Ju1 22, 2018

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Agenda: Onsite update: Simona [1]

Simulation/Data discussion: Bill, Eric



Connection details:

Meeting URL https://bluejeans.com/388466836

Meeting ID 388 466 836

US toll free phone 1.888.240.2560

Dial in, type in the meeting ID and then press ##


Minutes Simona went through here slides with results from the previous polarimetry run on Jul 18/19. There is a question about the size of the Levchuk correction. Bill's GEANT3 correction is 3-4 times bigger than the one Eric gets from GEANT4. Simona reported that during the polarization runs they tried to go up to 0.3 muA but could not due to ion chambers downstream near the PREX target. They had to stay at 0.15 muA. She will talk to Yves about a solution for this after the meeting today if possible. They set up for a spin dance overnight last night, but never got any beam. The word is they will try again tonight.

Eric and Bill showed comparisons of simulation with data for previous runs. Eric wants to be able to compare Q4 and Q2 scans to simulation to get a better idea of how well we know their fields. He will pass scan settings on to Simona so that she can fit them in opportunistically. Eric and Bill will also compare notes on Levchuk.