Difference between revisions of "JEF meeting, September 27, 2019"

From GlueXWiki
Jump to: navigation, search
(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...")
 
(Minutes)
 
Line 27: Line 27:
  
 
=Minutes=
 
=Minutes=
 +
Attendees:  Josh, Vlad B., Susan S., Liping G., Sascha S., S.T.
 +
*Vlad B. has been working on a light yield test stand in the Hall C NPS lab/cleanroom
 +
** Evaluated 460 SICCAS crystals, rejected almost 50 that passed visual inspection
 +
** Using weak uCi Na22 source -- Sascha ordered 10 uCi source
 +
** Plan is to measure 10-20 crystal's light yield along length using linear translation stand (~$300)
 +
** Plan is to evaluate all new crystals as they come to lab in November, compare with Shanghai Ceramic Institute's light yield numbers
 +
** Part of multi-level crystal evaluation scheme (crystal size, visual inspection, transmittance, light yield with and without light guide...)
 +
* Plan is for fabrication of modules to take place in TEDF in fenced-off area
 +
* 12 crystal test setup for use in hall after pair spectrometer is under construction
 +
* Light guide material, cookie material still need to be finalized
 +
* Stress testing of assembly planned/in progress
 +
* Light monitoring system:  12 fibers? design in progress
 +
* V. Popov is working on divider design, 2+ new versions for testing during upcoming run

Latest revision as of 14:03, 30 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

Light Yield Setup

FCAL-II update: status and plans

Minutes

Attendees: Josh, Vlad B., Susan S., Liping G., Sascha S., S.T.

  • Vlad B. has been working on a light yield test stand in the Hall C NPS lab/cleanroom
    • Evaluated 460 SICCAS crystals, rejected almost 50 that passed visual inspection
    • Using weak uCi Na22 source -- Sascha ordered 10 uCi source
    • Plan is to measure 10-20 crystal's light yield along length using linear translation stand (~$300)
    • Plan is to evaluate all new crystals as they come to lab in November, compare with Shanghai Ceramic Institute's light yield numbers
    • Part of multi-level crystal evaluation scheme (crystal size, visual inspection, transmittance, light yield with and without light guide...)
  • Plan is for fabrication of modules to take place in TEDF in fenced-off area
  • 12 crystal test setup for use in hall after pair spectrometer is under construction
  • Light guide material, cookie material still need to be finalized
  • Stress testing of assembly planned/in progress
  • Light monitoring system: 12 fibers? design in progress
  • V. Popov is working on divider design, 2+ new versions for testing during upcoming run