04/2026
SHIFT: Day

The operator has read the following:

ELOG
PD Shift Plan
Radiation Surveys for PSS Segments in Controlled Access
PSS Log

dthomas

"Expert looking at 0L04-7"

Recent Log Entries

11 hours 26 minutes ago

Log Number: 4508380Logbook(s):

SRFLOG
ELOG
RFLOG

Entry Makers: jhowardBody:

jhoward

The following cavity histories have been updated: 0L04-7

Recent Log Entries

11 hours 29 minutes ago

Log Number: 4508379Logbook(s):

ELOG
RFLOG

Tags:

Autolog

Body:

The following cavity histories have been updated:
0L04-7
Username: jhoward
Date/Time: 06-04-26_08:19:01
RF Status: Good
Tuner Status: Good
Comment: C100 Unbypassed - Working on Recvoering from quenches
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

jhoward

The following cavity histories have been updated: 2L24-3

Recent Log Entries

11 hours 55 minutes ago

Log Number: 4508377Logbook(s):

ELOG
RFLOG

Tags:

Autolog

Body:

The following cavity histories have been updated:
2L24-3
Username: shriner
Date/Time: 06-04-26_07:53:00
RF Status: Bad
Tuner Status: Good
Comment: C100 Bypassed - drops zone from HV
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

shriner

2L24-3 still drops zone HV

Recent Log Entries

12 hours 2 minutes ago

Log Number: 4508375Logbook(s):

ELOG

Entry Makers: shrinerBody:

cavity history indicates it was recovered yesterday without issue, but the zone is still tripping as shown in the linked entry

shriner

FSD Masking Tool: Successful System UN-Masking for: BeamLossMonitor

Recent Log Entries

12 hours 16 minutes ago

Log Number: 4508374Logbook(s):

ELOG

Tags:

Autolog

Body: System UN-Masking for: BeamLossMonitor
User: samari
Areas: Injector

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09

samari

MOLLER Install Update 06/03/2026

Recent Log Entries

12 hours 29 minutes ago

Log Number: 4508373Logbook(s):

MOLLER
ELOG

Tags:

Moller
PD

Entry Makers: jonesgaskelldwineskashydougberdnikciprianBody:

EIC Techs moved Down Stream Enclosure on to beam line Hall A. Hall A techs continued building grout forms for Main Detector and Barrite Wall rails. Hall A prepared, for walk through tour by Director and company.

lhurt

CREW CHIEF SIGN IN

Recent Log Entries

12 hours 31 minutes ago

Log Number: 4508372Logbook(s):

ELOG
LERFLOG

Body:
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 06-04-26
Time : 07:13:48
Day : Thursday
Shift : Day

Crew Chief : Howard
Program Deputy: Moser
Team : D
Arm : RADCON
Designated SSO: Thomas
LERF Operator:
Operators : Thomas

This stamp certifies that the above Crew Chief has read/reviewed/received the following:

jhoward

The following cavity histories have been updated: 2L26-3

Recent Log Entries

12 hours 36 minutes ago

Log Number: 4508371Logbook(s):

ELOG
RFLOG

Tags:

Autolog

Body:

The following cavity histories have been updated:
2L26-3
Username: samari
Date/Time: 06-04-26_07:12:05
RF Status: Bad
Tuner Status: Good
Comment: C100 Bypassed - HPA Bay 1 faulted
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

samari

Crew Chief Shift Log, 2026-06-04 OWL

Recent Log Entries

12 hours 41 minutes ago

Log Number: 4508370Logbook(s):

ELOG

Tags:

ShiftSummary

Body: CEBAF SHIFT LOG Shift Summary

Start of shift: Inj & NL in BP, SL & BSY in PP; RF Recovery & Moller Studie

deir

Crew Chief Timesheet Summary: 04 Jun 2026 OWL

Recent Log Entries

12 hours 42 minutes ago

Log Number: 4508369Logbook(s):

ELOG

Tags:

BeamAccounting

Body: Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 0 1 0

deir

2L16 all cavities constant arc faults

Recent Log Entries

13 hours 5 minutes ago

Log Number: 4508368Logbook(s):

ELOG
RFLOG

Entry Makers: samariBody:

Tried to resolve by taking it into idle then back, no dice.

samari

COMMENT ON RF Recovery for 2026 High Energy Run

Recent Log Entries

13 hours 6 minutes ago

Log Number: 4508367Logbook(s):

ELOG

Body:

Restored ODVHs in 1L11-5 (6), 1L11-7 (11.8), 1L12-3 (13), 1L12-8 (12.3), 1L21-3 (8.8), 1L21-4 (8.9).

Recovered 2L07-1, 2L07-2, 2L18-7, and 2L19-6 into RF. All were stable up to their ODVHs.

deir

MBF0L06 not turning on

Recent Log Entries

13 hours 27 minutes ago

Log Number: 4508366Logbook(s):

DCLOG
ELOG

Entry Makers: samariBody:

Seems like it turned off without any faults around 3:20, and it won't come back on.

samari

Recovered 2L19-6, 2L07-1, 2L07-2, 2L18-7

Recent Log Entries

13 hours 34 minutes ago

Log Number: 4508364Logbook(s):

ELOG

Entry Makers: deirBody:

Was able to achieve ODVH with all of them.

deir

Injector Alarm Limits Set

Recent Log Entries

13 hours 34 minutes ago

Log Number: 4508363Logbook(s):

POLOG
ELOG

Body:
Record

samari

The OPS DRVHs for the following cavities have been updated: 2L17-5

Recent Log Entries

13 hours 36 minutes ago

Log Number: 4508362Logbook(s):

ELOG
RFLOG

Tags:

Autolog

Body:

The OPS DRVHs for the following cavities have been updated:
2L17-5
Username: deir
Date/Time: 06-04-26_06:11:24
RF Status: Good
Tuner Status: Good
Comment: DRVH=3.000 Stable at 3, not above. https://logbooks.jlab.org/entry/4508361
Previous OPS DRVH: 6.9
Special Instructions: .

deir

2L17-5 on at 3.0 but minor increasing in GSET cause huge TDETA jumps

Recent Log Entries

13 hours 37 minutes ago

Log Number: 4508361Logbook(s):

ELOG

Entry Makers: deirBody:

Fig 1: Increasing GSET from 3.0 to 3.1 causes very large dip in TDETA (-60 degrees), then crfp and gask spike, and the cavity trips off.

deir

The following cavity histories have been updated: 2L18-7

Recent Log Entries

13 hours 54 minutes ago

Log Number: 4508360Logbook(s):

ELOG
RFLOG

Tags:

Autolog

Body:

The following cavity histories have been updated:
2L18-7
Username: deir
Date/Time: 06-04-26_05:53:27
RF Status: Good
Tuner Status: Good
Comment: Recovered up to ODVH
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

deir

COMMENT ON: get 0L04 gradient calibration data

Recent Log Entries

14 hours 28 minutes ago

Log Number: 4508359Logbook(s):

ELOG

Body:

Reviewed and ready to proceed.

deir

Shift Information

Shift	Swing
CEBAF Program
MCC Crew Chief	Richardson
MCC Operators	Anthony
Program Deputy	Moser
Announcements

Additional Info

Aggregator

Operator SIGN IN

"Expert looking at 0L04-7"

The following cavity histories have been updated: 0L04-7

The following cavity histories have been updated: 2L24-3

2L24-3 still drops zone HV

FSD Masking Tool: Successful System UN-Masking for: BeamLossMonitor

MOLLER Install Update 06/03/2026

CREW CHIEF SIGN IN

The following cavity histories have been updated: 2L26-3

Crew Chief Shift Log, 2026-06-04 OWL

Crew Chief Timesheet Summary: 04 Jun 2026 OWL

2L16 all cavities constant arc faults

COMMENT ON RF Recovery for 2026 High Energy Run

MBF0L06 not turning on

Recovered 2L19-6, 2L07-1, 2L07-2, 2L18-7

Injector Alarm Limits Set

The OPS DRVHs for the following cavities have been updated: 2L17-5

2L17-5 on at 3.0 but minor increasing in GSET cause huge TDETA jumps

The following cavity histories have been updated: 2L18-7

COMMENT ON: get 0L04 gradient calibration data

Shift Information

Access Status

Recent PSS History

Contact Info

Additional Info

Error message

Aggregator

Shift Information

Access Status

Recent PSS History