Difference between revisions of "PPB - September 21, 2022"

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Latest revision as of 10:05, 21 September 2022



  • Working with the physics positron working group
  • CAD model of transport beam lines
  • Simulating polarized e+ in solenoids with gpt and elegant

Ongoing Research

  • Sami - evaluate e+ yield and final momentum as a function of capture linac parameters (gradient phase aperture) media:Chicane_with_Andriy_s_model_week_5.pdf
  • Yves - begin working on injection/extraction lines from linacs
  • Dennis - update LERF to SL transport line to agree better with the FML costing geometry
  • Alicia - solicited for emission parameters for GPT, building model of Gun through QCM (desired matchpoint)
  • Carlos - evaluate gun voltage and electrode gap for 60 deg and E profiles vs. gap (compared to as built magnetic profile)
  • S&A will plan to measure LERF relative to CEBAF and cryo points for Joe, Kelly will add FML layout to CEBAF and provide Joe Gubeli points for CEBAF
  • Joe Gubeli - would like elegant lines when available, can show them in LERF model
  • Joe/Fanglei/Amy - exchange ideas/options for e+ spin rotator inside LERF
  • Joe - prototype experiment planning media:220831_LERF_injectors.pptx


Workshop on Polarized Sources Targets and Polarimetry (PSTP22) - Mainz, Germany, Sept 26-29 2022 [1]

  • J. Grames, "Spin Polarized Positron Beam Upgrade for Jefferson Lab", Abstract