Difference between revisions of "JEF meeting, February 28, 2020"

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(Created page with "Meeting time and location= 10:00 am EST (JLab time) CC-F226 =Connection instructions= <div class="toccolours mw-collapsible mw-collapsed"> We are using [https://cc.jlab.org/...")
 
 
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* Status of the crystal production (SICCAS)
 
* Status of the crystal production (SICCAS)
 
* [https://halldweb.jlab.org/wiki/index.php/Module_Design Preparation for module fabrication]
 
* [https://halldweb.jlab.org/wiki/index.php/Module_Design Preparation for module fabrication]
 +
 +
=Minutes=
 +
Attendees:  Josh, Arshak, VArun, Jon Z., Zisis, Sasha, Liping, Igal, Vlad B., Phil C.
 +
* SICCAS update:  crystals have not shipped yet, a phone conference is planned for Monday evening
 +
** new PR under discussion, idea to add Wuhan as subcontractor to take care of QA, but crystal specs would remain the same.
 +
*** would need DOE approval -- could take several months...
 +
** We have arranged with CUA to start with existing Hall C crystals and do a trade later
 +
*** Caveat:  NPS is planning assembly in the fall, and will need more than 200 SICCAS crystals
 +
* Box of ESR material arrived -- now have whole set
 +
* Brass flanges are on order
 +
* 400 PMTs have arrived
 +
* Light guide material:  no specs for Chinese vendor, go with Eljen as alternate vendor?
 +
** Studies with 18.8 mm vs 18 mm material hampered by fact that the materials are not exactly the same; nevertheless we will stick with the 18 mm standard size.
 +
* Working on loan agreement with UNCW so they can do studies with PMTS/dividers.
 +
* Safety documentation for clean room area has been submitted, iterating with safety officers.
 +
* mu-metal cylinders: PR was submitted, procurement dept. found a cheaper vendor, but will probably go with first vendor
 +
* 400 PMTs have arrived
 +
* Modified dividers for testing with COMCAL:  waiting for parts.  Windows of opportunity for installation during beam studies/maintenance days (usually Tuesdays).
 +
* Light Monitoring system:  use plexiglas sheets a la FCAL or individual light distribution?
 +
** Plan to do some studies with the plexiglas idea: light uniformity,...

Latest revision as of 16:39, 2 March 2020

Meeting time and location= 10:00 am EST (JLab time) CC-F226


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

Minutes

Attendees: Josh, Arshak, VArun, Jon Z., Zisis, Sasha, Liping, Igal, Vlad B., Phil C.

  • SICCAS update: crystals have not shipped yet, a phone conference is planned for Monday evening
    • new PR under discussion, idea to add Wuhan as subcontractor to take care of QA, but crystal specs would remain the same.
      • would need DOE approval -- could take several months...
    • We have arranged with CUA to start with existing Hall C crystals and do a trade later
      • Caveat: NPS is planning assembly in the fall, and will need more than 200 SICCAS crystals
  • Box of ESR material arrived -- now have whole set
  • Brass flanges are on order
  • 400 PMTs have arrived
  • Light guide material: no specs for Chinese vendor, go with Eljen as alternate vendor?
    • Studies with 18.8 mm vs 18 mm material hampered by fact that the materials are not exactly the same; nevertheless we will stick with the 18 mm standard size.
  • Working on loan agreement with UNCW so they can do studies with PMTS/dividers.
  • Safety documentation for clean room area has been submitted, iterating with safety officers.
  • mu-metal cylinders: PR was submitted, procurement dept. found a cheaper vendor, but will probably go with first vendor
  • 400 PMTs have arrived
  • Modified dividers for testing with COMCAL: waiting for parts. Windows of opportunity for installation during beam studies/maintenance days (usually Tuesdays).
  • Light Monitoring system: use plexiglas sheets a la FCAL or individual light distribution?
    • Plan to do some studies with the plexiglas idea: light uniformity,...