Aggregator

Log Number: 4546958Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Wednesday September 09 through 18:00 Thursday September 10 AES DC power Systems 20 Amp Trim System Preventative Maintenance 2026

2026-09-10 17:09 - Jason Delk

Log Number: 4546954Logbook(s): 

• ELOG

Body: 

PM's have been completed for the Injector building and NA01B08. Work has begun on rack NA01B12.

Yoon, Chaudhary, Delk

Log Number: 4546948Logbook(s): 

• ELOG

Body: 

Non-powered PM work was completed for 10 Amp trim rack E201B12

chumphry

Log Number: 4546942Logbook(s): 

• ELOG

Body: 

Began CPS teardown and prep for transformer removal.

Log Number: 4546941Logbook(s): 

• ELOG
• POLOG

Body: 

Cleanroom attached to legs successfully, getting wiped down for gun electrode swap. Still on schedule to do vacuum work Monday unless something unexpected comes up.

Log Number: 4546940Logbook(s): 

• ELOG

Body: 

All four u-tubes have been removed from NL25 & 26.
L-tubes are installed in the transfer line primary return bayonets and RT valves are closed and cabled.

Log Number: 4546938Logbook(s): 

• ELOG

Body: 

1L07 - Preparing to install cleanrooms upstream and downstream of 1L07, contacted I&C to remove BPM connections. Will finish set-ups tomorrow. Pushed cleanrooms down to 1L10 and 1L26 for set-ups later.

Log Number: 4546937Logbook(s): 

• ELOG
• INCLOG

Body: 

After some troubleshooting was able to make sure readbacks and interlock/coms/power cables was operating as intended.
Will continue investigating possible short at E3-E5: https://tasklists.jlab.org/atlis/tasks/121068, since this upgrade is near completion.

Log Number: 4546936Logbook(s): 

• ELOG

Body: 

Correction. 1L26 for the duration.

Log Number: 4546935Logbook(s): 

• ELOG

Body: 

1L26. Installed beamline turbo pump @VIP1L26B. VBV1L25B & VBV1L26A forced open using local valve box. Actively pumping on 1L25 & 12L26 for the duration of 300k warm up.

Log Number: 4546934Logbook(s): 

• ELOG

Body: 

Moved all the plasma equipment from the Test Lab to the NL Access Building this morning. Some of the equipment was then moved to the North Access Stub using the freight elevator, but the elevator suddenly stopped moving upward.

The four RF racks and the gas cart are still staged in the NL Access Building.

Log Number: 4546931Logbook(s): 

• CLOG
• ELOG

Entry Makers: brianmBody: 

All four u-tubes have been removed from NL25 & 26.
L-tubes are installed in the transfer line primary return bayonets and RT valves are closed and cabled.

Log Number: 4546929Logbook(s): 

• ELOG
• INCLOG

Body: 

Replaced viewer cameras for ITV5R01 and ITV3R01

Log Number: 4546925Logbook(s): 

• ELOG
• INCLOG

Body: 

RF cables disconnected from BPM can for clean room installation.

Log Number: 4546922Logbook(s): 

• ELOG

Body: 

10th Sept. work:
- Hall A MOLLER Region 3 weldment inspection.

11th Sept. work map:
- Hall D Start Counter as-found

Log Number: 4546921Logbook(s): 

• POLOG
• ELOG

Entry Makers: marcyBody: 

Extractor gauge vs. time so far
9-4 14:22 3.66e-9
9-4 16:48 2.73e-10
9-8 16:10 2.16e-11
9/9 8:55 2.06e-11
9/10 13:50 1.82e-11

Run degas cycle to minimize contributions due to the gauge outgassing: Ion pump responds as expected (Fig 1)

RGA warmed up in prep chamber, ready for gun leak check once valve between HV and prep chambers is opened

Log Number: 4546920Logbook(s): 

• UITFLOG
• ELOG

Entry Makers: poelkerBody: 

Can't open radiation monitoring screen. It was open for awhile, but after closing it, I could not open it again. I can't show you the screen because it won't open....

this is the screen owned by RadCon. The gieger mueller screen opens up

Log Number: 4546918Logbook(s): 

• ELOG
• INCLOG

Entry Makers: delacruzBody: 

Signal input: 1497 MHz @ -55 dbm

Wire sums are balanced with a manual signal injection.

Log Number: 4546916Logbook(s): 

• ELOG

Body: 

All five PTWs verified on-issue, all five expire after CY26 (i.e. after 1/1/27), and plasma processing is planned to occur before then. If this changes, will need to re-confirm PTWs are all each still on-issue.

There are no plans to warm-up any modules in the SL at this time, meaning no opportunity to plasma process these modules. SAM26 plasma processing will be limited to NL.

1L07 and 1L09 are identified as definitely processing. Only other potential candidates I can think of, based on warm-up plans, are 1L10 and 1L25.

If any of the above changes, will comment on this ATLis.

Log Number: 4546912Logbook(s): 

• UITFLOG
• ELOG

Entry Makers: poelkerBody: 

itfl04 terminal 'does not work'. Yan cannot open some screens. Maybe similar issue as itfl01 and 02?

THere's no label on the terminal but it is the fourth in the series....right most terminal