Difference between revisions of "WAC Notes August 13 2020"

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* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7678_000 Run 7679] - Everything looks way better. Still has RHRS more noisy, but the BPMs are much cleaner all around. 120 uA to avoid high compton background rates - first Compton ON data we've had
 
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7678_000 Run 7679] - Everything looks way better. Still has RHRS more noisy, but the BPMs are much cleaner all around. 120 uA to avoid high compton background rates - first Compton ON data we've had
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7681_000 Run 7681] -  
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* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7681_000 Run 7681]
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* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7682_000 Run 7682]
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7683_000 Run 7683]
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* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7684_000 Run 7684]
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7685_000 Run 7685]
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* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run7686_000 Run 7686]
  
 
== Non-Production Runs and Bad Runs ==
 
== Non-Production Runs and Bad Runs ==

Revision as of 09:20, 13 August 2020

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

WAC Notes August 12 2020 << >> WAC Notes August 14 2020

August 13 2020

Daily Meeting BlueJeans

Production Run List - Slug 188 - IHWP OUT - Flip-RIGHT - Production/Recommissioning

  • Good - Run 7679 - Everything looks way better. Still has RHRS more noisy, but the BPMs are much cleaner all around. 120 uA to avoid high compton background rates - first Compton ON data we've had
  • Good - Run 7681
  • Good - Run 7682
  • Good - Run 7683
  • Good - Run 7684
  • Good - Run 7685
  • Good - Run 7686

Non-Production Runs and Bad Runs

  • Junk - Run 7678 - Carbon 1% compton commissioning
  • Junk - Run 7680 - Carbon 1% compton commissioning

Issues

  • FFB issues at the beginning of the shift, but Gang Phase adjustments seem to get it down to a manageable level
  • There was concern over the RHRS having worse RMS regressed asymmetry
    • There is a ~30 ppm worse RHRS width, due to LHRS having 3mm more acceptance of inelastics
    • There was a false alarm of high width due to misusing 4aX BPM instead of 1X in the regressed histogram in panguin... oops!
    • Devi took an alignment run (with no dpp...) and sees everything is almost exactly as it was in March

Updates

  • Detectors are in exactly the same spots and conditions as in March
  • Pedestals need to be obtained in a few days and these runs reprompted