Difference between revisions of "JEF meeting, September 13, 2019"

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m (Minutes)
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=Minutes=
 
=Minutes=
Attendees:  Josh, Liping, Sascha, Simon
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Attendees:  Josh, Liping, Sascha, Simon, Zisis
 
* Josh has assembled one full prototype module, plan is to build ~10 more
 
* Josh has assembled one full prototype module, plan is to build ~10 more
 
** No issues so far with brazing or tension
 
** No issues so far with brazing or tension

Revision as of 14:19, 16 September 2019

Meeting time and location= 1:00 pm EST (JLab time) F228


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

FCAL-II update: status and plans

Minutes

Attendees: Josh, Liping, Sascha, Simon, Zisis

  • Josh has assembled one full prototype module, plan is to build ~10 more
    • No issues so far with brazing or tension
    • Waiting for soft-iron shields: 1020 steel, Tim will anneal
    • Waiting for light guide material to test with silicone cookies
      • Tim found 18 mm diameter acryllic rods
    • Plan to attach light guides to tubes with RTV
  • Design for box/frame for beam tests (12 modues at a time) ~ready
    • Will be able to accommodate different light guides
  • Need to order HV/signal cables for beam tests (Fernando)
  • Vlad Popov has been working on fine-tuning active base design
    • Stabilization of last dynode: use FET?
    • Add low-pass filter?
    • Would like 2-3 different versions to check before November run
  • We discussed space considerations: need a relatively clean area but not a full "clean room"
    • Space in TEDF has been identified, would like lock -- fenced off area?
    • 3 heavy duty shelves
  • Manpower: getting someone from Russia to help out even through U. Regina will be tricky
    • JLab detector support group can help out
    • Yerphi researcher (Arshak?) is interested in participating, will come for 3 months, possibly up to 6 months
    • Anatoly (who worked on Primex crystal assembly) is retired but wants to participate -- affiliate with UNCW?
    • CMU can do some fabrication, has machine shop
    • Need to identify work coordinator
  • Frame/assembly of FCAL-II in design stage
    • Some details need to be worked out in more detail: Light monitoring system, tungsten absorber in inner region, cooling system