Difference between revisions of "BLTWG Meeting 06/09/2020"

Revision as of 11:29, 9 June 2020

Time: 1:30 EDT
JLab meeting room: CEBAF Center F324-325
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:

Announcements
Beam flux
- artifact seen in b1 cross section - Ahmed
Polarimetry
- TPOL polarimetry update
- Progress on CBSA calculations - Jamie
- Polarimetry from hadron decays: PΣ for spring 2020
  - Shift of beam spot on diamond: around runs 71730 [1] and 71860 [2]
  - Change of AC position: run 71992 [3], [4]
Offline analysis
- coordinated updates to ccdb for 2020 spring run
  - hodoscope/energy_calib
  - microscope/scaled_energy_range
  - microscope/integral_cuts
- dead channels database update for spring run
- updating energy_calib for earlier run periods
Photon beam systematics studies
- formation of Photon Flux Systematics Task Force -- discussion
- tagging accidentals scaling factors for spring 2020 -- Beni
- beam flux normalization studies -- Sasha
Ongoing investigations
- energy-dependent beam profile from fast raster -- Richard
- variation in collimator transmission -- updates?
- converter thickness systematics -- 'updates?
- other topics?
Any other business

@@ Line 15: / Line 15: @@
 # Polarimetry
 #* TPOL polarimetry update
-#* Progress on CBSA calculations
+#* [http://nuclear.gla.ac.uk/~jamesf/CBSA/Spring2018/CBrem_NoBadFits.html Progress on CBSA calculations] - ''Jamie''
 #* Polarimetry from hadron decays: [https://halldweb.jlab.org/talks/2020/rho_2019-11_ver12/psigma_vs_run.pdf P&Sigma; for spring 2020]
 #** Shift of beam spot on diamond: around runs 71730 [https://logbooks.jlab.org/entry/3778980] and 71860 [https://logbooks.jlab.org/entry/3786757]