Difference between revisions of "JEF meeting, October 13, 2023"

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*'''Analysis/Simulation'''
 
*'''Analysis/Simulation'''
 
** [https://halldweb.jlab.org/wiki/images/6/6f/Gemtrd_Oct23.pdf First look at impact of GEMTRD] -- Simon
 
** [https://halldweb.jlab.org/wiki/images/6/6f/Gemtrd_Oct23.pdf First look at impact of GEMTRD] -- Simon
 +
 +
=Minutes=
 +
Attendees: Igal, Phil, Arshak, Sasha, Bill, Jon, Zisis, Axel, Olga, Jane, Malte, S.T.
 +
* Big news:  all lead glass blocks and crystals have been installed!
 +
** Re-torqued pressing plates, loctite applied
 +
** Final inspection of all installed modules:  some small issues with lead glass found (chips close to PMT, glass imperfections, cookie bubbles)
 +
*** Bad/broken PMTs being replaced
 +
** Cabling next:  will begin in December/January
 +
** Survey ongoing as of meeting, looks good so far
 +
* Inventory of 80 uninstalled crystals:  plan to make 5x5 TAC + 5x5 and 3x3 prototypes to put in PS test setup in Hall
 +
* 11 bad crystals packed, ready to be sent back to SICCAS
 +
* All signal cables from flash-ADCs to patch panel are ready
 +
* Short signal cables arriving (have 1360), students working on testing and labeling
 +
* Still missing many dark box cables
 +
* HV cables in production
 +
* LV cables have been ordered, not clear when will arrive
 +
* LV distribution boards: Sasha to meet with engineering group to finalize design
 +
* Have all optical fibers for LMS
 +
* Sasha met with detector support group to discuss their continuing involvement (soldering wires, testing PMT dividers, gluing fibers to crystals,...)
 +
* PMT divider testing to start: working on test setup (expect to go through ~30/day?) 
 +
* LMS installation also December/January
 +
** FCAL group working on plexiglas for lead glass LMS
 +
* 3 undergraduate students expected to go to DNP meeting in Hawaii
 +
* Simon presented a first look at the impact of adding a GEMTRD at the exit of the solenoid
 +
** Also added placeholder for inner-TOF detector

Latest revision as of 07:59, 16 October 2023

Meeting time and location:

Agenda

  • Preparation of parts for ECAL -- Sasha
    • - signal cables: 1360 short cables, all long cables are ready
    • - signal patch panels are ready [1]
    • - HV cables: 140 short cables (expect to receive most of them in 1-2 weeks), 36 long cables are in production
    • - HV distribution boards: have not yet been ordered (need to check multi-pin connector layout)
    • - LV cables: ordered, lead time unclear
    • - LV distribution boards: have not yet been ordered (need to finalize design, meeting with Chris and Stephanie on Monday next week)
    • - Optical fibers: received all
  • Ongoing projects -- Sasha, all
  • Testing of PMT dividers -- Sasha / Vlad
    • - Test setup is ready. About 30 dividers are ready for testing
  • Installation of the FCAL2 detector & integration to GlueX -- Sasha / Vlad / Hakob
  • Light monitoring system
    • Plastic caps have been glued to all fibers
  • Returning low-quality crystals to SICCAS -- Sasha
    • 11 crystals were wrapped and placed into the box; they are ready for shipment to SICCAS [9]

Minutes

Attendees: Igal, Phil, Arshak, Sasha, Bill, Jon, Zisis, Axel, Olga, Jane, Malte, S.T.

  • Big news: all lead glass blocks and crystals have been installed!
    • Re-torqued pressing plates, loctite applied
    • Final inspection of all installed modules: some small issues with lead glass found (chips close to PMT, glass imperfections, cookie bubbles)
      • Bad/broken PMTs being replaced
    • Cabling next: will begin in December/January
    • Survey ongoing as of meeting, looks good so far
  • Inventory of 80 uninstalled crystals: plan to make 5x5 TAC + 5x5 and 3x3 prototypes to put in PS test setup in Hall
  • 11 bad crystals packed, ready to be sent back to SICCAS
  • All signal cables from flash-ADCs to patch panel are ready
  • Short signal cables arriving (have 1360), students working on testing and labeling
  • Still missing many dark box cables
  • HV cables in production
  • LV cables have been ordered, not clear when will arrive
  • LV distribution boards: Sasha to meet with engineering group to finalize design
  • Have all optical fibers for LMS
  • Sasha met with detector support group to discuss their continuing involvement (soldering wires, testing PMT dividers, gluing fibers to crystals,...)
  • PMT divider testing to start: working on test setup (expect to go through ~30/day?)
  • LMS installation also December/January
    • FCAL group working on plexiglas for lead glass LMS
  • 3 undergraduate students expected to go to DNP meeting in Hawaii
  • Simon presented a first look at the impact of adding a GEMTRD at the exit of the solenoid
    • Also added placeholder for inner-TOF detector
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