2017-10-16

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Director - M. Spata
No report



Accelerator Physics - T. Satogata
Todd Satogata

   Previous two weeks (Oct 2-Oct 13)
     - OPS: BTeam (Oct 3), start ATLis cleanup
     - OPS: 12 GeV beam parameter meeting, notes to Alex
     - JLEIC: Prepare talk for BNL collaboration meeting
     - IPAC18: SPMS support work
     - JACOW: Team Meeting travel planning, organization
     - JLEIC: Continue assembling documents, pCDR meetings/planning
     - HALLD: Help McCaughan prepare slides for GlueX collab meet talk (Oct 12)
     - JLEIC: Collaboration Meeting (Oct 9-13)
     - ADMIN: Initiate annual review process
     - SICK: Oct 5
   Next two weeks (Oct 16-Oct 27)
     - OPS: BTeam (Oct 17), ATLis cleanup, ORFP update review
     - ADMIN: Peer review NIM paper (overdue)
     - IPAC18: Editorial board support, SPMS support work
     - JACOW: Team Meeting travel planning, organization
     - JLEIC: Continue assembling documents, pCDR meetings/planning
     - JLEIC: Booster injection scheme work (with Ed)
     - ADMIN: Weekly meetings with students (Randy, Eric)
     - ADMIN: Continue annual review process

Alex Bogacz

   Previous two weeks (Oct 2-Oct 13)
     - NUFACT: Write, finish paper for NUFACT'17 proceedings
     - USPAS: Continue work on lectures for "Practical Accelerator Design"
     - VACATION: Oct 6-13
   Next two weeks (Oct 16-Oct 27)
     - ADMIN: Peer review PRAB paper, annual review process
     - OPS: 12 GeV beam parameter meeting, notes
     - PERLE: End to end simulation development

David Douglas

   Previous two weeks (Oct 2-Oct 13)
     - JLEIC: continue with tilted solenoid: generate transfer matrix
       (numerical differentiation); start comparing to conventional
       modeling
     - JLEIC: continue responding to any results Chris develops on the simple
       CCR arcs and writing up the simple arc
     - ADMIN: talks for collaboration meeting, Bonn, and Daresbury
     - JLEIC: Gave talk on cooler test beds for EIC collaboration meeting
   Next two weeks (Oct 16-Oct 27)
     - ADMIN: Bonn travel, annual review process
     - JLEIC: continue with tilted solenoid: generate transfer matrix
       (numerical differentiation); start comparing to conventional
       modeling
     - JLEIC: continue responding to any results Chris develops on the
       simple CCR arcs and writing up the simple arc
     - JLEIC: write up kicker estimates to provide "straight merger"
       support.

Rui Li

   Previous two weeks (Oct 2-Oct 13)
     - VACATION: Oct 2-3
     - JLEIC: Prepare slides on collective effects for EIC collab meet
     - JLEIC: Collaboration Meeting (Oct 9-13)
   Next two weeks (Oct 16-Oct 27)
     - ADMIN: read/edit manuscript for Cheng-Ying
     - JLEIC: Follow up on collaboration meeting collective effects
     - JLEIC: Start documenting collective effects in tech note

Ed Nissen

   Previous two weeks (Oct 2-Oct 13)
     - JLEIC: figure out the best way of combatting injection
       synchrobetatron coupling and hopefully get a good injection
       simulation going. Reading up on injection methods.
     - JLEIC: Listening in on EIC collaboration meeting
     - VACATION: Oct 9
   Next two weeks (Oct 16-Oct 27)
     - JLEIC: Finish injection literature search
     - JLEIC: Improve injection scheme, coordinate parameters with Todd
     - VACATION: Oct 20

Chris Tennant

   Previous two weeks (Oct 2-Oct 13)
     - PERLE: microbunching analysis for first full turn of PERLE
       (it's bad)
     - ADMIN: read/edit manuscript for Cheng-Ying
     - CSR: read and work through PRSTAB on CSR published several
       weeks ago
     - JLEIC: continue to understand discrepancy between Bmad and
       other codes
     - JLEIC: microbunching analysis for multiple turns in CCR - looks
       good
   Next two weeks (Oct 16-Oct 27)
     - JLEIC: (hopefully) model CCR arc in Bmad with CSR shielding
     - JLEIC: next steps for e-cooler...?

Randy Gamage

   Previous two weeks (Oct 2-Oct 13)
     - Dissertation writing: Continue coasting beam chapter, tech note
   Next two weeks (Oct 16-Oct 27)
     - Dissertation writing: Hopefully coasting beam chapter, tech note



Accelerator R and D - Y. Zhang
Fanglei Lin

  • Continued optimization of detector region optics in the electron collider ring.
  • Prepared the presentation and attended EIC collaboration meeting at BNL.
  • Miscellaneous: attended CASA group meeting, attended the JLEIC R&D meeting, attended JLEIC parameter coordination meeting.

Vasiliy Morozov

  • Preparation for and participation in the EIC collaboration meeting: talks on polarization dynamics and interaction region design.
  • Geometry tagging LDRD: preparation and submission of a project data sheet.
  • Planning design and R&D activities.

Activities planned in the upcoming two weeks:

  • Preparation of a 45 min talk for the 2017 Accelerator R&D PI Exchange Meeting.
  • Preparation of a presentation for the ICFA Mini-Workshop on Dynamic Apertures of Circular Accelerators.
  • Preparation and submission of the final report on the 2017 LDRD geometry tagging project.
  • Presentation on the beam polarization design at a Wednesday detector meeting.
  • Planning collaboration with SLAC and BNL.

Amy Sy

  • Started preparing draft documentation for JLEIC ion source requirements. Met with Matt Poelker and others to discuss a path forward for the atomic beam polarized ion source SBIR with Muons, Inc. Will likely revise the SBIR proposal to focus on a D- ion source for JLEIC/as a polarimeter in CEBAF.
  • Data analysis for Geometry Tagging LDRD: continued generating plots of nuclear thickness and yield as a function of relative rigidity and A of nuclear remnant for detected particles through the ion downstream final focus triplet. Began plotting similar plots for the second data set using density-weighted distance data.
  • Attended the EIC Collaboration Meeting at BNL.

Yuhong Zhang

  • Attended EIC collaboration meeting at BNL, prepared/gave a talk
  • Completed a revision of staged cooling scheme



Computational Physics - Y. Roblin
No report



Diagnostic Development - K. Jordan
Kevin Jordan

  • Submitted requisition for $371k worth of waveguide for LERF project
  • Continued updating wiki
  • Waveguide review posted to https://wiki.jlab.org/lerf/index.php/Reviews
  • Working to finish Safety Assessment document, update schedule
  • Cryomodule shuffle has begun, first is to secure the vacuum on the 3 modules w/clean tent

Joe Gubeli

  • This week I finished up the LCLS-II waveguide layout. We had a review that went well. A list of the WG components were made and you generated a purchase requisition.
  • A little time was spent on cleaning up Lab 2.
  • Had a conservation with Bryce to talk about the upcoming experiment.

Mike Tiefenback

  • Working on JPos17 contributions plus I am reviewing the antiparallel acceleration mode with Wojtsekhowski. There may be options available to reduce exposure to C100 radiation damage.
  • Still trying to begin mass flow conversation, configure SLM expansion proposal for Arc 10, and get a start on characterizing/demonstrating optical resolution experimentally, prior to diagnostic installation. *Plus X-ray direct imaging.



LERF - S. Benson
October 2-13

  • Prepared presentation for EIC collaboration meeting
  • Attended EIC collaboration meeting.

October 16-27

  • Finish writing up papers for COOL17 and JPos17
  • Prepare presentation for EINN meeting
  • Finish Research plan for Cooler ring.