PREX/CREX Monday, March 2, 2015 3:00pm EDT

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Link to the Meeting page PREX/CREX Teleconferences
Last meeting: PREX/CREX Monday, February 16, 2015 3:00pm EDT

The teleconference info is as follows:
       Phone #: +1-888-240-2560 or +1-408-740-7256 and See International Numbers
       Code: 174599135


  • Radiation Around Septum and HRS Area Electronics by Ciprian elog-2969

Paul,Ciprian,Rakitha, KK, Dustin, Kent, Bob, Seamus


  • Ciprian analysis was started to address the Thia's concern that order of magnitude reduction in radiation wrt to PREX-I is only relative. Therefore simulation was done to compare with LH2 target at 3.08 GeV (HAPPEX setup)
  • This simulation results shows that the increase in the radiation for electron hut areas are minimal in PREX-II wrt HAPPEX setup
  • One issue that still concerns us related to what damages PREX-I has done to the hall.
  • Bob was able to look at faults occurred during PREX-I by looking at halog entries.
    • It would be nice to do similar fault count during HAPPEX running
    • Also look at fault count during PREX-I followup experiment (deuterium target with 5% heavy radiator )
  • It should be noted that PREX radiation issues mainly arise due to narrower aperture septum beam pipe and fringe field issues that were not present in other Hall A experiments.
  • Compare the power dumped into the hall A in PREX I and II and also HAPPEX and deuterium experiment that followed the PREX-I experiment
  • PREX-II budget list budget_prexII
    • We need similar budget for CREX now


  • Beam parasitic studies needs a to-do list

TO DO Lists

  • It would be nice to have real-time viewer for optics studies in commissioning (disussed in 01/16/2014 meeting)

TO DO Lists link: PREX, CREX