Difference between revisions of "BLTWG Meeting 02/16/2022"

Revision as of 15:10, 16 February 2022

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

Announcements
Accelerator update -- Edith
- What can be done to improve the peak fits in the harp scan gui, find better uncertainties?
- Is there some means to determine the transverse x and y emittances in the Hall D beamline?
- What would be required to get a 1cm x 1cm beam spot raster at the photon collimator?
Polarimetry
- TPOL polarimetry update -- Michael
- polarimetry from pair production -- Andrew
- progress on CBSA calculations -- Glasgow group
- polarimetry from hadron decays -- Alexander A.
  - PSigma, ψ₀ for all batches but 02
  - Comparison with TPOL results for batch 05-08
Photon beam simulations
- CPP beam simulations -- Richard
PS and tagger calibration -- Sasha
Photon beam systematics
- tagging accidentals scaling factors -- Beni
- luminosity and flux normalization
- updates to ccdb energy_calib for earlier run periods
- reminder of Task Force: plan for writeup of current systematics
  - photon beam systematics overview -- Richard
Diamond radiators
- X-ray rocking curve measurements at CLS in December, 2022 -- Richard
  - JD80-1
  - JD80-200
  - JD80-210
  - JD80-220
- Next steps in radiator fabrication -- Richard
- Next steps for radiator X-ray assessment -- Richard
- other topics?
Evaluating status of Hall D hardware and electronics (Feb 2022)
Any other business

@@ Line 19: / Line 19: @@
 #* progress on CBSA calculations -- ''Glasgow group''
 #* polarimetry from hadron decays -- ''Alexander A.''
+#** [https://halldweb.jlab.org/talks/2021/rho_2019-11_ver01/psigma_2019-11_all_but_batch02.pdf PSigma], [https://halldweb.jlab.org/talks/2021/rho_2019-11_ver01/psi_2019-11_all_but_batch02.pdf &psi;<sub>0</sub>] for all batches but 02
+#** [https://halldweb.jlab.org/talks/2021/rho_2019-11_ver01/fit_batch05-08.pdf Comparison with TPOL results for batch 05-08]
 # Photon beam simulations
 #* CPP beam simulations -- ''Richard''