Aggregator

Log Number: 4547669Logbook(s): 

• ELOG

Body: 

Part 1 of 2 days of CHL u-tube reconfiguration was completed. The goal is to isolate the CHL2 2K Cold Box to permit warm-up for SAM activities.

Log Number: 4547668Logbook(s): 

• CLOG
• ELOG

Log Number: 4547666Logbook(s): 

• MOLLER
• ELOG

Tags: 

• Moller
• PD

Entry Makers: jonesgaskelldwineskashydougberdnikciprianBody: 

Hall A techs work on building cable trays. Hall A techs work on shaving shielding blocks. Hall A techs installed cable tray support.

Log Number: 4547665Logbook(s): 

• ELOG

Body: 

Testing did not yield desired results - task remains open.

Log Number: 4547660Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Monday September 14 through 18:00 Tuesday September 15 AES DC power Systems Disconnect Magnets on Girder 1L08 and 1L09

2026-09-15 16:09 - Eric Diggs

Log Number: 4547659Logbook(s): 

• POLOG
• ELOG

Body: 

Today's summary...

1. The cathode face is mis-aligned a couple degrees outside of the tolerance of the slotted vacuum flange. Electrode will be removed on Thursday back to LERF Lab3a and reset to to be within +/- 1 deg tolerance of flange. Many thanks to S&A for the continued support.

2. The old cathode assembly (S/N R30-4) is tagged and ready for survey, we'd like to remove it on Wed to be able to free up its transport chamber.

Log Number: 4547658Logbook(s): 

• ELOG

Body: 

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