Difference between revisions of "October 31, 2023"
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= Near Future Plan = | = Near Future Plan = | ||
| − | + | # Wednesday, November 2, during the beam study, the plan is the following: | |
| − | # Wednesday, November 2, during the beam study, 7:00 beam stops | + | |
| + | * 7:00 beam stops. Rotate SHMS to 38 degrees. | ||
| + | * 7:30 a.m.: sweep the hall open for the restricted access. | ||
| + | * Hall will enter restricted access at 8:00-8:15 a.m., | ||
| + | * No time limit on closing the hall. | ||
| − | *We will attempt the following maintenance items: | + | * We will attempt the following maintenance items: |
| − | ** | + | ** Moving NPS to XXX meters. |
| − | ** NPS students will remove | + | ** NPS students will remove XXX Columns of PMTs + bases. Hall tech support is needed for this part. |
** Two new bases with the low voltage regulator bypassed (verified) will be swapped into the NPS. | ** Two new bases with the low voltage regulator bypassed (verified) will be swapped into the NPS. | ||
| − | ** NPS shielding installation: large sheets of borated-polyethylene | + | ** NPS shielding installation: large sheets of borated-polyethylene will be transferred from Hall A to C by Hall C tech. |
| − | ** Replace the NPS radiation monitoring dosimeters. | + | ** Replace the NPS radiation monitoring dosimeters. (Mitch and others) |
| − | ** LED troubleshooting. | + | ** LED troubleshooting. (Mitch) |
** Heidi is looking into adding an additional bandit to ensure SHMS dipole stability. | ** Heidi is looking into adding an additional bandit to ensure SHMS dipole stability. | ||
** Chandan and Dave Mack will access and check the HMS hodoscope patch panel. to address this issue: https://logbooks.jlab.org/entry/4210267 | ** Chandan and Dave Mack will access and check the HMS hodoscope patch panel. to address this issue: https://logbooks.jlab.org/entry/4210267 | ||
| Line 65: | Line 69: | ||
** Virtual machine reboot request from the computing center (Hanjie is coordinating this part) | ** Virtual machine reboot request from the computing center (Hanjie is coordinating this part) | ||
** Bob will take another look at the scaler server. | ** Bob will take another look at the scaler server. | ||
| − | * Sometime in the future, we will invite Vald to give an insight into the high radiation test results. | + | ** Simona will place some test samples into the Hall (not NPS-related). |
| − | + | ||
| + | In the near term future: | ||
| + | # Sometime in the future, we will invite Vald to give an insight into the high radiation test results. | ||
| + | # We will perform a corrector coil beam steering test for the next angle setting with a non-zero corrector coil field. | ||
= Special Studies = | = Special Studies = | ||
Revision as of 09:09, 31 October 2023
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/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMXdsUT09#success Meeting ID: 161 701 5555 Passcode: 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
Past 24 hours
Mostly smooth production. Good 24 hours.
Issues:
- Flipping script procedure falling through the crack caused large charge asymmetry for two hours, Hall C RC didn't follow the procedure: https://logbooks.jlab.org/entry/4212928
- Suggestions for the future
- Adding the charge asymmetry to the Hall C alarm handler.
- Making the instruction clear for the future Hall C RC on the half-wave plate change. (This information must be passed on).
- Popcorn alarm: https://logbooks.jlab.org/entry/4212784
- Chiller average temperature: https://logbooks.jlab.org/entry/4212896
- DAQ issue in the morning thanks to Chandan, Raydo, and Wasim for resolving it: https://logbooks.jlab.org/files/2023/10/4212913/nps_hms_coin_2458_50k.pdf
The plan is to data taking till 7:00 am Wednesday.
RC Summary
Current Status
Near Future Plan
- Wednesday, November 2, during the beam study, the plan is the following:
- 7:00 beam stops. Rotate SHMS to 38 degrees.
- 7:30 a.m.: sweep the hall open for the restricted access.
- Hall will enter restricted access at 8:00-8:15 a.m.,
- No time limit on closing the hall.
- We will attempt the following maintenance items:
- Moving NPS to XXX meters.
- NPS students will remove XXX Columns of PMTs + bases. Hall tech support is needed for this part.
- Two new bases with the low voltage regulator bypassed (verified) will be swapped into the NPS.
- NPS shielding installation: large sheets of borated-polyethylene will be transferred from Hall A to C by Hall C tech.
- Replace the NPS radiation monitoring dosimeters. (Mitch and others)
- LED troubleshooting. (Mitch)
- Heidi is looking into adding an additional bandit to ensure SHMS dipole stability.
- Chandan and Dave Mack will access and check the HMS hodoscope patch panel. to address this issue: https://logbooks.jlab.org/entry/4210267
- Aaron will push a new code for the NPS chiller controller.
- Joe will guide a walk-through at 1 p.m.
- Virtual machine reboot request from the computing center (Hanjie is coordinating this part)
- Bob will take another look at the scaler server.
- Simona will place some test samples into the Hall (not NPS-related).
In the near term future:
- Sometime in the future, we will invite Vald to give an insight into the high radiation test results.
- We will perform a corrector coil beam steering test for the next angle setting with a non-zero corrector coil field.
Special Studies
- Peter found HMS Central Momentum mismatch/Correction: https://logbooks.jlab.org/entry/4210756
Planned Accesses to the Hall Today
Planned Accelerator Configuration Changes
- Pass change in Hall A on the 31st
