Difference between revisions of "JEF meeting, August 16, 2024"

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=Agenda=
 
=Agenda=
 +
 
*'''Preparation of parts for ECAL''' -- Sasha  
 
*'''Preparation of parts for ECAL''' -- Sasha  
 +
** - HV long cable: Sammy and Mindy have to assemble 10 cables
 +
** - HV distribution boards  [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/08_09_2024/hv_board1.jpg][https://halldweb.jlab.org/detectors/fcal2/installation/meetings/08_09_2024/hv_board2.jpg]
 +
** - Fix front panel of two LV distribution boards, re-install the boards on the detector frame [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/08_09_2024/lv_board1.jpg]
 +
** - LED: Started testing the prototype of the LMS (need to make the detector room light tight)
 +
<!-- **  - [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/05_10_2024/May-10-2024-L.pdf Update from Laveen] -->
 
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Vlad / Hakob / Laveen  
 
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Vlad / Hakob / Laveen  
 +
** Report from students [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/06_28_2024/student_report_06_28_2024.pptx]
 +
** Installation of HV cables [https://logbooks.jlab.org/entry/4313492][https://halldweb.jlab.org/detectors/fcal2/installation/meetings/08_02_2024]
 +
::: - two remaining bundle of cables will be ready in about a week
 +
** Installation and testing cables and dividers [https://logbooks.jlab.org/entry/4314924]
 +
** Installation of long signal cables [https://logbooks.jlab.org/entry/4312667]
 +
** Installation LV patch panels and cables [https://logbooks.jlab.org/entry/4312759]
 +
** Installation of optical fibers [https://logbooks.jlab.org/entry/4311499]
 +
** [https://halldweb.jlab.org/wiki/index.php/FCAL_Installation Detector installation page]
 +
** [https://halldweb.jlab.org/detectors/fcal2/installation/safety_docs/Document_240716_195013-1.pdf Safety briefings]
 
* '''Students''' -- Sasha
 
* '''Students''' -- Sasha
 +
** - Expect one student from Wuhan, waiting for the US visa
 
* '''Beam tests with the PS'''
 
* '''Beam tests with the PS'''
 +
***  measure shower beam profile and reconstruction in the crystal/LG transition region
 +
***  (install prototype with 5x5 PbWO4 modules  + ? LG)
 
* '''Other hardware projects'''
 
* '''Other hardware projects'''
 +
** prototype of the ECAL veto counter (?)
 
*'''Analysis/Simulation'''
 
*'''Analysis/Simulation'''
−
** [[File:August-16-Status-Update.pdf]]
+
** [https://halldweb.jlab.org/wiki/images/1/19/August-16-Status-Update.pdf Close shower separation studies] -- Laveen
 
*'''New manpower for the upcoming run and data analysis''', -- Liping
 
*'''New manpower for the upcoming run and data analysis''', -- Liping
 +
 +
=Minutes=
 +
Attendees:  Bill, Laveen, Liping, Jane, Vlad, Sasha, Axel, Susan, Stjepan, S.T.
 +
* Front panel of two LV distribution boards needed to be fixed
 +
* 2 HV cable bundles each containing 9 cables are in Hall, 1 more bundle has been assembled
 +
* Waiting for HV distribution boards, due in ~2 weeks
 +
* 6 PMT divider layers remain to be installed
 +
** Found some common problems:  weak solder joints, bad connectors
 +
** One short cable needed to be swapped out
 +
** Added velcro band to connect chains (supporting cables) together
 +
* Laveen presented an update on 2-shower separation studies
 +
** Separation efficiency at small separation distances depends on energy asymmetry of two showers and total energy
 +
* Liping reported that a professor from the China University of Geosciences (Wuhan) is interested in joining GlueX to work on JEF physics
 +
* Vlad pointed out that we need to make sure that the test setup in one arm of the PS setup in the Hall D we have used in the past is restored
 +
** Could use this to measure shower profile + study lead glass-lead tungstate interface with small-scale prototype
 +
*** Will need hardware design/CAD drawings for box to contain crystals and lead glass blocks
 +
** Test veto prototype?  Thin scintillator paddles with wave-length shifting fibers
 +
** Sasha thinking about run plan for usage of this arm, will work on a wiki page

Latest revision as of 16:28, 16 August 2024

Meeting time and location:

Agenda

  • Preparation of parts for ECAL -- Sasha
    • - HV long cable: Sammy and Mindy have to assemble 10 cables
    • - HV distribution boards [1][2]
    • - Fix front panel of two LV distribution boards, re-install the boards on the detector frame [3]
    • - LED: Started testing the prototype of the LMS (need to make the detector room light tight)
  • Installation of the FCAL2 detector & integration to GlueX -- Sasha / Vlad / Hakob / Laveen
    • Report from students [4]
    • Installation of HV cables [5][6]
- two remaining bundle of cables will be ready in about a week
  • Students -- Sasha
    • - Expect one student from Wuhan, waiting for the US visa
  • Beam tests with the PS
      • measure shower beam profile and reconstruction in the crystal/LG transition region
      • (install prototype with 5x5 PbWO4 modules + ? LG)
  • Other hardware projects
    • prototype of the ECAL veto counter (?)
  • Analysis/Simulation
  • New manpower for the upcoming run and data analysis, -- Liping

Minutes

Attendees: Bill, Laveen, Liping, Jane, Vlad, Sasha, Axel, Susan, Stjepan, S.T.

  • Front panel of two LV distribution boards needed to be fixed
  • 2 HV cable bundles each containing 9 cables are in Hall, 1 more bundle has been assembled
  • Waiting for HV distribution boards, due in ~2 weeks
  • 6 PMT divider layers remain to be installed
    • Found some common problems: weak solder joints, bad connectors
    • One short cable needed to be swapped out
    • Added velcro band to connect chains (supporting cables) together
  • Laveen presented an update on 2-shower separation studies
    • Separation efficiency at small separation distances depends on energy asymmetry of two showers and total energy
  • Liping reported that a professor from the China University of Geosciences (Wuhan) is interested in joining GlueX to work on JEF physics
  • Vlad pointed out that we need to make sure that the test setup in one arm of the PS setup in the Hall D we have used in the past is restored
    • Could use this to measure shower profile + study lead glass-lead tungstate interface with small-scale prototype
      • Will need hardware design/CAD drawings for box to contain crystals and lead glass blocks
    • Test veto prototype? Thin scintillator paddles with wave-length shifting fibers
    • Sasha thinking about run plan for usage of this arm, will work on a wiki page
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