Run Planning Meeting Notes, March 27-April 2, 2016

From GlueXWiki
Jump to: navigation, search

Saturday, April 2

No meeting

Friday, April 1

  1. Accelerator Status
    1. 1-pass separation to Hall B checked out during machine studies yesterday
    2. beam came back at noon, looked good
    3. 1 am, vacuum problem in north linac, recovering now, then some checks, ETA for beam 11-ish
    4. Hall B priority at 3 pm, three-hall operation commences
    5. Hall A gets priority Monday
  2. Hall-D/GlueX items
    1. beam intensity fluctuations, +-5% about nominal 200 nA, 6 second period
    2. tagger harp scan shows sigma_x = 1.2 mm, sigma_y = 0.5 mm, optics on call will take a look
      • Hovanes suggests regular harp scans, including two ACC harps in D beamline, MCC must do those
    3. Shift-takers: enter some run comments!
    4. other systems?
  3. Run Plan
    1. empty target run
    2. PS magnet current studies
    3. TRD run
    4. production running
  4. Offline analysis?
  5. Administrative Items
    • Google Calendar tips
    • Run Coordinator change today
  6. AOB?

Thursday, March 31

  1. Accelerator Status
    1. Problem with RF separation work yesterday succeeded, ran A and D overnight
    2. beam studies scheduled for today (4 hours)
  2. Hall-D/GlueX items
    1. fluctuating DAQ livetime solved (David)
    2. Fast Feed-Back turned on and working...
    3. beam intensity fluctuations, +-5% about nominal 200 nA, 6 second period
    4. diamond tuning by Hovanes
      • JD70-118 now much more centered
      • reduction in beam halo counter in tagger hall by a factor a few, in the active target by 30%
      • continue with JD70-118 (at least for now)
    5. FCAL calibration/gains (Adesh)
    6. straight track analysis (Simon)
    7. TPol sees higher polarization on JD70-119 than 118, 47%, 5 mm (Nathan)
    8. other systems?
  3. Run Plan
    • 12:00 intensity/lock study
    • 13:00 trigger studies
    • 17:00 production running
  4. Offline analysis?
  5. Administrative Items
    • Run Coordinator change tomorrow
    • Clean up EEL 126, room renovation coming, at least temporary loss of space (Tom)
  6. AOB?

Wednesday, March 30

  1. Accelerator Status
    1. Problem with RF separation yesterday
      • Beam taken away for RF work, 4 pm - 10 pm
      • Go back to work on issue today
    2. beam studies scheduled for Thursday
  2. Hall-D/GlueX items
    1. FCAL gain/calibration mystery (Adesh)
    2. gluonraid space (David)
    3. new microscope bias voltages (Richard)
    4. fluctuating DAQ livetime
    5. production running with tagger quad. current variation, deferred (Richard)
    6. other systems?
  3. Run Plan
    • 10:00 transmission studies
    •  ??:?? trigger studies
  4. Offline analysis?
  5. Administrative Items
    1. Run List, Paper Form
  6. AOB?

Tuesday, March 29

  1. Accelerator Status
    1. Problem with RF 2L07-7 overnight, control module replaced
    2. today after lunch: spin studies, will have few interruptions of 15 min. each
    3. beam studies scheduled for Thursday
  2. Hall-D/GlueX items
    1. beam issues
      • drifting y-position
      • satelite bump in beam profiler still there, plus new wart on main peak of x
      • active target counting rate low
    2. Solenoid magnet trip, Mon. 9 am
    3. FCAL field dependence study data being taken yesterday (Adesh)
    4. pair spectrometer study while ramping: deferred
    5. gluonraid space
    6. other systems?
  3. Run Plan
  4. Offline analysis?
  5. Administrative Items
    1. Standard Conditions
    2. Google Calendar
  6. AOB?

Monday, March 28

  1. Accelerator Status
    1. started beam delivery Sunday
    2. today: Hall B 1-pass extraction work will interrupt beam availability
    3. Hall A Moller quads need work, target filling, some viewer broken
    4. Hall D can ask for beam (beam on now), but may be taken away for extraction work
  2. Hall-D/GlueX items
    1. beam issues
      • drifting y-position
      • left should in y in tagger harp scan
      • satelite bump in beam profiler still there, plus new wart on main peak of x
      • active target counting rate low
    2. magnet ramping now...done by 2 pm
    3. Lubomir proposal, executed overnight last night
    4. quadrupole commissioning study
    5. FCAL field dependence study data being taken now (Adesh)
    6. pair spectrometer study while ramping?
    7. other systems?
  3. Run Plan
  4. Offline analysis?
  5. Next meeting?
  6. AOB?

Sunday, March 27

No meeting.