WAC Notes August 3 2019

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PREX Main << Weekly Analysis Coordinator << WAC Notes << Instructions

WAC Notes August 2 2019 << >> WAC Notes August 4 2019

August 3 2019

Daily Meeting BlueJeans

Production Run List

  • Slug 27, Wein_Left, IHWP_IN
    • continued from 2August (runs 3811-3813)
    • runs 3814-3821
      • temperature increases in collimator lead to a lowering of beam current by shift crew
      • beam current consistently lowered throughout the slug to find temperature stability
      • main detector widths increased throughout the slug as well
      • target changed from D9-208Pb-D10 (this target experienced ~20C over its lifetime, ~15 good)
      • good production running
    • runs 3822
      • new target D7-208Pb-D8
      • good production running
      • collimator temperatures low and stable
    • run 3823
      • good production running
      • increased raster size
  • Slug 27: Good Charge: 1.65C, Total Charge: 1.91C
  • Slug 28, Wein_Left, IHWP_OUT
    • runs 3824-3838,3840 : good production running : ended on 4 Aug.
    • run 3839: suspicious, large MD width
    • runs 3831-3833: junk runs 0uA, DAQ testing

Non-Production Runs and Bad Runs

Pedestal/Calibrations Updates

Issues

    • increased widths as target D9-208Pb-D10 degraded (through run 3821); improved with new target (run 3822)

Other Status Updates