RunPlan

PREX Run Plan

Part I: List of Tasks

Here is a list of tasks in approximate time order, with person(s) responsible, approximate amount of time required, and comments about the conditions or needs. The time will, in most cases, be broken up into manageable chunks.

• Basic Beam Setup -- 12 hrs   Jay Benesch, Bteam
  
• Source and Parity Quality Beam -- 12 hrs   Kent Paschke, Mark Dalton, Rupesh Silwal
  
• Low-current cavities -- 8 hrs (day)   John Musson, Zafar Ahmed
• Septum Commissioning -- 8 hrs   Bob Michaels, John LeRose
  • Verify septum does not steer beam
  • Thin target, low-current checks
• GEM Detectors -- 2 shifts   Ole Hansen, et.al.
• Main Detectors -- 3 shifts   Krishna Kumar, et.al.
  • Detector alignment -- Dustin McNulty
  • Pulse-height spectra and resolution

  LI> Check A_T hole and detector -- 2 shifts   Bob Michaels

  • Needs to be done before high-current - radiation issue
  • Successive accesses to block and unblock the A_T hole
• Water Cell and Optics of HRS+Septum -- 2 shifts   Nilanga Liyanage
  • Sieve Slit runs
  • Angle calibration
  • Access to remove water cell, cool target -- Dave Meekins
• Compton Commissioning -- 8 shifts   Sirish Nanda, et.al.
  • Beam Tune, Background reduction -- Bteam, Alexandre Camsonne
  • Compton Cavity Checkout -- Sirish et.al.
  • Photon Detector Checkout -- CMU group
  • Electron Detector Checkout -- Alexandre Camsonne
• Moller Commissioning -- 8 shifts   Sasha Glamazdin, et.al.
  • Magnet Alignment -- 1 shift (swing)
  • Raster size and pulse-mode -- 1 shift (day)
  • Target commissioning - 3 shifts
  • Pulse-mode target commissioning - 2 shifts
  • DAQ checkout -- 1 shift
• Establish luminosity limits -- 1 shifts
• Optimize helicity flip rate -- 1 shifts
  • Lumi and oversampling studies
  • 30, 120, and 240 Hz checkout
• Bulls-eye scan -- 1 shift
• Transverse Asymmetry -- 3 shifts
  • Spin Dance -- 1 shift
  • Running with deliberately transverse polarization -- 2 shifts

Part II: Schedule