Run Plan From Run Coordinator

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Jan 14 Swing

  • Finish Kin1 running (see whiteboard)
  • Angle change
    • Call Tech On Call a little in advance
    • Set both spectrometers to 19.135deg (TECHS ONLY)
  • FADC Window Check (expert only: [Link])
  • Begin Kin2 (always use PS1=PS2=PS3=1 (unless otherwise specified))
    • Carbon Hole centering check
    • Home, 10uA, 10 minutes
    • multifoil, 10 uA, 10 minutes
    • carbon, 20 uA, 10 minutes
    • carbon, 20 uA, only PS8=100, 5 minutes
    • Empty Cell, 20uA, 30 minutes
    • 3He Cell, 20uA, 1hr 40min
    • 1H Cell, 20uA, 40min
    • 2H Cell, 20uA, 40min
    • 3H Cell, 1hr 20min
    • Empty Cell, 20uA, 30 minutes
    • 3He Cell, 20uA, 1hr 40min
    • 1H Cell, 20uA, 40min
    • 2H Cell, 20uA, 40min
    • 3H Cell, 1hr 20min

Jan 13 Day

  • Carbon Hole centering (with Meekins adjusting encoder values)
  • Check distance from centered on hole to collimator edge, change only BPMBx (should be nearby in positive BPMx)
  • Raster size fine tuning
  • Harp scan with raster on (clock trigger only)
  • BPM pedestal run (Call in Jason)
  • Bullseye scan (with Jason)
  • Trigger checkout (Florian looking a remote scopes)
  • Prescale/deadtime checks with dummy target
  • DAQ checkout (shifters/experts check online plots)
  • optics data:
    • Single-Foil Carbon, raster off
    • Single-Foil Carbon, raster on
    • Multi-Foil Carbon, raster off
    • Multi-Foil Carbon, raster on
  • If still waiting for gas cell permission:
    • Dummy Target, 10uA, raster on

Jan 12 Swing

  • Hall Access --Completed
  • Collimator edge-finding --completed
  • clock run for BPM sanity check
  • Bogdan's raster target edge-finding sanity check
  • carbon hole finding/centering (see how close we can get, may need to ask for BPMBx != BPMAx in order to avoid collimator)
  • Continue with the Commissioning Plan: [1]
    • Do not skip the bullseye scan (even though we took one harp scan earlier today)
    • Doug will do the Arc energy measurement sometime this weekend. (Don't call him for this in the middle of the night...)
  • If startup procedure is completed, take 5uA runs, 30 min each:
    • Single-Foil Carbon, raster off
    • Single-Foil Carbon, raster on
    • Multi-Foil Carbon, raster off
    • Multi-Foil Carbon, raster on
  • If still waiting for gas cell permission:
    • Dummy Target, 10uA, raster on

Jan 12 Owl


Jan 11 Swing

  • Monitor the target
  • Check that RHRS and LHRS are at 15.577deg and 3.1 GeV
  • Take Cosmics on both arms until beam setup begins
  • coordinate with MCC for 5th pass beam setup!

Dec 16 Owl Shift

  • Finish the Boiling Study
  • ~1am: access to move LHRS to 22deg
  • Run on 3H, 3He, 1H, 2H, and empty cell until Day Shift

Dec 15 Swing Shift

  • See WhiteBoard
  • Boiling Study: [2]


Dec 15 Day Shift

  • Remove Sieve from LHRS
  • Run Dummy with nominal raster at I = 22.5, 15, 10, 5, 2.5 uA -- 2 million events each (~15 minutes @ 2kHz)
  • FADC threshold check
  • Run Multifoil with nominal raster at I = 22.5, 15, 10, 5, 2.5 uA -- 1 million events each (~15 minutes @ 2kHz)
  • Access begins at 1pm https://logbooks.jlab.org/entry/3505097
  • When gas cell running is approved:
    • call RC
    • begin target boiling study [3]

Other Links

Brief but reflects the exact runplan.


Documentation and details. Could be out-of-date. Please always check with run coordinator and student experts.

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