Difference between revisions of "December 18, 2022"
From HallCWiki
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= Current Status = | = Current Status = | ||
| − | * [https://logbooks.jlab.org/entry/4102994 | + | * [https://logbooks.jlab.org/entry/4102994 Hall C is currently down due to another PSS error] [https://logbooks.jlab.org/entry/4102973 that suddenly put Hall C in restricted access.] |
** Expert on-call unable to solve issue. | ** Expert on-call unable to solve issue. | ||
** Experts due to come in at 8:00 AM | ** Experts due to come in at 8:00 AM | ||
Revision as of 11:02, 18 December 2022
Contents
RC Meeting Information
RC Daily Meetings are at 11:00 (am) via Zoom and in person in the counting house meeting room (2nd floor)
- Zoom remote connection information:
Join ZoomGov Meeting https://jlab-org.zoomgov.com/j/1607100885?pwd=ZFBsRTFsYm5Zb0laZ0tyZXNjcEE0QT09 Meeting ID: 160 710 0885 Passcode: 595071 One tap mobile +16692545252,,1607100885# US (San Jose) +16468287666,,1607100885# US (New York) Dial by your location +1 669 254 5252 US (San Jose) +1 646 828 7666 US (New York) +1 669 216 1590 US (San Jose) +1 551 285 1373 US 833 568 8864 US Toll-free Meeting ID: 160 710 0885 Find your local number: https://jlab-org.zoomgov.com/u/ab2CekLXgQ
Useful Links
Current Status
- Hall C is currently down due to another PSS error that suddenly put Hall C in restricted access.
- Expert on-call unable to solve issue.
- Experts due to come in at 8:00 AM
- PD meeting scheduled for 9AM to discuss further
- Results of said meeting: hardware has been replaced and is being tested and hopefully will be back up before noon.
- Shift Summaries
- Today
- When beam comes back, continue with the run plan on Setting 2.
- Yesterday
- Changed to Setting 2 of HMS high x at 35 degrees at the start of swing shift.
- Smooth running until 1L21 cavity dropping at 00:20, followed by PSS error
- HCDESK 4 got bumped and logged out when we were messing with cables to get the TV screens back
- Logged back to redhat as cdaq user and restored vnc and scripts with no problem.
Current Run Plan
- Continue with Setting 2.
- Are there any changes that need to happen to the run plan due to beam being down all night?
Notices in Effect for Shift Crew
- Continue to fill out SHMS Excel Spreadsheet.
Current Issues
- Hall C in restricted access due to PSS Error.
- MCC investigating as to why the Energy Measurement failed so badly.
- Email from Jay Benesch: "Beam should be about 2 mm sigma in the horizontal due to peak
dispersion. Beam line 22 mm ID, centroid horizontal offset only 1 mm so ten sigma should have sufficed."
- Mentioned in meeting that they have changed the procedure to have 2uA tune beam when during certain parts of the measurement when possible (instead of 10uA).
- (Said quite a few things that I didn't understand about some technical things).
- We should continue to follow up with them to get the mystery solved before the next beam energy measurement.
- Mentioned in meeting that they have changed the procedure to have 2uA tune beam when during certain parts of the measurement when possible (instead of 10uA).
- What do we need to do for Monday?
- Warm up target.
- Power Down the magnets
- Turn off HVs
- Leave any on?
