2017-03-17

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Director - M. Spata
No report



Accelerator Physics - T. Satogata

Todd Satogata

  Previous two weeks (Mar 6-Mar 17)
    - OPS: BTeam org, beam studies planning, Hall C KPP support
    - ODU: Review PhD theses for Kirsten Deitrick, Ahmad Sheikhzadah
    - JLEIC: Continue work/meetings on ion bunch formation strategy
    - JLEIC: Start writing ramp calculator code to evaluate/plot synchrotron ramps
    - JLEIC: Collective effects, spreadsheet planning and nagging; R&D meet
    - JLEIC: Finish impedance theory work, start longitudinal simulations
    - JLEIC: Evaluate evol beam-beam code, present at biweekly simulation meet
    - IPAC18: Start organizing ideas for invited talk proposals (SPC task)
    - ADMIN: Eric Thompson meetings, research input
    - ADMIN: Prepping for Elon documentary student visit Mar 20-22
    - JACOW: COOL'15 proceedings published on JACoW website Mar 9
  Next two weeks (Mar 20-Mar 31)
    - ADMIN: Elon documentary student visit Mar 20-22
    - ODU: PhD defenses for Kirsten Deitrick (Mar 21), Ahmad Sheikhzadah (Mar 28)
    - IPAC18: Organize/submit ideas for invited talk proposals (deadline Mar 31)
    - IPAC18: Review/clean up invited talk proposals for committee evaluation
    - JLEIC: Develop/document ion bunch formation strategy
    - JLEIC: Collective effects, spreadsheet planning and nagging; R&D meet
    - JLEIC: Start 4/3 gear changing simulations for GHOST paper, evol beam-beam sims
    - JLEIC: Prep talks for Apr 3-5 collaboration meeting
    - ADMIN: Eric Thompson meetings, research input

Alex Bogacz

  Previous two weeks (Mar 6-Mar 17)
    - PRL article review
    - PERLE: Iterate mini-PERLE design with longer magnets (per CERN)
    - JLEIC: Booster input to Todd re injection/parameters
    - ADMIN: Invention dicsclosures review, TRC meeting
  Next two weeks (Mar 20-Mar 31)
    - PERLE: Optics optimization with longer magnets, larger footprint
    - USPAS: Practical lattice design course development
    - ADMIN: SPC meetings (ERL'17, NuFact'17)
    - JLEIC: Incidental design meetings

David Douglas

  Previous two weeks (Mar 6-Mar 17)
    - Finished write-up of transverse/longitudinal EmEx (JLAB-TN-17-008)
    - Reviewed numerous proposals as part of US/Japan Panel Review
      (Gaithersburg, 3/6)
    - Provided input to Shawn Frierson on LERF operational procedures
    - Did markup on forthcoming JLAB-TN on ERL-based single-pass
      cooler (Tennant, Douglas, Benson, & Hannon)
    - Did markup on Project E journal article in preparation
      (Akkermanns, Setija, (ASML), Di Mitri (FERMI@Elletra), &
      Douglas)
    - Cooked up a way to double CEBAF momentum acceptance; draft TN
      attached (waiting on co-author review before releasing)
    - Laid out/evaluated solution for CCR/ERL beam exchange system
      (1st iterate 75% complete; still have to do ERL-to-exchange
      transport match)
  Next two weeks (Mar 20-Mar 31)
    - Complete beam exchange and write up
    - Write up ERL/CCR architecture requirements/trades
    - Write up "Life Hacks" for magnetized beam
    - Complete and write up requirements document for CCR arcs
    - Start work on CCR design

Rui Li

  Previous two weeks (Mar 6-Mar 17)
    - JLEIC: Continue estimation of single-bunch instability effects
    - JLEIC: Start estimation of coupled-bunch instability effects based
      on collected parameters
    - ADMIN: Continue reading, commenting on Cheng-Ying's dissertation
    - ADMIN: Prep for Mar 20-21 travel to Va Tech for Chang-Ying's defense
  Next two weeks (Mar 20-Mar 31)
    - ADMIN: PhD Defense for Cheng-Ying (Mon-Tue at Virginia Tech)
    - JLEIC: Prepare slides and present status on instability estimates
      for R&D meeting
    - JLEIC: Update impedance parameters/estimations from engineering input
    - JLEIC: Prep talk for Apr 3-5 collaboration meeting

Ed Nissen

  Previous two weeks (Mar 6-Mar 17)
    - JLEIC: Collider, Guinea pig beam-beam simulations for cross-code comparison
    - JLEIC: Booster, Work on trying to get injection simulation working in
      Synergia
    - JLEIC: Booster, Start running space charge simulations using new
      parameter set from Todd; shift to sims at midpoint and extraction
      to make progress
  Next two weeks (Mar 20-Mar 31)
    - JLEIC: Continue space charge simulations with new parameter set,
      continuing middle and high energy and fixing injection parameter sets
    - JLEIC: Start documenting beam-beam and space charge simulation work

Chris Tennant

  Previous two weeks (Mar 6-Mar 17)
    - JLEIC Cooler: S2E analysis complete for single-pass ERL cooler
    - Organize and write tech note of results thus far (JLAB-TN-17-009)
  Next two weeks (Mar 20-Mar 31)
    - JLEIC Cooler: Translate Dave Douglas's emittance exchange to elegant and
      begin pushing particles
    - JLEIC Cooler: Start circulator cooler ring (CCR) simulation
      efforts (details to be determined in next meeting)
    - ADMIN: Begin ERL17 outline / organize thoughts

Randy Gamage

  Previous two weeks (Mar 6-Mar 17)
    - JLEIC: Continue BLonD simulations of debunch/rebunch with impedance
    - JLEIC: Continue Longitudinal impedance reading, calculations
    - JLEIC: Continue writing outlines of initial dissertation chapters
  Next two weeks (Mar 20-Mar 31)
    - JLEIC: Continue writing outlines of initial dissertation chapters,
      impedance calculations and theory
    - JLEIC: Figure out BLonD simulation bug (non-periodicity) and
      simulate coasting beam uwave instability, compare to theory



Accelerator R and D - Y. Zhang



Computational Physics - Y. Roblin



Diagnostic Development - K. Jordan