BLTWG Meeting 01/17/2023

Organization

• Time: 3:00 EDT
• JLab meeting room: none
• Connecting: detailed instructions are here
  • web browser: connect using zoomgov
  • phone: 833 568 8864 US Toll-free
• meeting ID: 161 038 5436
• passcode: 097756

Agenda

1. Announcements
2. Accelerator update -- Edith
   • Next steps toward a 1cm x 1cm beam spot raster at the photon collimator?
3. Polarimetry
   • TPOL polarimetry update -- Michael
   • polarimetry from hadron decays -- Alexander A.
   • latest coherent edge (enhancement) -- Hovanes
4. Calibration and systematics studies
   • TAC (CCAL) normalization results -- Sasha
   • PS and tagger calibration -- Sasha
   • Luminosity determination for PrimEx -- Sasha
   • Photon beam systematics studies -- Richard
5. Ongoing tagger work
   • Report on TAGM energy changeover -- Ellie
   • Investigating the TAGM photon yield decline over time -- Ellie
6. Ideas for future running at higher beam intensity
   • tests and optimization of X-ray absorber - Lubomir, Justin
   • possible design of a beamline X-ray deflectorr - Richard
7. Diamond radiators
   • plans for the next run at CLS -- Zisis
8. Any other business