Difference between revisions of "JEF meeting, December 17, 2021"

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:: - [https://halldweb.jlab.org/DocDB/0054/005409/001/glue-jefxd-igal-jaegle-17122021.pdf update] -- ig
 
:: - [https://halldweb.jlab.org/DocDB/0054/005409/001/glue-jefxd-igal-jaegle-17122021.pdf update] -- ig
 
* Other business
 
* Other business
 +
 +
=Minutes=
 +
Attendees: Igal,Tegan,Zisis,Arshak,Sasha,Jane,Liping,Azizah,S.T.
 +
* No news from SICCAS -- Sasha will send a reminder
 +
** Should plan to meet with Jlab management in January to discuss SICCAS progress and backup solution
 +
* Sasha coordinating with Patrizia to get involvement of detector support group to aid with module fabrication
 +
** Would like to have 2 technicians working more-or-less full time
 +
* Chris A. from Tim's group still continuing with brazing -- 12 strip assemblies ready to go by end of year
 +
* Expect will need to move module assembly space in March/April of next year
 +
* PMT delivery continues; Olga worked on checking dimensions
 +
* Axel S. taking over from Bill B. at GW as PI; Sasha working on paperwork for loan agreement with GWU for PMT divider tests
 +
** Also could consider outsourcing silicon cookie preparation
 +
* PMT divider for NPS ready to go; Chris S. will build 1-3 in January for bench tests. Maybe beam tests during upcoming PrimeX run?
 +
* Sasha setting up for mass module production
 +
** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/task_list/task_list_fcal2_fabrication_v2.pdf Task list] highlights steps where help will be needed and steps where help may be needed
 +
** Most delicate step is putting everything together and adjusting tension
 +
* Azizah gave an update about matching true photons to reconstructed photons from omega events
 +
* Tegan gave an update comparing efficiencies for 1 GeV shower reconstruction using Island and default algorithms for the FCAL2 geometry
 +
** Island algorithm shows dip near 4 degrees (roughly corresponding to the interface between the insert and the lead glass blocks) but both show dip near 5 degrees
 +
** Island algorithm slightly better for very small angles.
 +
* Igal gave an update on η→&pi0γγ showing the impact of applying a TOF veto to neutral showers
 +
** 2γ peaking background can be suppressed

Revision as of 12:31, 17 December 2021

Meeting time and location= 9:30 am EST (JLab time) Bluejeans only


Connection instructions

We are using BlueJeans Video/Audio conferencing. Our meeting ID number is 992533564. Click "Expand" for more details.

  • Make sure you have created a BlueJeans account via your JLab CUE account using this link:
  • If connecting via Web Browser: click this link (no passcode is needed):
  • If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"
  • If connecting via Polycom unit:
    • Dial 199.48.152.152 or bjn.vc
    • Enter meeting ID above

Agenda

  • SICCAS crystals
  • Module fabrication -- Sasha
    Task list
  • Light Monitoring System
  • COMCAL tests, TAC running, etc.
  • Data analysis
  • Simulations
- Sample preparation towards TMVA -- Azizah
- FCAL island algorithm comparison -- Tegan
- update -- ig
  • Other business

Minutes

Attendees: Igal,Tegan,Zisis,Arshak,Sasha,Jane,Liping,Azizah,S.T.

  • No news from SICCAS -- Sasha will send a reminder
    • Should plan to meet with Jlab management in January to discuss SICCAS progress and backup solution
  • Sasha coordinating with Patrizia to get involvement of detector support group to aid with module fabrication
    • Would like to have 2 technicians working more-or-less full time
  • Chris A. from Tim's group still continuing with brazing -- 12 strip assemblies ready to go by end of year
  • Expect will need to move module assembly space in March/April of next year
  • PMT delivery continues; Olga worked on checking dimensions
  • Axel S. taking over from Bill B. at GW as PI; Sasha working on paperwork for loan agreement with GWU for PMT divider tests
    • Also could consider outsourcing silicon cookie preparation
  • PMT divider for NPS ready to go; Chris S. will build 1-3 in January for bench tests. Maybe beam tests during upcoming PrimeX run?
  • Sasha setting up for mass module production
    • Task list highlights steps where help will be needed and steps where help may be needed
    • Most delicate step is putting everything together and adjusting tension
  • Azizah gave an update about matching true photons to reconstructed photons from omega events
  • Tegan gave an update comparing efficiencies for 1 GeV shower reconstruction using Island and default algorithms for the FCAL2 geometry
    • Island algorithm shows dip near 4 degrees (roughly corresponding to the interface between the insert and the lead glass blocks) but both show dip near 5 degrees
    • Island algorithm slightly better for very small angles.
  • Igal gave an update on η→&pi0γγ showing the impact of applying a TOF veto to neutral showers
    • 2γ peaking background can be suppressed
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