Aug 25, 2011 SiPM Electrical and Cooling
From GlueXWiki
Action Items from previous meetings
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Add hardware voltage limits to bias circuit (Jack)Investigation in progress - Investigate whether there is sufficient room to add an additional layer to the electronics at the inside of the Bcal (Fernando).
Tentative Agenda
- Announcements
- Action Items
- Schedule, reporting, and manpower (Elton)
- SiPM testing (everyone)
- Light source / optics
- Electronic boards
- Cabling
- Cooling plate
- Other?
- Mechanical (Jim)
- Mechanical drawings (Chuck)
- Geometry (Elton)
- Temperature compensation (Jack)
- Preamp-summing (Fernando)
- Granularity (Elton)
Minutes
Attending: Carl, Chris, Jim, Chuck, Yi, Elton, Jack, Eugene, Fernando
- Announcements
- Action Items
- Schedule, reporting, and manpower (Elton)
- Updated the EVMS
- SiPM testing (everyone)
- Light source / optics (Carl)
- Hall A has finished with the dark box
- Start to construct the reflective surface
- Move light source from original testing site to EEL and other required components
- Elton: Would like to keep the existing setup in tact for sample testing of individual SiPMs before production test setup is operational
- Need to purchase key elements
- Yi: Software for one QDC must be expanded to multiple boards
- Electronic boards
- Should add test points to measure the voltage bias on each SiPM (for the test setup but also on the Bcal module)
- Power supplies: Received chassis and PS for +/-5V. Expecting PS for bias soon. Hovanes will also use the supplies to begin programing slow controls
- The readout boards were sketched by Fernando on the white board. He plans to begin layout next week. Gain will be 66, as it was for 16-channel preamps for testing first articles.
- Expect readout boards the second week in October.
- Pulse generator is needed. Fernando will order.
- Cabling
- Cooling plate
- Other?
- Light source / optics (Carl)
- Mechanical (Jim)
- Mechanical drawings (Chuck)
- Geometry (Elton)
- Temperature compensation (Jack)
- Preamp-summing (Fernando)
- Granularity (Elton)