Difference between revisions of "JEF meeting, August 25, 2023"

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(Agenda)
(Agenda)
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** Tested fabricated modules using LMS [https://halldweb.jlab.org/wiki/index.php/Testing_ECAL_modules] - done  (need to update the wiki page)
 
** Tested fabricated modules using LMS [https://halldweb.jlab.org/wiki/index.php/Testing_ECAL_modules] - done  (need to update the wiki page)
 
** Cutting optical fibers and gluing plastic caps [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/06_23_2023/glue_caps.jpg], waiting for 7600 ft of optical fibers
 
** Cutting optical fibers and gluing plastic caps [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/06_23_2023/glue_caps.jpg], waiting for 7600 ft of optical fibers
** Work on refurbishing LG modules. About 60 modules have to be checked / fixed (rejected during installation)
+
** Work on refurbishing LG modules. About 80 modules have small imperfections and have to be fixed (rejected during installation)
 +
**::- Mindy is re-wrapping crystals (12 during last week). She also continues soldering wires to the PMT connectors
 
** [https://docs.google.com/presentation/d/1euIA49SszoQmSM4Lxu1OtZ8OfjltgwzXIbXo6TPEB3s/edit#slide=id.p Report from students]
 
** [https://docs.google.com/presentation/d/1euIA49SszoQmSM4Lxu1OtZ8OfjltgwzXIbXo6TPEB3s/edit#slide=id.p Report from students]
 
* '''[[Testing of PMT dividers]]''' -- Sasha / Vlad
 
* '''[[Testing of PMT dividers]]''' -- Sasha / Vlad

Revision as of 08:48, 25 August 2023

Meeting time and location:

Agenda

  • Preparation of parts for ECAL modules -- Sasha
    • Crystals:
      - Received 70 crystals from SICCAS. 66 have been pre-selected by Jane's group
      - Visual inspection: 4 dim crystals, 8 with many chips (consider to send them back to SICCAS) [1][2]
    • Received 1100 short signal cables [3]
    • Procurement parts for the LMS:
      - Waiting for 7,600 ft of optical fibers (August/September)
  • Module fabrication -- Sasha
    • All modules have been fabricated, checked, and inventorized (about 1610 modules in total)
  • Ongoing projects -- Sasha, all
    • Visual inspections of fabricated modules [4] - done
    • All crystals moved to Hall D[5] [6][7].
    • Tested, labeled, and bundled all 100 (+ 2 spares) [8] signal cables connected from the flash ADC to the patch panel [9] - done
    • Test and label 1100 short signal cables - ongoing
    • Tested fabricated modules using LMS [10] - done (need to update the wiki page)
    • Cutting optical fibers and gluing plastic caps [11], waiting for 7600 ft of optical fibers
    • Work on refurbishing LG modules. About 80 modules have small imperfections and have to be fixed (rejected during installation)
      - Mindy is re-wrapping crystals (12 during last week). She also continues soldering wires to the PMT connectors
    • Report from students
  • Testing of PMT dividers -- Sasha / Vlad
    • Received 10 dividers (first article) ! , going to test them during this week (Chris)
  • Proceedures
  • Installation of the FCAL2 detector & integration to GlueX -- Sasha / Arshak / Vlad / Hakob
  • Light monitoring system -- Arshak