Shift Checklist

In the process of editing and updating this page. Please contact Juliette Mammei crowder@jlab.org with questions or suggestions.

PREX Main<< Information for Shift Takers << Shift Taker Responsibilities

Finding the checklist

• Open the checklist
• If you are not already logged in, do so by clicking in the upper right of the page
• You should now be able to click Log in the upper left
• In log mode, you will be able to add notes in the boxes at the right
• Click the checkbox at the left of each item once it is complete

Item Instructions

• Entering shift info
  • Enter the names of the shift workers (Shift leader, Target operator, Analysis expert)
  • Indicate which shift the checklist is for (day, swing, or owl)
• Information about the beam
  • Is alarm handler running on hacweb7?
  • Is the volume up on hacweb7? (both hardware and software)
  • Beam Energy (GeV)
  • Beam current (µA)
  • Downstream raster (B) on? Yes/No
  • Raster size (x:y mm, see log 3654466 )?
  • Fast feedback on? Yes/No
  • Beam Position Monitor X/Y (mm) A
  • Beam Position Monitor X/Y (mm) E (BPM B in Hall A Tools)
  • BCM temperature (K) (PV, PS, Thermocouple) If these differ by +/-.5 from (110.0,110.0,115.0) contact RC and halog
  • Arc energy NMR locked? ( (Goto ARC or the "Field Management Screen", and verify if the box locked is ON/OFF))
  • VESDA System OK? (VESDA is the smoke/fire detection and alarm system. Check the Hall A VESDA Console on the wall behind the door
  • Current Target
  • Argon pressure (psi)
  • Ethane pressure (psi)
  • CO2 pressure (psi)
  • Visual Hall Inspection OK?
  • Truck ramp door closed ( use the camera to see the door from mirror)?
  • Septum current (A) and polarity?
  • Upstream/downstream corrector currents (A) ?
• Left Arm Checks
• Right Arm Checks

Right arm momentum (GeV) Right Arm Q1, Q2,D,Q3 regulator on? (yes/no) Right arm cryo flow level OK? Yes/No He>60% (Ignore Nitrogen) Right Arm NMR OK? Yes/No Right Arm Q1 Momentum (GeV/c) / current (A) / B-Field (+/-G) Right Arm Q2 Momentum (GeV/c) / current (A) / B-Field (+/-G) Right Arm D Momentum (GeV/c) / current (A) / B-Field (+/-G) Right Arm Q3 Momentum (GeV/c) / current (A) / B-Field (+/-G) Is Right VDC gas flow (top/bottom) on? Right VDC HV on (top/bottom)? Right Cerenkov HV on? Right Pion rejector HV on? Right s0/s2m HV on? Right SCIFI HV off (should be off during production runs, y/n)? S3 HV off (ch 6 of SCIFI HV GUI, should be off for production)? Check online plots (y/n)? -RHRS Latest run type (Test, Physics,..) Is the auto replay script running (ask the analysis expert)? Is the APEX run list (in a white binder) completed? Please attach the left/right HV and Scalers Screenshots to the shift report Time of beginning of latest run (RHRS) Latest run number Dead time (%) Beamtime accounting table submitted? Empty drip tray and place mug under spout on coffee maker