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