Difference between revisions of "January 26, 2023"
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= Current Status = | = Current Status = | ||
| − | * Finished setting | + | * Finished setting 3 of high Q2 electron data taking in the HMS (-3.09 GeV and 35 deg). Completed swing 1/24/2023 |
| − | * | + | * Helium-3 remains for setting 4 of high Q2 electron data taking in the HMS (-2.72 GeV and 35 deg). |
| + | *: Carbon took 10 hours beam on time, 24 actual. | ||
| + | *: Helium-4 took 11.5 hours beam on time, 17 actual. | ||
| + | *: Aluminum stand-in took 4.5 hours beam on time, 6 actual. | ||
| + | *: Helium-3 Est to take 27 hrs beam on time, <TBD> actual. | ||
| + | *Target temperature spike for loop 1 AND loop 2: | ||
| + | *: https://logbooks.jlab.org/entry/4117272 | ||
| + | *; Loop 2 had a spike during production running, will need cut out | ||
| + | *: https://logbooks.jlab.org/entry/4117306 | ||
| + | **Greg looked into the spikes and found nothing of note. Suggested to continue as planned. | ||
| + | **: https://logbooks.jlab.org/entry/4117470 | ||
| + | ** Swing into owl target moved to loop 1, no issues. | ||
| + | |||
| + | *MCC currently re-steering the beam. Don't know how long this will take | ||
| + | |||
| + | |||
| + | *Data quality checks of SHMS? | ||
= Current Run Plan = | = Current Run Plan = | ||
| − | * | + | *Data taking moving forward (2.5 days Hopefully): |
| − | * 10 | + | *#Setting 4: 27 hours (when beam returns) |
| + | *#Setting 5: 11 hours including increased time for He3 | ||
| + | *#Setting 6: 6 hours ''' | ||
| + | *#Setting 7: 4 hours ''' | ||
| + | *#Setting 8: 3 hours ''' | ||
| + | *#Setting 9: 3 hours ''' | ||
| + | *#Setting 10: 3 hours ''' | ||
= Notices in Effect for Shift Crew = | = Notices in Effect for Shift Crew = | ||
* Beam current for the Helium targets is limited to 40 uA! | * Beam current for the Helium targets is limited to 40 uA! | ||
| + | * Monitor the target temperatures regularly! | ||
* Always let the RC know with questions and any issues that require expert help. https://logbooks.jlab.org/entry/4109412 | * Always let the RC know with questions and any issues that require expert help. https://logbooks.jlab.org/entry/4109412 | ||
| Line 52: | Line 75: | ||
= Special Requests = | = Special Requests = | ||
| + | *Need to do a BCM calibration at 60uA when Hall A is at low current / down. Coordinating with Hall A RC. | ||
Latest revision as of 11:00, 26 January 2023
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
- Finished setting 3 of high Q2 electron data taking in the HMS (-3.09 GeV and 35 deg). Completed swing 1/24/2023
- Helium-3 remains for setting 4 of high Q2 electron data taking in the HMS (-2.72 GeV and 35 deg).
- Carbon took 10 hours beam on time, 24 actual.
- Helium-4 took 11.5 hours beam on time, 17 actual.
- Aluminum stand-in took 4.5 hours beam on time, 6 actual.
- Helium-3 Est to take 27 hrs beam on time, <TBD> actual.
- Target temperature spike for loop 1 AND loop 2:
- https://logbooks.jlab.org/entry/4117272
- Loop 2 had a spike during production running, will need cut out
- https://logbooks.jlab.org/entry/4117306
- Greg looked into the spikes and found nothing of note. Suggested to continue as planned.
- Swing into owl target moved to loop 1, no issues.
- MCC currently re-steering the beam. Don't know how long this will take
- Data quality checks of SHMS?
Current Run Plan
- Data taking moving forward (2.5 days Hopefully):
- Setting 4: 27 hours (when beam returns)
- Setting 5: 11 hours including increased time for He3
- Setting 6: 6 hours
- Setting 7: 4 hours
- Setting 8: 3 hours
- Setting 9: 3 hours
- Setting 10: 3 hours
Notices in Effect for Shift Crew
- Beam current for the Helium targets is limited to 40 uA!
- Monitor the target temperatures regularly!
- Always let the RC know with questions and any issues that require expert help. https://logbooks.jlab.org/entry/4109412
Current Issues
- Accelerator issues to provide high beam current to Hall A and C.
- Lowering the Hall C current to reduce beam trips in a way the split between Hall A and C current is not in equitable way.
Planned Accesses to the Hall
Planned Accelerator Configuration Changes
Special Requests
- Need to do a BCM calibration at 60uA when Hall A is at low current / down. Coordinating with Hall A RC.
