Aggregator

Log Number: 4544037Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: bschauml 08-20-26 17:11:13 {A:i B:1 C:5 E:1060 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in.

Log Number: 4544013Logbook(s): 

• POLOG
• ELOG

Entry Makers: bschaumlBody: 

I encountered a bug with Hall D nominal current reporting -2492 nA which appears to be a result of the background being measured as 2.724 uA. Looking at the LivePlot I had running during the background measurement preceding the Hall D nominal current measurement, it doesn't appear that the Faraday cup was actually measuring anywhere near what the script reports. I suspect it may be measuring 0.002724 uA and erroneously multiplying this by a factor of 1000, perhaps due to the new update for reporting the nominal current measurements for low current halls in nA.

Log Number: 4544001Logbook(s): 

• POLOG
• ELOG

Body: 

This is a full photocathode area activation with no mask.

Log Number: 4544000Logbook(s): 

• ELOG
• POLOG

Body: 

Log Number: 4543997Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Wednesday August 19 through 18:00 Thursday August 20 AES Safety Systems Admin LOTO Evaluation

2026-08-20 13:08 - Jerry Kowal

Uploaded: PSS Certif

Log Number: 4543996Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

SME had to skedaddle, but an ATLis comment was promised to land in a few hours. Channel access for iocsl4 revoked.

Log Number: 4543995Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Rapid access beacon successfully checked for functionality and the LERF is in controlled access for the night.

Log Number: 4543994Logbook(s): 

• ELOG
• LERFLOG

Tags: 

• ShiftSummary

Body:  LERF SHIFT LOG Summary

Start of shift: LERF to Power Permit.

Log Number: 4543993Logbook(s): 

• ELOG
• POLOG

Body: Comments: Testing Most Recent Update
Nominal Settings (current background subtracted) Hall A (uA)Hall B (nA)Hall C (uA)Hall D (nA)

Log Number: 4543992Logbook(s): 

• ELOG
• POLOG

Body: Comments: Testing Most Recent Update
Nominal Settings (current background subtracted) Hall A (uA)Hall B (nA)Hall C (uA)Hall D (nA)

Log Number: 4543991Logbook(s): 

• ELOG
• POLOG

Body: Comments: Testing Most Recent Update
Nominal Settings (current background subtracted) Hall A (uA)Hall B (nA)Hall C (uA)Hall D (nA)

Log Number: 4543987Logbook(s): 

• ELOG
• POLOG

Body: Comments: Testing Most Recent Update
Nominal Settings (current background subtracted) Hall A (uA)Hall B (nA)Hall C (uA)Hall D (nA)

Log Number: 4543986Logbook(s): 

• ELOG
• POLOG

Body: Comments: Testing Most Recent Update
Nominal Settings (current background subtracted) Hall A (uA)Hall B (nA)Hall C (uA)Hall D (nA)

Log Number: 4543984Logbook(s): 

• ELOG
• POLOG

Body: Comments: Testing Most Recent Update
Nominal Settings (current background subtracted) Hall A (uA)Hall B (nA)Hall C (uA)Hall D (nA)

Log Number: 4543985Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Injector is in Beam Permit. North Linac, South Linac, and BSY are in Power Permit. Halls B, C, D, and D Tagger are in Restricted Access. ATLis 121132 (https://tasklists.jlab.org/atlis/tasks/121132) is underway in the South Linac. SWList 120485 (https://tasklists.jlab.org/swlist/tasks/120485) is underway in the Injector.

At the request of DC Power all 10 A trims beyond 1D have been set to zero current, and all 20 A trims have been set to zero current and turned off.

LERF is in Power Permit, likely for the duration of the shift.

Log Number: 4543982Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Log Number: 4543979Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Log Number: 4543969Logbook(s): 

• DCLOG
• ELOG

Entry Makers: bschaumlBody: 

At the request of DC Power, via Director of Operations, I zeroed the current for all 10 A trims apart from those required for running to the 1D dump and turned off the supplies for all 20 A trims. All rack supplies were left on, per request.

Fig 1-6: Trim Rack Summary as found, when all trims outside the injector were zeroed, and after all downstream of 0I06A were zeroed, interleaved with the configuration for the Global Trim Control script at each step.
Fig. 7-9: Racks with trims required for running to 1D.

Log Number: 4543960Logbook(s): 

• ELOG
• LERFLOG

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

Date : 08-20-26
Time : 16:08:30
Day : Thursday
Shift : Swing

Crew Chief : Price
Program Deputy: Park
Team : D
Arm : RadCon
LERF Operator:
Operators : Swing SSO Schaumloffel, Owl SSO Christian

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

Log Number: 4543957Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: bschauml 08-20-26 16:07:30 {A:i B:1 C:5 E:1060 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in.