Feb 14, 2013 SiPM Electrical and Cooling
From GlueXWiki
Action Items from previous meetings
Tentative Agenda
- Announcements
- Action Items
- Light guides (Elton)
- Schedule for production and testing (all)
- SiPM production testing (Yi)
- Mechanical assembly (Jim)
- Temperature compensation (Jack)
- Electronic boards (Fernando and Chris)
Minutes
Attending: Elton, Tom, Tina, Chris, Nic, Fernando, Jim, Yi
- Announcements
- Action Items
- Light guides (Tina and Elton)
- Started gluing 12th module. Production is about 4 modules per week, as planned. But three persons have been working on it.
- Bobby was trained today to test the modules
- New worker from FEL (Keith) is being trained on gluing procedure
- The new fixture for keeping the gluing fixture aligned is working well
- Tomorrow we will take data with light guides glued on only one end
- SiPM production testing (Yi)
- Ivan has taken all the data to study the saturation of afterpulsing.
- He is back in Russia, but hopes to analyze the data while he is away.
- Controls
- Yi will be working on the control system for the Bcal
- Mechanical assembly (Jim and Tom)
- Jim clarified the procedure for preparing the cooling plates for gluing the cooling tubes and thermistor boards.
- The items are needed to begin the assembly of the readout package. Personnel from the FEL might be available to perform this task.
- Attachment of bar to top plate during assembly will require a jig to ensure alignment. Jim will design and have such a jig made.
- Temperature compensation (Jack)
- Electronic boards (Chris and Nic)
- Only 13 boards left to set the jumpers.
- The remaining boards required a new resistor value to be ordered. The resistors should arrive tomorrow.
- The boards should be completed by next Tuesday.
- After completing the boards, the SiPMs will need to be sorted in advance of the assembly process.
- The electronic preparations for the assembly should be complete in 2-3 weeks.