Difference between revisions of "JEF meeting, July 15, 2022"

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(Created page with "Meeting time and location= *9:30 am EST (JLab time) remote only *Zoom meeting ID: [https://jlab-org.zoomgov.com/j/1610509142?pwd=STNZUmNoMElqbHRVdjlVb0ZzR1piZz09 161 050 9142]...")
 
(→‎Agenda)
 
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* Simulations/Analysis
 
* Simulations/Analysis
 
* Preparation of parts for FCAL2 modules -- Sasha
 
* Preparation of parts for FCAL2 modules -- Sasha
 +
**[https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/part_preparation.pdf Preparation of parts][https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/6_17_22/students1.jpg][https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/6_17_22/students2.jpg][https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/6_17_22/students3.jpg]
 +
*** Preshaping ESR foils (with the DSG)
 +
*** Wrapping crystals (with the DSG)
 +
*** Preparing Silicon cookies
 +
*** Module fabrication
 +
*** Cleaning brass assemblies
 +
*** Gluing light guides
 +
**[https://halldweb.jlab.org/detectors/fcal2/module_fabrication/wrapped/wrapped_crytur.pdf Wrapped CRYTUR crystals:] 654
 +
*** <span style="color:#FF0000"> All currently available </span> (consider to borrow some spares from NPS)
 
* Module fabrication  -- Sasha
 
* Module fabrication  -- Sasha
 +
** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/fcal_fabrication.pdf  Status of fabrication ]
 +
** Fabricated modules: <span style="color:#FF0000"> Total 944 </span>
 +
*** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication.pdf All SICCAS 561 SICCAS]
 +
*** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication_crytur.pdf 383 CRYTUR], Remaining: 294
 +
** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/6_17_22/clean_room.jpg Clean room EEL126]
 
* Light Monitoring System -- Arshak
 
* Light Monitoring System -- Arshak
 +
 +
=Minutes=
 +
Attendees: Bill, Sasha, Arshak, Jon, Axel, Susan, Igal, Liping, Jane, Olga, Azizah, S.T.
 +
* Simon reported that he has pushed a new version of the island algorithm to github
 +
* All available crystals have been wrapped
 +
* Sasha working on getting detector support group to work on gluing light guides
 +
* Olga brought jigs for making silicon cookies
 +
** Need to produce a few hundred more cookies but currently no time pressure (have enough for next 4 weeks)
 +
* Running short of brass assemblies (still have some QA issues -- some assemblies have fallen apart due to temperature control problems)
 +
* 50 crystal PR pending
 +
* Expect 100 new PMTs to arrive soon
 +
* Number of fabricated modules up to 944 as of meeting (should be able to finish fabrication of all available crystals by end of students' stay)
 +
* Arshak working on full-size plexiglas prototype for LMS
 +
** Surface partially covered with Gortex, maybe use reflective paint for the rest?
 +
** LED stability test ongoing (require stability at ~1% level)
 +
** Light transmission test upcoming

Latest revision as of 22:32, 21 July 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, Sasha, Arshak, Jon, Axel, Susan, Igal, Liping, Jane, Olga, Azizah, S.T.

  • Simon reported that he has pushed a new version of the island algorithm to github
  • All available crystals have been wrapped
  • Sasha working on getting detector support group to work on gluing light guides
  • Olga brought jigs for making silicon cookies
    • Need to produce a few hundred more cookies but currently no time pressure (have enough for next 4 weeks)
  • Running short of brass assemblies (still have some QA issues -- some assemblies have fallen apart due to temperature control problems)
  • 50 crystal PR pending
  • Expect 100 new PMTs to arrive soon
  • Number of fabricated modules up to 944 as of meeting (should be able to finish fabrication of all available crystals by end of students' stay)
  • Arshak working on full-size plexiglas prototype for LMS
    • Surface partially covered with Gortex, maybe use reflective paint for the rest?
    • LED stability test ongoing (require stability at ~1% level)
    • Light transmission test upcoming
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