Aggregator

Log Number: 4547657Logbook(s): 

• CLOG
• ELOG

Entry Makers: moserBody: 

Appears that during CHL u-tube operations today when 4K flow was off to NL 0L04 (sometimes called 0L05) liquid He boiled off. Insulating vacuum expectedly rose from ~5e-3 to 3e-1 torr.

Around 1400, IV got much better, dropping back to e-3 range.

Cryo-diodes on 0L04 track w/IV pressure -- began rising around 11AM as liquid level in the zone dropped to nearly zero. Around 1400, diode temperatures plummetted from as high as 85K back to <20K.

All appears fine vacuum-wise now -- insulating vacuum re-established, module cooled back down, now slowly accumulating liquid.

Log Number: 4547656Logbook(s): 

• ELOG

Body: 

Installed software jumper JR#26-003
Laser bypass operation verified.

Log Number: 4547655Logbook(s): 

• ELOG

Body: 

Nothing left to do with this task, we will create a new ATLis and PTW for reconnecting the magnet leads when girders have been reinstalled.

Log Number: 4547654Logbook(s): 

• ELOG

Body: 

Given recent update, anything left to do under this task?

Log Number: 4547649Logbook(s): 

• ELOG
• SLOG

Tags: 

• MCC8am
• Software and Controls

Body: 

ACE Team Successfully Performed Linux Patching
Completed alarm guidance audit. Passed onto Operations for Review.

Log Number: 4547648Logbook(s): 

• ELOG
• DCLOG

Body: 

Working under PTW - 11789. Preventive maintenance has been completed for BSY1C. BSY1C has been connected to the resistive load for testing; DCCT and controls still need to be connected to the power supply. Testing of the supply on the resistive load will happen tomorrow.

-O'Brien

Log Number: 4547644Logbook(s): 

• ELOG

Body: 

I&C will be doing this work. Please comment with relevant ePAS documentation and on anticipated timing beforehand. Otherwise, this task is approved. Timing TBD.

Log Number: 4547643Logbook(s): 

• ELOG

Body: 

Non-powered PM work was completed for 10 Amp trim rack E401B12,E501B11,E501B12 and E501B13
chumphry,richardson

Log Number: 4547641Logbook(s): 

• ELOG
• INCLOG

Entry Makers: dsjamesBody: 

Powered off CAMAC crates in E2, E3, E4, E5. Prior to planned power outage in East Arc on 9/16/2026.

Log Number: 4547638Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-09-15 15:32:14 The output from the myRestore execution was as follows: iocsoftw4spce systemEnum@2026-09-15 15:32 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftw4spce (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: 4547637Logbook(s): 

• ELOG

Body: 

PM's have been completed for NA01B11 and NA01B12 racks and supplies. Tunnel magnet connection inspections remain for the North Access powered magnets. Rack PM's have started in zone NL01.

Chaudhary, Yoon, Janak, Delk

Log Number: 4547636Logbook(s): 

• ELOG
• POLOG

Body: 

Summary: Electrode is misaligned to flange, needs to be adjusted in our lab space. Vacuum work to remove it planned for Thursday, then more vacuum work next week when we reinstall, date TBD.

Log Number: 4547632Logbook(s): 

• ELOG

Body: 

1L07. Continue setting up for valve and ion pump installation.
1L09. Connected beamline pump at VIP1L10B in preparation for 1L09 & 1L10 warmups.
1L25. Isolated insulating vacuum Twistorr turbo pump. Spoiled insulating vacuum with N2

Log Number: 4547630Logbook(s): 

• ELOG

Body: 

Lockout NL09B10 Trim Rack, then disconnect magnets MQB1L08, MDB1L08H, MQS1L08, MQB1L09, MST1L09, and MAT1L09V
tape up the lead connectors and place a magnet de-energized sign on the leads and at the terminal strip.

Diggs, Richardson

Log Number: 4547628Logbook(s): 

• ELOG

Body: 

Installation of the buzzer and modified crash-button shroud has been completed for the BSY Access Doors 1.

Log Number: 4547627Logbook(s): 

• ELOG

Body: 

15th Sept. work:
- Injector R30_6 Electrode alignment;
- Hall A MOLLER TM0 probes fiducialization

16th Sept. work map:
- (test lab) continue Hall A MOLLER TM0 probes fiducialization

Log Number: 4547626Logbook(s): 

• ELOG

Body: 

Makes sense to relocate to a known region of elevated activity. This should assist ops with steering/troubleshooting in the region.

Log Number: 4547625Logbook(s): 

• ELOG

Body: 

previous comment was mistakenly entered here instead of PSS general maintenance (121204)

Log Number: 4547624Logbook(s): 

• ELOG

Body: 

RF interface chassis for zone 8 removed and cables relocated from rack 12 to rack 14 to facilitate zone upgrade. will be reinstalled in rack 14 at a later date. we have stored the interface chassis inside of the B system rack in zone 12 (pss lockable rack)

Log Number: 4547622Logbook(s): 

• ELOG
• INCLOG

Entry Makers: mmuellerdsjamesBody: 

James Donaldson and I removed the Camac crate in NL08B12