PPB - October 12, 2022
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Coordinates
- On-site => Wednesdays @ 11am EDT in TL-2236
- Zoom => https://jlab-org.zoomgov.com/j/1609550529?pwd=RlNJYytUSk1tbzNJeUIxNUptTk9UzQT09&from=addon
Agenda
- Joe - near (prototype) and long (cebaf) term plan updates
- Andriy arrives next week!
- I meet w/ Thia, Patrizia, Doug, Andrei to discuss a) physics resources and b) beam functionality for e+ program
- CLAS invited a presentation (11/1 or 11/4) on status and perspectives of e+ at CEBAF
- Developing POC's to develop refined e+ budget estimate in ~4 months (tentatively I set the date at Feb 3)
- Reza - electron injector design status
- Yves - 123 MeV e+ transport status
- Eric - users' update
Ongoing topics...?
- 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) Media:Existing Wien capabilities for LERF gun voltage Carlos' slides REVISED.pptx
- 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
Reminders
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