Run Planning Meeting Notes, Oct 25-Oct 31, 2018

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Wednesday, Oct 31 at 08:45

  1. Last 24h
    • Accelerator recovery:
      • Started yesterday at 7am
      • Hall D (and Tagger) went into restricted access
        • Work on FCAL
        • Safety walk through
        • Installation and first tests of CompCal ~7h
      • Beam has been sent back to Hall D ~9pm
    • When beam was back:
      • Harp scan
      • Empty target run
      • Continued production sequence
  2. Issues and current status
    • Taking data at the moment
  3. Reports
  4. Plans
    • Accelerator
      • Fine tuning, beam will be taking away for ~1h, starting at 9am
      • Up to now: Continue physics until weekend
    • Hall D
      • Low energy measurements
        • E_beam = 11.6 GeV, E_g = 7GeV
        • All TAGH counters + nominal PS field
        • Beam current ~25nA
        • Take data with this setup ~2h
      • Any other plans/tasks/wishes?
  5. AoB
    • Free shifts! Take one, get one cookie for free!

Tuesday, Oct 30 at 08:45

  1. Last 24h
  2. Issues and current status
    • Detector is on standby (empty target, coll. blocked,...)
    • Accel. changed RF recovery to " General" recovery
    • Hall D is in restricted access, Tagger hall will be soon
    • Shifts between 8am and 4pm are on standby
  3. Reports
  4. Plans
    • Accelerator
      • Recovery
      • Hope beam to be back this afternoon
    • Hall D
      • CompCal
      • Walk through
      • Any other work?
    • Once beam is back
      • Harp scan
      • Empty target run
      • Return to production data
  5. AoB
    • Free shifts available

Monday, Oct 29 at 08:45

  1. Weekend: 10/26-10/28
  2. Issues and current Status
    • Main reasons for no data taking
      • Harp Scans ~30min
      • A few DAQ crashes
      • Beam down times ~30min (max. of 2h without beam)
    • BTA was partly not available
  3. Reports
  4. Plans
    • Accelerator
      • Mean studies on Monday (does not affect beam availability)
      • RF recovery on Tuesday
    • Hall D
      • Continue production runs until Tuesday morning
      • Tuesday
        • Go into restricted access on Tuesday for work at CompCal
        • Empty target run after RF recovery
  5. AoB
    • Open shift slots

Friday, Oct 26 at 08:45

  1. Last 24h
    • Shifts were on standby until 8pm
    • Hall went into beam permit ~8:30pm
    • Filled target, performed harp scans, checked radiation levels
    • Started taking data with AMO ~10:40pm
      • Cycled through the production sequence
      • Collected ~800M Evts so far
  2. Issues and current Status
    • Minor DAQ crashes
    • No beam for ~15min, 1L22-7 tripped
    • Data taking runs smoothly right now
  3. Reports
  4. Plans
    • Keep taking data over the weekend
    • No requests for additional tests/checks/measurements so far
    • Accel.
      • Beam studies on Monday
      • RF recovery on Tuesday
  5. AoB
    • No meeting during weekend

Thursday, Oct 25 at 08:45

  1. Last 24h
  2. Issues and current Status
    • Hall is in controlled access
    • Accell.
      • Extended phaser studies/tests into swing-shift
      • Master Oscillator Modifications (MoMod) ~8h begin in swing-shift
    • Earliest to expect beam: Around owl-shift (i.e. Friday)
  3. Reports
  4. Plans
    • Today
      • Work in hall (stay in controlled access)
        • BCAL (Elton)
        • TOF (Beni)
        • Walk through(s)
      • Shifts are on standby until 11:59pm today
      • IF beam is back:
        • Fill target, perform harp scans, check radiation levels, PS-rates,...
        • Start data taking with AMO @ 180nA
    • Upcoming days
      • Take data as soon as beam is available
      • Accel.
        • Beam studies on Monday
        • RF recovery for Tuesday, need to re-tune one of the cavitis
  5. AoB
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