Difference between revisions of "JEF meeting, April 29, 2022"

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* Preparation for mass production of FCAL2 modules -- Sasha
 
* Preparation for mass production of FCAL2 modules -- Sasha
 +
** [https://halldweb.jlab.org/detectors/fcal2/budget/students.xlsx Summer Students (2022) ]
 +
** DSG:
 +
*** 860 SICCAS foils preshaped. Need to preshape about 40 more, will switch to CRYTUR foils then
 +
*** Wrapping rate: about 20 crystals per week
 +
** Chris A continues to braze starps (have right now about 40 assemblies)
 +
** Igal continues cutting ESR, Tedlar, and Kapton foils
 +
** Silicon cookies (GWU)
 +
*** Olga is planning to come in the beginning of next week and bring some cookies (about 400), see her report
 
* Module fabrication  -- Sasha
 
* Module fabrication  -- Sasha
 +
**[https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication.pdf  Modules fabricated by Arshak and Sasha] [https://docs.google.com/document/d/1upI9M_RNR4qipzwg-SmxmzkqoCDU294x7Y3jT5M6DVY/edit (list on Google Drive)]  <span style="color:#FF0000"> Grand total 345  </span>
 +
** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/4_29_22/modules_in_tedf_4_29_22.jpg  Fabricated modules in TEDF ]
 +
** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/fcal_fabrication.pdf  Status of fabrication ]
 +
* Cabling of the FCAL insert -- Sasha
 +
** Meeting with Fernando, Tim, and Chris S. regarding LV cable distribution [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/4_29_22/insert_lv_cables.jpg]
 
* Light Monitoring System -- Arshak
 
* Light Monitoring System -- Arshak
 
* COMCAL tests, TAC running, etc. -- Sasha
 
* COMCAL tests, TAC running, etc. -- Sasha
 +
** [https://halldweb.jlab.org/detectors/fcal2/tac_prototype Design of the 3x3 calorimeter prototype (by Bobby B.)]. It will be installed on the TAC platform during the CPP run and used for other tests later.
 
* Data analysis
 
* Data analysis
 
* Simulations
 
* Simulations
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** DNP 2022 fall meeting: [https://tigers.phys.lsu.edu/dnp2022/ DNP 2022 web site]
 
** DNP 2022 fall meeting: [https://tigers.phys.lsu.edu/dnp2022/ DNP 2022 web site]
 
** Proposed ECT* (https://www.ectstar.eu/) workshop
 
** Proposed ECT* (https://www.ectstar.eu/) workshop
 +
 +
=Minutes=
 +
Attendees: Bill, Igal, Sasha, Zisis, Jane, Phil, Tegan, Arshak, Jon, Azizah, Susan, Tim W., Olga, Liping, Tim B., S.T.
 +
* Sasha presented a list of summer students and a potential schedule for their stays
 +
** Students need to register with Jlab system in advance
 +
** Lodging is available in the ResFac except for few weeks in June; students will be relocated to local extended-stay places/apartments/hotels for this gap period
 +
** In 2023 we expect to take apart and reassemble the FCAL to create FCAL2: student help during this time would be good as well
 +
* Total number of fabricated modules now up to 345
 +
* Lab will be relocated from TEDF to EEL soon, need to update safety documentation
 +
* A plan for strain relief of cables inside the FCAL dark room is in the works
 +
* Discussion of refurbishment of existing FCAL LG blocks if necessary is continuing
 +
* Arshak received the new plastic plate -- light transmission looks much better!  Still need machine shop to cut a hole in the center
 +
** Fiber connectors were 3D-printed
 +
* Design for 3x3 crystal prototype (to be placed on TAC platform in Hall D) ready to go
 +
* Fernando is ordering components and lemo connectors for PMT dividers
 +
* Tegan has been studying performance of Island algorithm for 2-cluster separation in CCAL using simulated particle gun events
 +
** Reconstruction efficiency appears to be low
 +
** log-weighting appears to be worse than default energy weighting for cluster position
 +
** Instead of throwing from the nominal target, throw downstream of FCAL?
 +
* Igal continues to work on &eta;&rarr;&pi;0&gamma;&gamma; events in MC and data
 +
** Less background in real data?  (not expected..)
 +
** Discussed handling bad blocks in fiducial region
 +
* Bastian Kubis will co-organize ECT* conference proposal with Susan
 +
** Will add Daniel Lersch and Igal as "young scientist" co-organizers

Latest revision as of 07:10, 2 May 2022

meeting time and location

  • 9:30 am EST (JLab time) remote only
  • Zoom meeting ID: 161 050 9142 Passcode: 004965

Agenda

Minutes

Attendees: Bill, Igal, Sasha, Zisis, Jane, Phil, Tegan, Arshak, Jon, Azizah, Susan, Tim W., Olga, Liping, Tim B., S.T.

  • Sasha presented a list of summer students and a potential schedule for their stays
    • Students need to register with Jlab system in advance
    • Lodging is available in the ResFac except for few weeks in June; students will be relocated to local extended-stay places/apartments/hotels for this gap period
    • In 2023 we expect to take apart and reassemble the FCAL to create FCAL2: student help during this time would be good as well
  • Total number of fabricated modules now up to 345
  • Lab will be relocated from TEDF to EEL soon, need to update safety documentation
  • A plan for strain relief of cables inside the FCAL dark room is in the works
  • Discussion of refurbishment of existing FCAL LG blocks if necessary is continuing
  • Arshak received the new plastic plate -- light transmission looks much better! Still need machine shop to cut a hole in the center
    • Fiber connectors were 3D-printed
  • Design for 3x3 crystal prototype (to be placed on TAC platform in Hall D) ready to go
  • Fernando is ordering components and lemo connectors for PMT dividers
  • Tegan has been studying performance of Island algorithm for 2-cluster separation in CCAL using simulated particle gun events
    • Reconstruction efficiency appears to be low
    • log-weighting appears to be worse than default energy weighting for cluster position
    • Instead of throwing from the nominal target, throw downstream of FCAL?
  • Igal continues to work on η→π0γγ events in MC and data
    • Less background in real data? (not expected..)
    • Discussed handling bad blocks in fiducial region
  • Bastian Kubis will co-organize ECT* conference proposal with Susan
    • Will add Daniel Lersch and Igal as "young scientist" co-organizers