Difference between revisions of "Run Planning Meeting Notes, January 19 - January 25, 2023"
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+ | = Monday January 23 = | ||
+ | === Past 72 hours === | ||
+ | * | ||
+ | |||
+ | === Shift Reports === | ||
+ | * Day shift summary [Friday], [Saturday], [Sunday] | ||
+ | * Swing shift summary [Friday], [Saturday], [Sunday] | ||
+ | * Owl shift summary [Saturday], [Sunday], [Monday] | ||
+ | * Early Riser shift summary [Saturday], [Sunday], [Monday] | ||
+ | |||
+ | === Reports === | ||
+ | * | ||
+ | |||
+ | === Issues === | ||
+ | * RC volunteer needed (Beni's RC week because of his surgery, and Susan's week because she had to cancel her trip to the US). Hovanes and Simon volunteered to cover the two weeks. | ||
+ | |||
+ | === Plans === | ||
+ | * | ||
+ | |||
= Friday January 20 = | = Friday January 20 = | ||
=== Past 24 hours === | === Past 24 hours === |
Revision as of 15:24, 20 January 2023
Contents
Monday January 23
Past 72 hours
Shift Reports
- Day shift summary [Friday], [Saturday], [Sunday]
- Swing shift summary [Friday], [Saturday], [Sunday]
- Owl shift summary [Saturday], [Sunday], [Monday]
- Early Riser shift summary [Saturday], [Sunday], [Monday]
Reports
Issues
- RC volunteer needed (Beni's RC week because of his surgery, and Susan's week because she had to cancel her trip to the US). Hovanes and Simon volunteered to cover the two weeks.
Plans
Friday January 20
Past 24 hours
- Ran on amorphous radiator (250 nA) until 10am. Then, beam was taken away for RF work (high current push for Halls A and C). Beam came back around 5:30pm. We did harp scans, a BCM/FCup calibration, and then ran on various amorphous radiators during the night and early morning. ABU= 11.5h for the day
- Several accesses done during the day:
- Sasha (FADC replacement for TOF)
- Sergey
Shift Reports
Reports
- Harp scans. Sigma_y is too wide=> too wide photon beam spot (magenta). Okay for now (unpolarized beam)?
- TOF calibration (Beni), FADC replacement for TOF (A. Somov)
- Difference in Shape of Reconstructed photon beam energy with different AMO radiators (Churamani Paudel)
Issues
- Beam energy oscillation investigation (M. Tiefenback). Summary: Mike T. suspects the oscilations are not real but he is asking confirmation/advice from the system experts.
- Tim W. reminder on acknowledging alarms
- HVB currents look high and follow-up (Naomi)
- 30% increase in rates compared to Summer 2020 run period.
- Original finding by A. Somov
- Comparison of 2020 and 2023 for TAGH rates (A. Deur)
- Check that TAGH counters scale with (A. Deur)
- rho and pi0 yields (A. Austregesilo)
- BCM/FCup calibration suggested by the PD, its results and follow-up.
- the rate discrepancy after BCM/FCup calibration has been reduced by half (A. Deur)
- Ran overnight on different amo radiators
Plans
- Thursday evening and Friday night:
- Once beam come back, do Harp scans.
- FCup test of our beam dump BCM.
- Run 1h on the amo radiator of the goni (baseline for next runs below). 250 nA
- Run 2h on 0.19E-4 RL amo radiator on radiator ladder (250 nA).
- Run 2h on 1.12E-4 RL amo radiator on radiator ladder (250 nA).
- Run (until the beam is taken away in the morning) on 3.4E-4 RL amo radiator on radiator ladder (250 nA).
- Beam off starting Friday morning around 7:30am to fix vacuum issue in south linac, until 4pm(?).
- When the beam comes back:
- Harp scans
- Production on goni amo radiator at 300 nA until Sunday morning.
- Hall access:
- Sergey F.
- Diamond alignment: Sunday morning, ~9am.
- Until then production on amorphous.
- Link to runplan
Thursday January 19
Past 24 hours
- Ran on empty target until 7:20am. Then, beam was taken away for beam and RF study and acceptable beam came back only Thursday at 1:10am. ABU= 4h for the day
- refilled the target around 4:15pm.
- Several accesses done during the day:
- Scot
- Sergey
- David Lawrence
- Cody
- Took amorphous data, starting around 1:10am after aborted attempt to check diamond alignment.
Shift Reports
Reports
- Harp scans (just our harp)
- Hovanes attempted to start diamond alignment between 10:50pm-1am. Not able to start due to lack of good beam.
Issues
- TOF rate issues (Beni)
- beam energy oscillation
- 30% increase in transmission compared to Summer 2020 run.
Plans
- Beam off starting around 10am for RF study, nominally until 4pm+/-4h.
- Hall in controlled access?
- Diamond alignment: Friday day ? (Hovanes unavailable today)
- Until Friday day, production on amorphous?
- Link to runplan