Oct 18, 2011 SiPM Electrical and Cooling
From GlueXWiki
Action Items from previous meetings
- Decide on cable connections for monitoring cable from Bcal wedge to patch panel. Consider electronics needed for pulsing system (Elton and Fernando)
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Work with Shaun to write up a procedure for substituting a sensor on one of the boards to be assembled. (Jack) -
Provide feedback to Fernando on his readout assembly schedule (Elton and Jim) - Check uniformity of LED source in black testing box
- Make a metal die to punch holes in cooling mat to ease assembly. (Nick and Jim) In progress
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Send P6 line numbers (and accounts) to Jim for purchase of the mechanical parts (Elton).
Tentative Agenda
- Announcements
- Action Items
- Schedule for production and testing (all)
- Schedule for production (Fernando and Jim)
- Schedule for SiPM assignment and jumper sheets
- mini-Bcal (Elton)
- SiPM production testing (Yi)
- Mechanical assembly (Jim)
- Temperature compensation (Jack)
- Electronic boards (Fernando and Chris)
- U-board puller?
- Light guide gluing setup (Scot)
Minutes
Attending: Elton, Jack, Chris, Nick, Jim, Ivan, Yi
- Announcements
- Action Items
- Schedule for production and testing (all)
- Schedule for electronics (Chris)
- Boards are in fabrication. Parts are ordered. PR for assembly has been awarded. Chris will send around the best estimate for arrival of boards (~mid Nov)
- Two first article boards will arrive first and need to be tested.
- Schedule for SiPM assignment and jumper sheets (Jack)
- Assignment and jumper settings for first article boards to be completed by next week.
- Include SiPMs on mini-Bcal into assignment groupings. Eliminate two scratched units.
- Schedule for mechanical parts (Jim)
- All drawings have been signed off
- Two PRs should be completed next week (one for laser/water jet cuts and one for mill pieces). Credit card order will be placed for the steel die
- Schedule for electronics (Chris)
- mini-Bcal (Elton)
- SiPM production testing (Yi and Ivan)
- Completed 80 SiPM sensors off the mini-Bcal. Units 286 and 1087 from the mini-Bcal were found to have scratches. Tomorrow will retest three units from the downstream row. Next, will test six "untested" SiPMs that were shipped from USM
- Dehumidification of test box
- A/C unit has been ordered
- Plan for duct work is ready and parts are off the shelf, which can be purchased when unit arrives.
- Mechanical assembly (Jim)
- Temperature compensation (Jack)
- Assignment and jumpers for first two boards will be done next week.
- Assignment of all remaining boards will be completed after the IEEE conference, first full week of Nov.
- Electronic boards (Fernando and Chris)
- U-board SiPM puller? Jim will work on an idea.
- Light guide gluing setup (Scot)Attending: