Feb 9, 2011 SiPM Electrical and Cooling
From GlueXWiki
Action Items from previous meetings
- Populate interface cards to the ADC (Chris)
- Complete 3 remaining boards for SiPM testing (Chris)
- Determine if swapped bias pins was accidental or in design (Chris)
- Make a second SiPM extraction tool for USM (Jim and Scot)
Tentative Agenda
- Announcements
- Action Items
- Schedule, reporting, and manpower (Elton)
- SiPM production testing (everyone)
- Mechanical assembly (Scot)
- Mechanical (Jim)
- Mechanical drawings (Chuck)
- Temperature compensation (Jack)
- Preamp-summing (Fernando/Chris)
- SiPM testing (Ivan)
Minutes
Attending: Jack,, Carl, Scot, Chris, Yi, John, Elton, Jim, Eugene
- Announcements
- Action Items
- Schedule, reporting, and manpower (Elton)
- SiPM production testing (everyone)
- OSP (Carl)
- OSP submitted. Bert will take the next step
- Ordered micro-switches to interlock box with power supply
- Ordered anti-static straps, flash lights
- Scot: Added grounding wire for the support plate in the box. Discussion on where to attach. Suggestion to use the VME crate ground, but test with/without connection.
- Software (YI)
- Control software is ready
- Analysis software is advancing to use the JLab farm
- Hardware setup (Yi)
- Need additional low voltage cables
- Once complete, we will need to establish training for the setup
- Recheck light uniformity
- Carl: The light uniformity left-right is within 1%
- The top two rows are about 4% lower than the middle two
- Preamp 10 Ohm output resistor has been replaced by a 0.1 microF capacitor to eliminate the DC offset
- Temperature for tests
- Presently operating at 9 deg C
- Plan: test at one temperature first and then repeat at second temperature to establish temp dependence.
- OSP (Carl)
- Mechanical assembly (Scot)
- Mechanical (Jim)
- Mechanical drawings (Chuck)
- Temperature compensation (Jack)
- Preamp-summing (Fernando/Chris)
- SiPM testing (Ivan)