Difference between revisions of "JEF meeting, August 30, 2019"

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(Created page with "Meeting time and location= 1:00 pm EST (JLab time) F228 =Connection instructions= <div class="toccolours mw-collapsible mw-collapsed"> We are using [https://cc.jlab.org/blue...")
 
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=Agenda=
 
=Agenda=
 
China trip report (Sasha)
 
China trip report (Sasha)
 +
 +
=Minutes=
 +
Attendees:  Sasha, Josh, Liping, Simon
 +
* Sasha, Liping and Zhenyu (Jane) visited the Shanghai Ceramic Institute
 +
** Institute looks good visually
 +
** The institute has 2 rooms for growing crystals
 +
*** Can grow 2 at time, takes about 3 weeks to grow 30 crystals
 +
*** Will operate 4 ovens for our job
 +
*** On schedule to deliver first crystals in November
 +
** Institute has test facility for light transmission and light yield with radioactive source
 +
*** Will compare our measurement to theirs
 +
** Plan is for Jane to work on QA (visual inspection,...) with the institute
 +
*** Working on plan with Rolf and Eugene for paying Wuhan -- service contract?
 +
* Need 2-3 FTEs for assembly,etc. of crystals -- potential for manpower from Yerevan?
 +
* Frame design for FCAL-II underway, progress on insert in global design, plan to stay with existing FCAL frame
 +
** Plan to meet with Tim in next 1-2 weeks
 +
* Small scale prototype for stacking and other tests
 +
** Josh is working on design for single-crystal assembly that will allow placing a set of 12 in a box for study with beam using the pair spectrometer
 +
** Some details still need to worked out
 +
*** Brass straps need to be thicker (25 micron -> 50 micron) or maybe make from stainless steel?
 +
*** Stress analysis, tests
 +
*** Light dimensions
 +
*** Cookies for crystal-light guide connection -- how much pressure is needed? what material?
 +
*** To glue or not to glue LG to PMT?  Probably glue.
 +
** Need to build more modules, but Josh first wants to bring first module "best guess design" to completion

Revision as of 15:03, 2 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

China trip report (Sasha)

Minutes

Attendees: Sasha, Josh, Liping, Simon

  • Sasha, Liping and Zhenyu (Jane) visited the Shanghai Ceramic Institute
    • Institute looks good visually
    • The institute has 2 rooms for growing crystals
      • Can grow 2 at time, takes about 3 weeks to grow 30 crystals
      • Will operate 4 ovens for our job
      • On schedule to deliver first crystals in November
    • Institute has test facility for light transmission and light yield with radioactive source
      • Will compare our measurement to theirs
    • Plan is for Jane to work on QA (visual inspection,...) with the institute
      • Working on plan with Rolf and Eugene for paying Wuhan -- service contract?
  • Need 2-3 FTEs for assembly,etc. of crystals -- potential for manpower from Yerevan?
  • Frame design for FCAL-II underway, progress on insert in global design, plan to stay with existing FCAL frame
    • Plan to meet with Tim in next 1-2 weeks
  • Small scale prototype for stacking and other tests
    • Josh is working on design for single-crystal assembly that will allow placing a set of 12 in a box for study with beam using the pair spectrometer
    • Some details still need to worked out
      • Brass straps need to be thicker (25 micron -> 50 micron) or maybe make from stainless steel?
      • Stress analysis, tests
      • Light dimensions
      • Cookies for crystal-light guide connection -- how much pressure is needed? what material?
      • To glue or not to glue LG to PMT? Probably glue.
    • Need to build more modules, but Josh first wants to bring first module "best guess design" to completion