Aggregator

Log Number: 4528919Logbook(s): 

• ELOG

Body: 

The small FLIR unit has a only low resolution thermal sensor, not that of an optical sensor.
The images posted are all one gets - they aren't thumbnails.
Labels Have been added.

During the scan, no major outliers were found

Click on the image to enlarge if labels are difficult to see

Log Number: 4528912Logbook(s): 

• ELOG
• RFLOG

Entry Makers: victorcBody: Cavity tripped FSD three times in a row. P1 faults. Not sure the exact issue. Tried an OLT and it hasn't tripped since.

Log Number: 4528910Logbook(s): 

• HCLOG
• ELOG

Entry Makers: victorcBody: 

Steered closer to zero, as well as balanced the xC dipole to energy. xC FFB reengaged without problem.

Log Number: 4528902Logbook(s): 

• HDLOG
• ELOG

Entry Makers: dchriBody: 

Log Number: 4528891Logbook(s): 

• BTLOG
• ELOG

Entry Makers: kpriceBody: 

Comparing FOpts a little under a day apart, it looks like large differences in dispersion surface between C and D lasers. Differences start as early as 1L, becoming significant by 2S -> 2A. We don't have a good comparison of FOpts between C and D since the C pass change so differences are a bit difficult to track down. Either way, vertical dispersion is well out of spec by 2R.

Log Number: 4528885Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Christian
DATE:             07/22/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4528883Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

Working on finding what is causing the issue, it may be coming from early on in the machine. Loss on IDX is different than it was yesterday. At the moment we will try to find the cause of the loss rather than do another BLA cal.

Log Number: 4528872Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Price
DATE:             07/22/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4528871Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             07/22/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4528862Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17487Title:
Hall C Configuration Change

Summary:
Hall is changing configurationDuration:
36 minutes

Time Down:
21-Jul-2026 23:00

Time Up:
21-Jul-2026 23:36

Log Number: 4528858Logbook(s): 

• ELOG
• RFLOG

Entry Makers: dturnerBody: smartRAT Vpro 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 2026-07-14-2026-07-21"


Data directory: /cs/prohome/apps/s/smartRAT2/pro/fileio/pca_data/output_cavityOutDet/calibrated_cavitylevel_centralize_tsfresh_minimal_gmespmes/whole/rcntnp/2026-07-14-2026-07-21/PCA/

Log Number: 4528852Logbook(s): 

• HCLOG
• ELOG

Entry Makers: bschaumlBody: 

Log Number: 4528850Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: Loop 2 10cmPass: 4Note: Calibrated On:2026-Jul-16 03:55Calibrated By: msmithFile:C-2026-07-16_0355_Loop_2_10cm_Pass-4.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Compton3,287</

Log Number: 4528849Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4528847Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: jhoward 07-21-26 23:29:28 {A:i B:1 C:4 E:1060 A=BS B=BS C=BS D=BS 0R08=0.00 No dumps in.

Log Number: 4528846Logbook(s): 

• ELOG
• LERFLOG

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

Date : 07-21-26
Time : 23:28:20
Day : Tuesday
Shift : Owl

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

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

Log Number: 4528844Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Machine in Beam Permit; RF work on 0L04 and 1L22 in progress.

Log Number: 4528840Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 5 0 0

Log Number: 4528837Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17487Title:
Hall C Configuration Change

Summary:
Hall is changing configurationDuration:
10 minutes

Time Down:
21-Jul-2026 23:00

Time Up:

Log Number: 4528831Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD