WAC Notes February 24 2020

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WAC Notes February 22 2020 << >> WAC Notes February 25 2020

February 24 2020

Daily Meeting BlueJeans

Production Run List - Slug 142 - IHWP OUT - Flip-LEFT - Production

Start this slug middle of Day shift, February 22 and Complete in the beginning of Swing shift, February 22. Due to LQ1 trip we went to slug143 in between.

• Good - Run 6599
• Good - Run 6600
• Good - Run 6608
  • Position and Energy excursion
• Good - Run 6610
  • LQ1 tripped bad_event_cut applied
  • Short run
• Good - Run 6627
  • Energy Shift
• Good - Run 6628
• Good - Run 6629
• Good - Run 6630
  • ~1mm of energy excursion in the beginning
• Good - Run 6631
• Good - Run 6632
  • BCM noisy, sudden spike in BCM yield (See https://logbooks.jlab.org/entry/3790496)
  • Large (~9+/-2.5ppm) Aq in minirun2

Production Run List - Slug 143 - IHWP ??? - Flip-LEFT - Production

INCOMPLETE

Production Run List - Slug 144 - IHWP IN - Flip-LEFT - Production

Start this slug halfway swing shift, February 23

• Good - Run 6633
• Good - Run 6636
  • An outlier in bcm_asym (~8000ppm)
• Good - Run 6637
  • Some energy excursion (~1mm)
• Good - Run 6638
• Good - Run 6639
  • LHRS yield started degrading again
• Good - Run 6644
  • Septum needed to cycle before this run.
  • LHRS energy slope jumped up after the cycle
• Good - Run 6645
  • ~-5+/-3ppm Aq in minirun3
• Good - Run 6646
• Good - Run 6647
  • ~1mm of energy bpm excursion
  • dpp jumped to ~-3e-4 causing ~3mm of less acceptance in quartz.(See https://logbooks.jlab.org/entry/3790948)
  • This caused energy slope increase and width increase during minirun4
  • Applied bad_event_cut for CodaEventNumber(351000:354000)
• Good - Run 6650
  • MCC sent ~25uA unrastered beam accidentally for about 40sec just before Moller measurements
  • This run was dedicated to test target performance
• Good - Run 6662
  • BCM widths are slightly larger starting this run
  • When we come back fro Moller measurement, Energy slope, detector widths and yield get worse and remain stable there
• Good - Run 6663
• Good - Run 6664

Pedestal/Calibrations Updates

• https://docs.google.com/spreadsheets/d/1mt39fCuIW3Pr8TO7fzhtFjmMFt4Op30jMm5wMQke6Xo/edit?usp=sharing