Difference between revisions of "Module fabrication"

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(Module Fabrication)
(Module Fabrication)
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:: - Time per module: 20 min
 
:: - Time per module: 20 min
  
* Glue light guide to the PMT
+
* Glue light guide to the PMT using UV glue
 
:: - Time per module: 10 min
 
:: - Time per module: 10 min
  

Revision as of 13:16, 22 April 2021


  • Checking crystals
Visual inspection: 5 min per crystal
Dimension measurement: 10 min per crystal
Transmission check: 20 min per crystal (Optional)
Measure light yield using radioactive source: 20 min per crystal (Optional)
Measure light yield using PS setup: 12 modules in the PS setup.
  • PMT checking
Diameter check


  • Preparation of silicon cookie
- Mix RTV625, remove bubbles
- Pour to the gluing fixture (prepare 36 cookies can order one more fixture)
- Set time: 1 day, full cure time: 4 - 5 days
- Time: 3 - 4 hours to load the fixture


Module Fabrication

  • Brazing straps
Time per module: 20 min
  • ESR shaping
- ESR cutting
- Shape in the oven (2 tools exist, 20 min per cycle]
- Time per module: 20 min
  • Glue light guide to the PMT using UV glue
- Time per module: 10 min
  • Crystal wrapping
- Cut ESR and Tedlar
- Wrap module
- Time per module: 20 min
  • Module fabrication
- Insert mu-metal shield
- Attach PMT housing, set tension screws
- Insert PMT with silicon cookies, set tension plate
- Time per module: 30 min


Total fabrication time: 1 hour 40 mnin per module
(~5 modules a day, 100 modules a month)