BLTWG Meeting 09/28/2022

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Organization

  • Time: 3:00 EDT
  • JLab meeting room: none
  • Connecting: detailed instructions are here
  • meeting ID: 161 038 5436
  • passcode: 097756

Agenda

  1. Announcements
  2. Accelerator update -- Edith
    • Progress understand regular excursions in the beam y position?
    • Next steps toward a 1cm x 1cm beam spot raster at the photon collimator?
  3. Issues related to the Primex run
    • problems with stability of the active collimator? -- Richard
    • check of the active collimator distance scale -- Richard
    • other issues? -- anyone?
  4. Polarimetry
    • TPOL polarimetry update -- Michael
    • polarimetry from pair production -- Andrew
    • polarimetry from hadron decays -- Alexander A.
    • check using CBSA (enhancement) -- Richard
  5. Calibration and systematics studies
    • TAC (CCAL) normalization results -- Sasha
    • PS and tagger calibration -- Sasha
    • Luminosity determination for PrimEx -- Sasha
    • Photon beam systematics writeup -- Richard
  6. Diamond radiators
    • recent progress in radiator fabrication -- Richard
  7. Ongoing development and studies
    • Intermediate and final status of TAGM relocation to 9 GeV -- Richard
    • Understanding the TAGM photon yield decline over time -- Ellie
    • Performance of TAGH counters in vicinity of TAGM -- Sasha
  8. Any other business

Notes