BLTWG Meeting 04/27/2022

Organization

• Time: 3:00 EST
• 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
   • Can we improve the peak fits in the harp scan gui, find better uncertainties?
   • How can we determine the transverse x and y emittances in the Hall D beamline?
   • Next steps toward a 1cm x 1cm beam spot raster at the photon collimator?
3. Preparations for the CPP run
   • treatment of overlapping TAGM/TAGH region -- Elton
   • beam profiler update -- Aram
   • upgrade of radiator harp to 3-wire -- Tim
   • software upgrade for radiator harp scans -- Hovanes
   • other issues? -- anyone?
4. Polarimetry
   • TPOL polarimetry update -- Michael
   • polarimetry from pair production -- Andrew
   • progress on CBSA calculations -- Glasgow group
   • polarimetry from hadron decays -- Alexander A.
5. Photon beam simulations
   • CPP beam simulations -- Richard
6. PS and tagger calibration -- Sasha
7. Photon beam systematics
8. Diamond radiators
   • Next steps in radiator fabrication -- Richard
   • Next steps for radiator X-ray assessment -- Richard
9. Any other business