Aggregator

Log Number: 4546006Logbook(s): 

• ELOG

Body: 

Task complete ~3:30 pm

Log Number: 4546002Logbook(s): 

• ELOG
• POLOG

Body: 

The IA test in CEBAF Laser room is planned on Thursday 1:30 - 4:00 pm.

Log Number: 4546001Logbook(s): 

• POLOG
• ELOG

Body: 

Today we mostly prepared for the ISB outage and focused on laser room jobs

Log Number: 4546000Logbook(s): 

• ELOG

Body: 

All (4) Injector Trim Racks have been locked out and PM as begun on the Trim Racks. All non-power PM work.

Chaudhary, Janak, Yoon, Diggs

Log Number: 4545999Logbook(s): 

• ELOG

Entry Makers: eformanBody: 

Log Number: 4545998Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Forman
DATE:             09/01/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4545997Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4545992Logbook(s): 

• ELOG

Body: 

I reviewed all documentation and signed onto the ePAS.
Per Claire's email to me, we can use the IA communication as configured for this test.
Today (1 September) Riad will escort me to the laser room so that I can inspect the IA Xport network connection & MAC address, and we can look at the IA crystal connections and decide how to modify them to be compatible with the new IA driver.

Log Number: 4545991Logbook(s): 

• ELOG
• INCLOG

Body: 

Completed firmware upgrade for the following in E2:
VIPBS01, BS03A, BS04, BS04A, BS04B, BE01, BE04, BE04A, BT01, BT03, 5C00, 5C00A and VIP5C00B.
All supplies in E2 building now have firmware version 1.18.03 and are showing good readbacks.

Log Number: 4545990Logbook(s): 

• ELOG
• POLOG

Body: 

added link to Eric Diggs' atlis for magnet disconnects

Log Number: 4545989Logbook(s): 

• POLOG
• ELOG

Entry Makers: brukershukuiBody: 

Documenting laser retroreflection with normal photocathode still in the gun (will repeat with mirror puck later this week).

Based on recent QE scan (full-area activation), photocathode center should be at 12500 / 18000-ish.
Measuring how to center the primary laser beam in the viewer hole:
Figure 1: 14000 / 22000 -- primary beam scraping at top edge of hole (green rectangle = hole, bright spot = primary laser, faint spot = retroreflection)
Figure 2: 14000 / 14500 -- primary beam scraping at bottom edge
Figure 3: 11000 / 18250 -- primary beam scraping at electron-beam-right edge
Figure 4: 1650

Log Number: 4545988Logbook(s): 

• ELOG

Body: 

Removed old circulators 4-8 and installed 2 of the new 8 kW circulators. Work is proceeding steadily and without issue.

Log Number: 4545986Logbook(s): 

• ELOG

Body: 

1st Sept:
- Hall D MCOAD02 as-found;
- Hall D High-Low granularity detector as-found;
- Hall A MOLLER QQQ girder fiducialization.

2nd Sept:
- Hall D Target as-found.

Log Number: 4545985Logbook(s): 

• ELOG

Body: 

Kaeser working this task today 1:45-3:30pm.

Log Number: 4545983Logbook(s): 

• ELOG

Body: 

Pre- job brief complete.
Task approved by work supervisor

Log Number: 4545981Logbook(s): 

• ELOG

Body: 

LOTO was completed today on ARC's 1, 3, 5, 7, 9, RSEP9 box supplies, and XSEP2T, 4T, 6T, 8T, AT box supplies.

IC's 17295 and 17296 are On Issue.

Work will continue on Wednesday with the remaining power supplies in the BSYSB.

Banks, O'Brien, Delk

Log Number: 4545978Logbook(s): 

• ELOG
• POLOG

Body: 

Tony removed BPM cables: see elog https://logbooks.jlab.org/entry/4545924
PTW 1650 for laser room will be followed when locking laser shutter to eliminate laser hazards prior to starting vacuum work covered in PTW 11519

Log Number: 4545973Logbook(s): 

• ELOG

Body: 

How about 9/9 or later in the SAM? 9/24 we have a proposed outage for the affected S. Linac bldgs. 56, 68, 70, & 82. (See F&O whiteboard?

Log Number: 4545970Logbook(s): 

• ELOG
• INCLOG

Body: 

Will upgrade firmware for supplies located at E2 today. These are for Hall D transport before the Tagger.

Log Number: 4545969Logbook(s): 

• ELOG
• INCLOG

Body: 

Verified cable for VBV3A19 interlock from E3 to E5 doesn't have a short.
Will continue tomorrow checking the cable for VBV7A19.