PPB - Feb 17, 2021

Meeting Info

We will meet on Wed (Mexico 9am, US 11am, France 5pm)
Bluejeans: https://bluejeans.com/164307983
Code to start the meeting 2864

Agenda

Presentations

• None scheduled (yet!)

Updates

• Jiquan - large aperture cavity model for simulations
• Alicia - range of injector e- beam properties between 0L02 and NL; e.g. "ideal" specs for e+
• Dennis - range of CEBAF e- beam specs through the machine (linacs, arcs)
• Joe - testing GPT w/ spin tracking
• Eric/Sami - Improving positrons datas simulation from GEANT4, - Bibliography about focusing using array of quadrupoles magnets

This and That

• (done) Joe share Sharepoint link so we can share files more readily
• Alicia post FY solenoid field models for both single and counter wound geometries on sharepoint
• Joe will do some more GPT spin testing, then Fanglei and Joe will compare Zgoubi and GPT spin tracking, we can use Wien and FY solenoid field models
• Alicia, Dennis, and Yves are working towards telling the group about desirable CEBAF e- beam parameters and possible limitations/acceptances
• Jiquan will suggest an RF cavity model with large aperture to use in the positron collection model

Future Meetings

• 2/24 - Bodgan - Concept for co-propagating e-/e+ beams at CEBAF
• TBD - Alicia - Primer on multi-objective genetic algorithm optimization (MOGA)