WAC Notes January 26 2020

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WAC Notes January 25 2020 << >> WAC Notes January 27 2020

January 26 2020

Daily Meeting BlueJeans

Production Run List - Slug 118 - IHWP IN - Flip-RIGHT - Production

• Good - Run 5942 - looks mostly OK, but the BCM has lots of outliers and ~1.2 ppm mean, so it should be reinvestigated later
• Good - Run 5943
• Good - Run 5944
• Good - Run 5950 - cut out 165000: for LQ1 trip
• Good - Run 5952 - Back to full production
• Good - Run 5953
• Good - Run 5954
• Good - Run 5955
• Good - Run 5956 - beam drifts at the beginning. Looks OK
• Good - Run 5957 - 9% residual Aq correlation, but its in the noise I guess

Non-Production Runs and Bad Runs

Lots of junk runs over the last few slugs, due to lots of tuning by Ops to be confident sending beam

• Ca40 - Run 5948 - Ca40, slow current ramp, not much good data
• Ca40 - Run 5949 - Ca40, slow current ramp, not much good data
• Good, but very short and 1 Arm - Run 5950 - cut out ALL for LQ1 trip

Pedestal/Calibrations Updates

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

Issues

• Everything:
  • BCMs read crazy stuff for Hall A laser/electronics (not other hall's beams): https://logbooks.jlab.org/entry/3770663
  • Ion chambers are a whole ordeal now
  • Ops can barely deliver 150 uA + other halls

Updates

• Apos U updated to check cancellation, etc.: https://logbooks.jlab.org/entry/3770772
• Main detectors adjusted for CREX II: https://logbooks.jlab.org/entry/3769574, https://logbooks.jlab.org/entry/3769736
• Again for minimizing inelastic states: https://logbooks.jlab.org/entry/3770683, https://logbooks.jlab.org/entry/3770808