PPB - August 24, 2022
Jump to navigation
Jump to search
Coordinates
- On-site => Wednesdays @ 11am EDT in TL-2236
- Zoom => https://jlab-org.zoomgov.com/j/1609550529?pwd=RlNJYytUSk1tbzNJeUIxNUptTk9UzQT09&from=addon
Updates on last week's Action Items
- Yves/Dennis - work on beam lines #6 & #7 (123 MeV arc and exit line)
- Alicia/Reza - find gun/buncher/qcm models and circulate e- parameter table for gpt study
- Joe - continue tallying list of options for magnets and SRF media:220824_LERF_injectors.pptx
- Yves/Joe - reconcile LERF coordinates wrt CEBAF
- Carlos - summarize existing Wien capability for LERF gun voltage Media:Existing Wien capabilities for LERF gun voltage Carlos' slides 08-24-2022.pptx
- Sami - reconcile orbit offset vs. beam size and account for particle loss starting from target
- Joe/Fanglei/Amy - exchange ideas/options for e+ spin rotator inside LERF
- Sami - QWT study plan File:QWT plan.pdf
New Actionable Items
- Sami - evaluate e+ yield and final momentum as a function of capture linac parameters (gradient phase aperture)
- 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
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