2017-Feb-17 Accel. Phys. Biweekly Report
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Todd Satogata
Previous two weeks (Feb 6-Feb 17) - JACoW: board of directors telecon - ADMIN: Annual review meetings, CASA group meet - OPS: Hall D run setup/support; BTeam org, beam studies; Optics Feb 7-14 - HALLD: GlueX collaboration meeting/talk (Feb 16-18) - IPAC18: SAB invitation management - JLEIC: Resurrect old gear changing simulations for GHOST collaboration - JLEIC: Reading impedance papers Next two weeks (Feb 20-Mar 3) - OPS: Hall D run setup/support; BTeam org, beam studies; Optics Feb 7-14 - JLEIC: Work/meetings on ion bunch formation strategy - JLEIC: Collective effects, spreadsheet planning and nagging; R&D meet - JLEIC: reading impedance papers, start longitudinal simulations - JLEIC: Start 4/3 gear changing simulations for GHOST paper - IPAC18: Start organizing ideas for invited talk proposals (SPC task)
Alex Bogacz
Previous two weeks (Feb 6-Feb 17) - OPS: Optics support, injector match evaluation - PERLE: lattice re-design, Feb trip/presentation prep Next two weeks (Feb 20-Mar 3) - PERLE: Orsay kick-off meeting - PRAB article review - JLEIC: Booster meetings re injection/parameters
David Douglas
Previous two weeks (Feb 6-Feb 17) - JLEIC: Finish up emittance exchange, including example; document; first pass appears unworkable - JLEIC: Continue work on CCR arc requirements tech note and arc design - ADMIN: Accelerator TRC review memo (later rendered irrelevant) - PERLE: Feb trip/presentation preparation (operations driven I&C) Next two weeks (Feb 20-Mar 3) - JLEIC: Write up of emittance exchange slides/tech note - JLEIC: Return to CCR arc requirements document, CCR architecture concepts document, and ERL/CCR beam exchange system requirements
Rui Li
Previous two weeks (Feb 6-Feb 17) - Feb. 6-10: survey impedance budget studies, prepare and make presentation at the JLEIC R&D meeting - Feb. 13-18: understanding the state-of-art for the potential-well effect and the longitudinal single-bunch instability Next two weeks (Feb 20-Mar 3) - Feb. 20-26: understanding the logic and assumptions of ZAP, and see how its input can be related with the JLEIC database. Estimating JLEIC single bunch effects. - Feb. 27-Mar. 5: further understanding of the state-of-art for transverse single-bunch instabilities - Cheng-Ying needs more time to refine his thesis, so I expect to read and review it in a few weeks
Ed Nissen
Previous two weeks (Feb 6-Feb 17) - JLEIC: Continue implementing gear changing script model for Guinea Pig for 4/3 gear changing evaluation - JLEIC: Continue evaluating/planning Booster injection design, literature search - ADMIN: Fighting with MFA (took a few days) Next two weeks (Feb 20-Mar 3) - JLEIC: Continue writing PRSTAB paper draft on beam-beam sims, iterate with Daniel Schulte at CERN - JLEIC: Continue implementing gear changing script model for Guinea Pig for 4/3 gear changing evaluation - JLEIC: Finish literature search, start documenting parameters for calculations and future simulations
Chris Tennant
Previous two weeks (Feb 6-Feb 17) - JLEIC: analysis of CCR-like arc with collective effects (space charge, CSR, space charge + CSR) (it ain't good) - JLEIC: analysis of mitigation of CSR wake using RF cavity in circulator ring (still ain't good) - JLEIC: analysis of merger performance at 2 nC (it ain't good) - JLEIC: started combing through 2 years of notes/slides/TNs/results to summarize work done for the ERL-driven cooler concept (i.e. the previous baseline) Next two weeks (Feb 20-Mar 3) - JLEIC: continue work on aforementioned TN - JLEIC: simulate Slava's/Dave's emittance exchange (probably ain't good)
Randy Gamage
Previous two weeks (Feb 6-Feb 17) - JLEIC: Continue BLonD simulations of debunch/rebunch with impedance - JLEIC: Longitudinal impedance reading Next two weeks (Feb 20-Mar 3) - JLEIC: Continue BLonD simulations of debunch/rebunch with impedance - JLEIC: Continue Longitudinal impedance reading, calculations - JLEIC: Continue writing outlines of initial dissertation chapters