BLTWG Meeting 04/17/2019

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Organization

  • Time: 11:30 EDT
  • JLab meeting room: A110, Hall D counting house
  • Connecting: detailed instructions are here
  • Conference id: 536076821
  • Present: Richard J., Curtis M., Elton S., Alex A., Michael D., Justin S., Dan s., Stuart F.,

Agenda

  1. Announcements
  2. Beam monitoring issues
  3. Active collimator long-term charging effect
  4. Photon beam polarization
    • New release of TPOL polarization for 2016, 2017 run periods - Michael D.
    • Study of TPOL analyzing power with energy cuts - Richard J.
    • Systematics studies with 750um converter data, 2018 data - yet to come
    • Update on hadronic asymmetries - any
    • TPOL readout at high rate - Sasha
  5. Priority issues for immediate focus
    1. evaluation of beam flux systematic error (spectrum, normalization) - Justin, Sasha
    2. PS acceptance systematics - Sasha
    3. first round CBSA simulations - Richard
  6. Upcoming activities
    • removal/remounting of 5 virgin 50um diamonds
    • CLS measurements - next run period anticipated in June 2019
    • reconfiguration of the tagger for CPP - Richard
  7. Any other business