[Halld-jlab] Hall D Staff Meeting Notes, April 27, 2020

[Mark Ito]

Folks,

Please find the notes here 
<https://halldweb.jlab.org/wiki-private/index.php/Hall_D_Staff_Meeting,_April_27,_2020> 
and below.

   -- Mark


  Hall D Staff Meeting, April 27, 2020

 From Gluex PRIVATE Wiki

Present: Fernando Barbosa, Eugene Chudakov (chair), Mark Dalton, 
Alexandre Deur, Hovanes Egiyan, Sergey Furletov, Mark Ito, Igal Jaegle, 
Keigo Mizutani, Lubomir Pentchev, Patrizia Rossi, Elton Smith, Sascha 
Somov, Simon Taylor, Tim Whitlatch, Beni Zihlmann


    Announcements, Eugene

  * Training will be offered for engineers
  * Return to work being discussed, PPE requirements being discussed
  * PAC has shifted to August 10-14. Proposals due June 22.
  * New hires postponed. Alexander Austregesilo still with CMU.


    Announcements, Patrizia

  * EIC mini-review for CD1 will be held Sep.-Oct., full review in January


    Reports, Other Announcements, Status Updates

  * Sergey: RAID system fixed
  * Sascha: inspected crystals from SICCAS. They look good. Invoice can
    be paid and work on second batch started. Jane did good job with
    pre-selection in Shanghai
  * Elton received 11 pages of comments on NIM paper. All text comments,
    save those that need discussion, dealt with. Turning to comments on
    figures.
  * Beni reported that the monitoring launch on batch 4 of recent data
    complete. Batch 5 underway.
  * Sascha: PrimEx processing almost ready. Change implemented to
    require both ADC and TDC hits for tagger counters.
  * PAC proposals:
      o Alexandre: GDH proposal folks waiting on assessment from
        reviewers. Discussion held on how to address comments from
        meeting. Mark D. is streamlining the proposal. Alexandre
        extending simulations to lower energy range to overlap previous
        data. Discussing impact with theorists.
      o Elton: Rory is managing document for CPP jeopardy. Writing
        assignments made. On NPP: message from Matt Shepherd says we
        need proposal to collaboration by May 6. Group working to
        address comments from Barry Ritchie on backgrounds. Will
        estimate relative level of some backgrounds using PrimEx single
        π^0 result.
      o Eugene: Matt working on GlueX jeopardy.
  * Eugene: Justin asked about magnetic field accuracy and DIRC
    resolution. Eugene look at scheme to correct with multipoles tied to
    measurements in Hall
      o Simon: magnetic field had been excluded from DIRC volume in MC.
        Fixed now. Still residual asymmetry between charge species.
        Could be due to inaccuracies in magnetic field map.
      o Lubomir: including hit from GEM should improve resolution
  * Eugene: constant term in calorimeter resolution quoted in NIM paper
    at 4%, rather high
      o Elton: for BCAL due to averaging over angles, for FCAL:
        measurement over small energy range makes separation of constant
        term from stochastic term difficult
  * Sascha: SRC readiness review on May 7. Lubomir is PDL. Need to
    replace all active bases for CompCal.
      o Fernando discussed bases with Chris Cuevas. May need new design
        to accommodate changes from Vladimir Popov.
  * Tim on technical crew work:
      o Reviewing procedures, e.g., installing and removing mirror
        boxes, tagger vacuum window.
      o Work on DIRC electronics air cooling scheme.
      o More work on planning for bringing up the detector
      o Training
  * Fernando on electronics team activities:
      o Chris Stanislav working on boards for streaming read-out of
        flash 125 boards
      o Fernando in contact with CAEN on FCAL upgrade HV
  * Sergey: working on LDRD on FPGAs and event reduction for streaming
    read-out. Applications for EIC and Solid. Pre-proposal submitted.
    Full proposal due in May.
      o Beni asked about FPGA heat dissipation. FPGAs will be in
        external crate connected by optical fiber to data source.
        Cooling can be addressed with this configuration.
  * Beni asked about schedule for return when/if Governor's stay-at-home
    order expires June 10. No clear answer yet.
  * Sascha asked about summer students this year. No clear answer yet.

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