Run Planning Meeting Notes, January 19 - January 25, 2023

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Friday January 20

Past 24 hours

Shift Reports

Reports

Issues

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
    • BCM comparison (~15min, invasive to other halls). PD (Joe Grames) recommends comparing (not calibrating) the Hall D MPS BCM against the injector Faraday Cup #2: To do this:
      • Turn off beam to other halls
      • Close chopping aperture to other halls
      • Send beam to FC#2, use an upstream corrector to convince oneself it is centered (max current)
      • Send current to FC#2 (record it), then pull cup and go to Hall D (record it). Repeat for several current values: 0, 50, 100, 150, 200, 250, 300, 350, 400 and 450 nA.
      • Restore the upstream corrector
    • 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

Issues

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