Aggregator

Log Number: 4514025Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been bypassed:
2L04-7
Username: jhoward
Date/Time: 06-20-26_02:05:56
RF Status: Bad
Tuner Status: Good
Comment: Bypassed - stepped off +100k - Filaments Volts Low
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4514024Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17226Title:
2L04 drop HV cav 7 Filament Volt Low, bypass cavity

Summary:
bypassing cav 7 from Fil Volt Low dropping zone HVDuration:
2 minutes

Time Down:
20-Jun-2026 02:01

Log Number: 4514023Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

Tried pushing the fault clear, but no luck.

Log Number: 4514022Logbook(s): 

• ELOG

Entry Makers: victorc

Log Number: 4514020Logbook(s): 

• ELOG

Entry Makers: victorc

Log Number: 4514017Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17225Title:
1L13 HV drop

Summary:
Attempt to turn HV back on to no avail.

Log Number: 4514016Logbook(s): 

• SRFLOG
• ELOG
• RFLOG

Entry Makers: dchriBody: 

sending Ops out to service building take a look. HV not coming back on

Log Number: 4514015Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

The orbit lock PVs for Arc 6 and above are not changing. It seems like just the ArcXOrb:Onoff PV, but I have not done an extensive investigation. The Hall orbits locks are also not updating. We have been turning them on, and the locks themselves are running correctly, only the PVs seem to be having an issue.

Log Number: 4513999Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

iocse15 appears to be unresolved in the alarm handler, but all signals on this ioc are reporting just fine. Maybe the alarm handler needs a reboot?

Log Number: 4513993Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Last night we found current stability is better with a wider slit, and it's easier on the gun. No detriment to halo rates at this setting.

Log Number: 4513992Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: victorc 06-20-26 00:14:44 {A:i B:1 C:3 E:1060 A=BS B=CW C=CW D=BS 0R08=48.03 No dumps in.

Log Number: 4513991Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             06/19/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4513990Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Howard
DATE:             06/19/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4513987Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Christian
DATE:             06/19/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4513984Logbook(s): 

• ELOG
• RFLOG

Entry Makers: dturnerBody: smartRAT V3-4 on opsrfdaqnl1

To view waveforms from a timestamp:

ssh opsrfdaqnl1 "smartRAT -m DAQ -d /data/fast_daq/<timestamp>"


To view waveforms of the top 25 from this report:

ssh opsrfdaqnl1 "smartRAT_view_daily_top25 2026-06-12-2026-06-19"


Data directory: /cs/prohome/apps/s/smartRAT2/3-4/fileio/pca_data/output_cavityOutDet/calibrated_cavitylevel_centralize_tsfresh_minimal_gmespmes/whole/rcntnp/2026-06-12-2026-06-19/PCA/

Log Number: 4513975Logbook(s): 

• ELOG
• LERFLOG

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

Date : 06-19-26
Time : 23:17:52
Day : Friday
Shift : Owl

Crew Chief : Price
Program Deputy: Nissen
Team : D
Arm : Chaudhary
Designated SSO: Christian
LERF Operator:
Operators : Howard, Chaudhary, Christian

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

Log Number: 4513970Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW to halls B & C.

Log Number: 4513971Logbook(s): 

• DCLOG
• ELOG

Entry Makers: msmithBody: 

Trim card reseated. Took setpoint and cycled.

Log Number: 4513968Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 8 0 0

Log Number: 4513963Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17224Title:
MQB1L27 mismatch

Summary:
Quad mismatch.