Full 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 Checklist

Entering shift info

• Shift leader
• Target operator
• Analysis expert
• Shift (day, swing, or owl)
  • Enter the names of the shift workers (Shift leader, Target operator, Analysis expert)
  • Indicate which shift the checklist is for (day, swing, or owl)

Beamtime accounting

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))

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 momentum (GeV) Left Arm Q1, Q2, D, Q3 regulartors on (yes/no, ask experts)? Left Arm cryo flow level OK? Yes/No He>60% (Ignore Nitrogen) Left Arm NMR OK? Yes/No Left Arm Q1 Momentum (GeV/c) / current (A) / B-Field (+/-G) Left Arm Q2 Momentum (GeV/c) / current (A) / B-Field (+/-G) Left Arm D Momentum (GeV/c) / current (A) / B-Field (+/-G) Left Arm Q3 Momentum (GeV/c) / current (A) / B-Field (+/-G) Is Left VDC gas flow (top/bottom) on? Left VDC HV on (top/bottom)? VDC thresholds (All 4 values should be 3.0 V, yes/no) ? Left Cerenkov HV on? Left Pion rejector HV on? Left s0/s2m HV on (s0 may be off for production, check with expert)? Check online plots (y/n)? -LHRS

Right arm momentum (GeV) Right Arm Q1, Q2,D,Q3 regulartor 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?

In counting house

• VESDA System OK? (VESDA is the smoke/fire detection and alarm system. Check the Hall A VESDA Console on the wall beside the door to the compter room
• Empty drip tray and place mug under spout on coffee maker
  • Press the buttons on either side of the tray and pull toward you
  • Place a mug under the spout while emptying the tray (and the previous mug) in the bathroom sink
  • Replace the tray by sliding back into the machine
  • Place a mug under the spout to help keep the tray from overflowing