Aggregator

Log Number: 4542580Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the South Linac fudge factor from 1.004 to 1.006.

Log Number: 4542579Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: CryoModule
User: lrichard
Areas: SouthLinac

CryoModule Devices:
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4542578Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

Area.Linacs.South

Total Time: 3.150 mins

Log Number: 4542575Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was successfully run for the South Linac on 2026-08-13 15:29:48. The application phase took 00:01:46 to complete.

Log Number: 4542572Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17662Title:
2L11-7 Low KCCU

Summary:
Upon restoring RF to 2L11, cavity 7 Klystron arced. KCCU went low, RF group increased Fil Voltage by 0.5V.

Log Number: 4542570Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been GSET 0:
2L11-7
Username: alexs
Date/Time: 08-13-26_15:27:18
RF Status: Good
Tuner Status: Good
Comment: GSET 0 - stepped off +100k - Klystron arced. Can be recovered once KCCU is back
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4542569Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17661Title:
2L11 dropped HV and Filaments for Cavity 5 Watchdog Fault

Summary:
2L11 dropped HV and Filaments for Cavity 5 Watchdog Fault. Attempted RFCM reboot failed. Paged RF On-call. RFCM swapped. Zone brought back up to HV and RF recovered.

Log Number: 4542568Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L11-5
Username: kerns
Date/Time: 08-13-26_15:18:03
RF Status: Good
Tuner Status: Good
Comment: RFCM replaced for loss of comm-Watchdog/GMES faults. Optimized at 8.1 Mv/m.
Special Instructions:

Maintenance Tag: Component: RFCM {Removed SN: 308, Replacement SN: 151}

Log Number: 4542564Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW beam to xBCD.

Log Number: 4542563Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 2 6 0

Log Number: 4542560Logbook(s): 

• BTLOG
• ELOG
• SLOG

Body: 

Inital testing on 2026-08-13 revealed errors that will be debugged offline:

https://logbooks.jlab.org/entry/4542558

Log Number: 4542558Logbook(s): 

• BTLOG
• ELOG
• SLOG

Entry Makers: dturnerBody: 

Inital testing revealed errors that will be debugged offline.
It seemed to connect to the lock zones fine, but then it could not connect to the PSET or GSET signals (Fig 4).

Established Tune Beam to 1R
Fig 1: Crested 1L02 in ITV1S01, along with zone gang phase and NL gang phase
Fig 2: Took each 1L02 cavity off crest by +/- 5 degrees
Fig 3: krest template we're using for testing on 1L02.
Fig 4: Error message - failed to connect.

Log Number: 4542554Logbook(s): 

• ELOG
• RFLOG

Body: COMMENTS: RFCM replaced for loss of comm. Watchdog/GMES faults.


The following module files were successfully downloaded
sl115e sl115d

Log Number: 4542549Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: CryoModule
User: lrichard
Areas: SouthLinac

CryoModule Devices:
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4542543Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

Attempted RFCM reboot failed, paging RF. Ops going to look locally.

Log Number: 4542540Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17661Title:
2L11 dropped HV and Filaments for Cavity 5 Watchdog Fault

Summary:
2L11 dropped HV and Filaments for Cavity 5 Watchdog Fault. Attempted RFCM reboot failed.

Log Number: 4542538Logbook(s): 

• ELOG
• RFLOG

Entry Makers: alexsBody: 

Investigating now

Log Number: 4542512Logbook(s): 

• ELOG
• BTLOG

Body: username = dturner, hostname = opsl06, CSUE version = 1-25
login_key = pro, workspace = OPS

Data collection parameters:
corrector2 = MAT0R09V
sddsmonitor_interval = 1.0
data_dir = /cs/prohome/apps/r/rayTrace_12GeV/1-25/fileio/data/2026-08-13_13:18:08_MBT0R08V_IDA1R02_Y
beta = 3.225553819556068
end_pass = 1
corr2_s = 103.746888036137
name = ILD_to_1R_y
master_mode_readback_pv = IGL1I00BEAMODE.RVAL
master_mode_setpoint_pv = IGL1I00BEAMODE.VAL

Log Number: 4542505Logbook(s): 

• ELOG
• RADLOG

Entry Makers: bbarkerBody: 

Log Number: 4542499Logbook(s): 

• ELOG
• BTLOG

Body: username = dturner, hostname = opsl06, CSUE version = 1-25
login_key = pro, workspace = OPS

Data collection parameters:
corrector2 = MAT0R09V
sddsmonitor_interval = 1.0
data_dir = /cs/prohome/apps/r/rayTrace_12GeV/1-25/fileio/data/2026-08-13_13:09:27_MBT0R08V_IDA1R02_Y
beta = 3.225553819556068
end_pass = 1
corr2_s = 103.746888036137
name = ILD_to_1R_y
master_mode_readback_pv = IGL1I00BEAMODE.RVAL
master_mode_setpoint_pv = IGL1I00BEAMODE.VAL