BLTWG Meeting 07/21/2020

Organization

• Time: 1:30 EDT
• JLab meeting room: none
• Connecting: detailed instructions are here
  • H.323 ip address: 199.48.152.152
  • web browser: https://bluejeans.com/536076821
  • phone: 408-740-7256 or 888-240-2560
• Conference id: 536076821
• Present: Richard J., Mark D., Sasha S., Elton S., Alexandre D., Ken L., Dan S., Beni Z.

Jamie F., Hovanes E., Alexander A., Ahmed F., and Curtis M.

Agenda

1. Announcements
2. Polarimetry
   • TPOL polarimetry update
   • Progress on CBSA calculations
   • Polarimetry from hadron decays
3. Photon beam systematics studies
   • energy-dependent flux normalization -- Justin
   • recent corrections to tagger hodoscope fluxes -- Sasha
   • updates to energy_calib for earlier run periods? -- pending agreement on method
   • tagging accidentals scaling factors for spring 2020 -- Beni
   • Beam flux normalization studies-- Sasha
4. Preparation for the upcoming run
   • active collimator mod, dc bias offset -- Richard
   • [progress with hot checkout -- any
5. Ongoing investigations
   • energy-dependent beam profile from fast raster -- Richard
   • variation in collimator transmission -- updates?
   • converter thickness systematics -- open investigation
   • other topics?
6. Any other business