20170310-JleicIonIntegration

Mar 10 2017 JLEIC Ion Integration Meeting (and Notes)

Todd continues to develop a draft beam parameters spreadsheet (pdf), including input parameters and derived parameters
- Have added rough start at some instability thresholds, verified longitudinal parameter calculations vs esme
- Some items (particularly space charge calculation) need to be revisited to agree with Jiquan's calculations
- Note that these are explicitly beam parameters, (mostly) not accelerator hardware parameters (e.g. lattices, instrumentation, etc)
- Will move forward with reorganizing beam/lattice parameters area in coming weeks
Three goals:
- Ensure consistency of design beam parameters at matchpoints between JLEIC machines
- Provide input to impedance and instability calculations, and broader beam simulation effort
- Serve as a machine-by-machine beam parameter reference for the eventual CDR

Bunch formation (Jiquan, Todd, Randy; Ed, Vasiliy)
- See above update
- Randy is assisting Todd with esme calculations; will cross-validate with BLonD (CERN python longitudinal code)
Booster injection (Ed)
- Ed has reviewed literature, is resurrecting Synergia work
- Update in two weeks?
Linac (Brahim; Todd, Ed, Amy)
- Brahim is evaluating tradeoffs of H+ vs H- beam transport
- Reported at Mar 2 R&D meeting; further report at collaboration meeting
- Existing modeling is good enough to use for beam parameters for Booster injection
Booster extraction (Ed/Todd?) / Booster to Collider (Todd, Yves?) / Collider injection (Vasiliy?)
- Bucket to bucket synchro/cogging?
- Final beam stripping
- Polarization (AGS to RHIC transfer spin design chapter)
Coordination with other groups
- Beam cooling (Steve Benson et al.: Booster DC, Collider)
- Instability/impedance (Rui Li et al.)