Aggregator

Log Number: 4462791Logbook(s): 

• ELOG

Body: 

Log Number: 4462790Logbook(s): 

• ELOG

Body: 

Initial HCO walk thru. performed by Neil Wilson of the OI & OL region LCW valve alignment. All are in the correct position.
No ePAS is required as this is purely a visual inspection to ensure the valves are in the correct configuration.

Log Number: 4462789Logbook(s): 

• ELOG

Body: 

Happening Friday 12/5 for removal from linac. Following week for removal from tunnel.

Log Number: 4462788Logbook(s): 

• ELOG

Body: 

E2 and E4 trim rack work -- main contactor and blower replacements -- good to go for next week, 12/8-12, once the PTW on-issue. Added to SAM Cal.

Log Number: 4462787Logbook(s): 

• ELOG

Body: 

This work has been expanded to E2 and E4. Associated PTW has been modified and submitted for approval. We would like to perform this work next week.

Log Number: 4462786Logbook(s): 

• ELOG

Body: 

Document_251204_074729.pdf will be the affected-on Monday 12/8/25 starting at ~7am. (See attachment)

Log Number: 4462784Logbook(s): 

• POLOG
• ELOG

Entry Makers: brukerBody: 

Homed x/y stage as well as all four attenuator steppers. All of them had lost their reference position due to the power outage, causing the TMG tool to get stuck trying to move the motors past the limit switches.

However, homing the attenuators seems to have incorrectly reproduced the previous reference position at least in the case of D, which now has its minimum power at position 310. The others look reasonable: A 75, B 110, C 85. I tried homing D again and got the same result. This will need to be looked at but doesn't preclude the use of the TMG tool with the present configuration.

Log Number: 4462783Logbook(s): 

• ELOG

Body: 

Log Number: 4462781Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2025-12-04 08:48:37 The output from the myRestore execution was as follows: iocea6 Execute: /cs/opshome/scripts/60_second_wait.sh (success) Please wait 60 seconds for restore... Pause: 60 second(s) Execute: /cs/opshome/scripts/scan_gain_set.sh (success) Old : IPMBSCN Normal New : IPMBSCN Calib Old : IPMBSCN Calib New : IPMBSCN Normal Old : IPMBGMD Auto New : IPMBGMD

Log Number: 4462780Logbook(s): 

• ELOG

Body: 

To clarify, these are commissioning activities in preparation for the upcoming PSS Certification.

Log Number: 4462778Logbook(s): 

• CLOG
• ELOG
• RFLOG

Entry Makers: wisslerBody: 

2L25 set to fill to 90% per SRF's direction. SRF will monitor the insulating vacuum as it fills in attempt to identify the leak.

Log Number: 4462776Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  PD SUMMARY

INJ:

- CIS: recovered from power outage

- HCO work continues

Log Number: 4462775Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2025-12-04 07:42:00 The output from the myRestore execution was as follows: iochelgen systemEnum@2025-12-04 07:42 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iochelgen (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure return status: Success

Log Number: 4462773Logbook(s): 

• ELOG

Body: 

SSG will perform CEBAF PSS tests in preparation for the upcoming system certification.
Tests planned for the swing shift on Thursday December 4th cover Halls B and C, BSY and South Linac. It's possible other segments might be swept as well.
Work will start around 3 PM with individual segments swept one at a time.

Log Number: 4462771Logbook(s): 

• ELOG

Body: 

Once the ePASs are added here and on-issue, and with concurrence from the Hall B Work Coordinator, this task is approved.

Log Number: 4462770Logbook(s): 

• ELOG

Body: 

Log Number: 4462768Logbook(s): 

• ELOG

Body: 

Details along with ePAS docs will be updated and posted through out the day.

Log Number: 4462767Logbook(s): 

• ELOG

Body: 

Updated Schedule
12/8 – 94-MDP-TB – Hall B Truck Ramp

12/9 – 92-SBB1 – B92 and B91

12/10-12/11 – 92-BCPH1 – Hall B Clean Power

12/12 – 92-SWBD-ESB – Hall B Utility Power (Meter install by subcontractor as well)

Log Number: 4462765Logbook(s): 

• ELOG

Body: 

TAB activities continue Thursday.

Log Number: 4462761Logbook(s): 

• ELOG

Entry Makers: shukuiBody: 

I planned to do a laser HCO this afternoon once the power outage was over. However the laser RF was not available due to an issue with the 1427 MHz amplifier. I turned lasers back on after was told the RF was ready but the RF frequency was not recovered from previous setting at 250MHz, so did a manual reset. Then did a partial HCO by checking the laser power and waveforms at different laser modes.