Aggregator
COMMENT ON 20 Amp Trim System Preventative Maintenance 2026
COMMENT ON Power Down and Start PM for 10 Amp Trim System Fall SAD 2026
COMMENT ON Upgrade 1L08 to a C75 zone.
COMMENT ON Replace gun HV electrode
Cryogenics Work Update
COMMENT ON Vacuum Activities CEBAF 9/09/2026 through 12/31/26 (SAM26)
COMMENT ON E3 Convectron Controls Upgrade (2026 SAM)
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.
COMMENT ON Vacuum Activities CEBAF 9/09/2026 through 12/31/26 (SAM26)
COMMENT ON Vacuum Activities CEBAF 9/09/2026 through 12/31/26 (SAM26)
COMMENT ON Plasma processing during the Fall 2026 SAM
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.
North Linac u-tubes
COMMENT ON Viewer SAM Maintenance 2026
IPM1L07 - cables disconnected
Survey and Alignment work summary
gun electrode work: extractor data so far
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
can't open the radiation monitoring screen
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
IPMAS01 - signal injection
APPROVED Plasma processing during the Fall 2026 SAM
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.










