Difference between revisions of "Run Planning Meeting Notes, Feb 28 - Mar 6, 2019"
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(→Friday, Mar. 1 at 08:45) |
(→Friday, Mar. 1 at 08:45) |
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== Friday, Mar. 1 at 08:45 == | == Friday, Mar. 1 at 08:45 == | ||
# Past 24 hours: | # Past 24 hours: | ||
− | #* [https://logbooks.jlab.org/entry/3661211 Be target removed] | + | #* [https://logbooks.jlab.org/entry/3661211 Be target removed Thursday morning] |
#* [https://logbooks.jlab.org/entry/3661206 Examination of material in beamline] | #* [https://logbooks.jlab.org/entry/3661206 Examination of material in beamline] | ||
#* [https://logbooks.jlab.org/comment/20469#comment-20469 Shift in CompCal acceptance along +x] | #* [https://logbooks.jlab.org/comment/20469#comment-20469 Shift in CompCal acceptance along +x] | ||
Line 37: | Line 37: | ||
#* Summary: Empty target is ~25% of statistics for Be target running | #* Summary: Empty target is ~25% of statistics for Be target running | ||
# Today's plan: | # Today's plan: | ||
− | #* LHe target installation: | + | #* LHe target installation (ongoing): |
#** Hall opened at 6 am for bleeding up beamline and target removal | #** Hall opened at 6 am for bleeding up beamline and target removal | ||
− | #** Target installation and | + | #** Target installation ongoing and S&A to fiducialize and align target around 10 am |
− | #** Other work in the Hall: | + | #** Other work in the Hall: |
+ | #*** Start counter installation status: cabled and signals checked? who? | ||
+ | #*** Others? | ||
# LHe target cooldown and filling schedule? | # LHe target cooldown and filling schedule? | ||
#* Chris expects ~10-12 hours required for cooldown. He would like to be here during the initial fill. | #* Chris expects ~10-12 hours required for cooldown. He would like to be here during the initial fill. | ||
#* Possible plan: Run warm empty target for few shifts, start cooldown over the weekend and fill on Sunday/Monday? | #* Possible plan: Run warm empty target for few shifts, start cooldown over the weekend and fill on Sunday/Monday? | ||
+ | # Plans for next week: | ||
+ | #* Beam studies on Monday: | ||
+ | #** Parity studies in Hall A from 8:30-12 | ||
+ | #** Todd will work on improving Hall D optics and convergence from 12-4 | ||
+ | #* RF recovery on Tuesday: expected but don't know duration yet |
Revision as of 09:31, 1 March 2019
- Run_Coordination_Meetings:Spring2019_Run
- PrimEx-η run plan
- Production runs, number of triggers
- To join via a Web Browser, go to the page https://bluejeans.com/660743227
Thursday, Feb. 28 at 08:45
- Past 24 hours:
- Beam orbit locks off to allow Hall C current increase
- Unstable beam, lots of tuning to get high current for Hall A/C. 25 trips/hr average and will work to improve when they identify a path forward.
- Compton Production:
- 2.86 billion triggers with Be (Runs 61321-61344)
- 0.24 billion triggers with previous no target (Runs 61308-61311)
- Occupancy plots - Sasha
- Compton plot run 61322 - Drew
- Energy monitoring - Alexandre
- Today (Thursday):
- Remove Be foil @ 8 AM, but leave cylindrical holding tube. Lockup hall at ~1 pm
- Production running with no target until 6 am Friday morning
- Friday plan:
- LHe target installation:
- Hall open at 6 am for bleeding up beamline
- LHe target installation:
Friday, Mar. 1 at 08:45
- Past 24 hours:
- Be target removed Thursday morning
- Examination of material in beamline
- Shift in CompCal acceptance along +x
- FCAL survey from 2015 shows it is shifted in +x direction by 0.5 cm, which matches the shift in CompCal acceptance
- Compton production statistics
- 0.24 billion triggers with no target (Runs 61308-61311)
- 2.86 billion triggers with Be (Runs 61321-61344)
- 0.42 billion triggers with empty target holder cylinder (Runs 61345-61354)
- Summary: Empty target is ~25% of statistics for Be target running
- Today's plan:
- LHe target installation (ongoing):
- Hall opened at 6 am for bleeding up beamline and target removal
- Target installation ongoing and S&A to fiducialize and align target around 10 am
- Other work in the Hall:
- Start counter installation status: cabled and signals checked? who?
- Others?
- LHe target installation (ongoing):
- LHe target cooldown and filling schedule?
- Chris expects ~10-12 hours required for cooldown. He would like to be here during the initial fill.
- Possible plan: Run warm empty target for few shifts, start cooldown over the weekend and fill on Sunday/Monday?
- Plans for next week:
- Beam studies on Monday:
- Parity studies in Hall A from 8:30-12
- Todd will work on improving Hall D optics and convergence from 12-4
- RF recovery on Tuesday: expected but don't know duration yet
- Beam studies on Monday: