Difference between revisions of "Jan 19, 2011 SiPM Electrical and Cooling"
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# Action Items | # Action Items | ||
# Schedule, reporting, and manpower (Elton) | # Schedule, reporting, and manpower (Elton) | ||
| + | #* Will review status next week | ||
# SiPM production testing (everyone) | # SiPM production testing (everyone) | ||
| − | # Mechanical assembly (Scot) | + | ## Optical (Carl) |
| + | ##* Photon intensity has been calibrated | ||
| + | ##* Electronics board can now be installed once LED is attached more securely. | ||
| + | ## Readout (Yi) | ||
| + | ##* Communication with all components | ||
| + | ##* Communication with PS is working, but interface is being finalized | ||
| + | ##* Missing a TTL->NIM translator (may need a NIM crate also). | ||
| + | # Mechanical assembly (Scot back from surgery) | ||
| + | #* Brought in the fixture for gluing light guides. Procedures and setup were discussed | ||
| + | #* Gluing tests can be done on the miniBcal with a thin sheet between guides and module. | ||
# Mechanical (Jim) | # Mechanical (Jim) | ||
| + | #* Cooling plate in shop removing shot leg of board to ease installation of cooling line | ||
| + | #* Vacuum pump needs to be hooked up. Dave Butler has one that can be used. | ||
# Mechanical drawings (Chuck) | # Mechanical drawings (Chuck) | ||
# Temperature compensation (Jack) | # Temperature compensation (Jack) | ||
| + | #* Design based on assuming Vop = Vbr + 1.4 V. | ||
| + | #* Adding test voltages to board. | ||
| + | #* First voltage to be used for checking pins before thermistor and SiPM are installed. Will installation of resistors. | ||
| + | #* Second voltage (below breakdown) to check expected voltages (temperature dependent) after assembly including SiPMs. | ||
# Preamp-summing (Fernando/Chris) | # Preamp-summing (Fernando/Chris) | ||
| + | #* "Bucket of Despair" | ||
| + | #* Square test boards in progress. One complete and in EEL 126 test setup. | ||
| + | #* Wedge boards waiting on Fernando to approve files before they go out for fabrication | ||
| + | #* New resistors from Jack have been added to parts list | ||
| + | #* U-boards have been ordered and should be received in the next few days. Tina has been checked out for soldering pins. Fixtures in progress to make assembly simpler. | ||
# SiPM testing (Ivan) | # SiPM testing (Ivan) | ||
| + | #* Waiting on signatures for laser operation. | ||
Latest revision as of 18:39, 19 January 2012
Action Items from previous meetings
-
Values of trim resistors for nominal operation to Chris (Jack). Chris to add them to the BOM.
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:Chris, Yi, John, Elton, Chuck, Jim, Scot, Ivan, Jack, Eugene
- Announcements
- Action Items
- Schedule, reporting, and manpower (Elton)
- Will review status next week
- SiPM production testing (everyone)
- Optical (Carl)
- Photon intensity has been calibrated
- Electronics board can now be installed once LED is attached more securely.
- Readout (Yi)
- Communication with all components
- Communication with PS is working, but interface is being finalized
- Missing a TTL->NIM translator (may need a NIM crate also).
- Optical (Carl)
- Mechanical assembly (Scot back from surgery)
- Brought in the fixture for gluing light guides. Procedures and setup were discussed
- Gluing tests can be done on the miniBcal with a thin sheet between guides and module.
- Mechanical (Jim)
- Cooling plate in shop removing shot leg of board to ease installation of cooling line
- Vacuum pump needs to be hooked up. Dave Butler has one that can be used.
- Mechanical drawings (Chuck)
- Temperature compensation (Jack)
- Design based on assuming Vop = Vbr + 1.4 V.
- Adding test voltages to board.
- First voltage to be used for checking pins before thermistor and SiPM are installed. Will installation of resistors.
- Second voltage (below breakdown) to check expected voltages (temperature dependent) after assembly including SiPMs.
- Preamp-summing (Fernando/Chris)
- "Bucket of Despair"
- Square test boards in progress. One complete and in EEL 126 test setup.
- Wedge boards waiting on Fernando to approve files before they go out for fabrication
- New resistors from Jack have been added to parts list
- U-boards have been ordered and should be received in the next few days. Tina has been checked out for soldering pins. Fixtures in progress to make assembly simpler.
- SiPM testing (Ivan)
- Waiting on signatures for laser operation.
