Difference between revisions of "JEF meeting, June 25, 2021"

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(Agenda)
(Minutes)
 
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* Module fabrication
 
* Module fabrication
 
* COMCAL tests, TAC running, etc. -- Sasha
 
* COMCAL tests, TAC running, etc. -- Sasha
[File:ccal_lms1.jpg]
+
:: LMS
 +
  [[File:ccal_lms2.jpg|100px]] [[File:ccal_lms1.jpg|100px]]
 +
:: Broken Strips
 +
 
 +
  [[File:ccal_rep4.jpg|100px]] [[File:ccal_rep2.jpg|100px]] [[File:ccal_rep3.jpg|100px]]
 +
 
 +
:: Divider installation
 +
 
 +
    [[File:ccal_rep1.jpg|100px]]
 +
 
* Data analysis
 
* Data analysis
 
* Simulations
 
* Simulations
 
* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5179 JEF abstract for DNP2021]
 
* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5179 JEF abstract for DNP2021]
 +
 +
=Minutes=
 +
Attendees: Arshak,Zisis,Jane,Sasha,Phil,Tim B.,Jon,Jared,Varun,Liping,Susan,Bill B.,Olga,S.T.
 +
* Sasha/Jane/Liping had phone meeting with SICCAS contact last Sunday
 +
** Contact reported progress regarding lead oxide powder:  SICCAS expect to receive new powder mid-July
 +
*** SICCAS will then grow some test samples (~2 week scale) to verify quality
 +
** SICCAS also worked on reusing ingots to grow new crystals
 +
** New batch by September/October?
 +
* Still substantial schedule risk for procuring all needed crystals by 2023
 +
** Discussed purchasing Crytur crystals as a backup plan
 +
** Possibly get SICCAS crystals from Hall-C (NPS plans to use Crytur crystals)
 +
* COMCAL refurbishment continues
 +
** All bundles for LMS are ready
 +
*** Sasha checked light transmission using black box setup, found good uniformity
 +
** All dividers checked, bottom row reinstalled
 +
** Reapplied optical grease for 33 modules
 +
** Found one broken brass strap, probably weakened due to corrosion arising from flux that was not fully cleaned off
 +
* FCAL-2 module construction to resume in July with UNCW student help
 +
** Maybe use FCAL-2 modules in COMCAL for PrimEx run in 2022
 +
* Plan to submit proposal to next year's PAC to ask for more time for JEF program
 +
** Need to redo simulations with smaller insert size

Latest revision as of 15:06, 25 June 2021

Meeting time and location= 9:00 am EST (JLab time) Bluejeans only


Connection instructions

We are using BlueJeans Video/Audio conferencing. Our meeting ID number is 992533564. Click "Expand" for more details.

  • Make sure you have created a BlueJeans account via your JLab CUE account using this link:
  • If connecting via Web Browser: click this link (no passcode is needed):
  • If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"
  • If connecting via Polycom unit:
    • Dial 199.48.152.152 or bjn.vc
    • Enter meeting ID above

Agenda

  • SICCAS crystals
  • Module fabrication
  • COMCAL tests, TAC running, etc. -- Sasha
LMS
 Ccal lms2.jpg Ccal lms1.jpg
Broken Strips
  Ccal rep4.jpg Ccal rep2.jpg Ccal rep3.jpg 
Divider installation
   Ccal rep1.jpg

Minutes

Attendees: Arshak,Zisis,Jane,Sasha,Phil,Tim B.,Jon,Jared,Varun,Liping,Susan,Bill B.,Olga,S.T.

  • Sasha/Jane/Liping had phone meeting with SICCAS contact last Sunday
    • Contact reported progress regarding lead oxide powder: SICCAS expect to receive new powder mid-July
      • SICCAS will then grow some test samples (~2 week scale) to verify quality
    • SICCAS also worked on reusing ingots to grow new crystals
    • New batch by September/October?
  • Still substantial schedule risk for procuring all needed crystals by 2023
    • Discussed purchasing Crytur crystals as a backup plan
    • Possibly get SICCAS crystals from Hall-C (NPS plans to use Crytur crystals)
  • COMCAL refurbishment continues
    • All bundles for LMS are ready
      • Sasha checked light transmission using black box setup, found good uniformity
    • All dividers checked, bottom row reinstalled
    • Reapplied optical grease for 33 modules
    • Found one broken brass strap, probably weakened due to corrosion arising from flux that was not fully cleaned off
  • FCAL-2 module construction to resume in July with UNCW student help
    • Maybe use FCAL-2 modules in COMCAL for PrimEx run in 2022
  • Plan to submit proposal to next year's PAC to ask for more time for JEF program
    • Need to redo simulations with smaller insert size