Difference between revisions of "Mar 17, 2011 SiPM Electrical and Cooling"
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# Action Items | # Action Items | ||
# Schedule, reporting, and manpower (Elton) | # Schedule, reporting, and manpower (Elton) | ||
| + | #* Updated evms table | ||
# [[Test Setup for SiPMs | First article testing]] (Carl and Yi) | # [[Test Setup for SiPMs | First article testing]] (Carl and Yi) | ||
#* [http://www.jlab.org/~yqiang/halld/SiPM/first_article/Update_20110317.pptx Update_20110317] | #* [http://www.jlab.org/~yqiang/halld/SiPM/first_article/Update_20110317.pptx Update_20110317] | ||
| + | #* 27 units out of 80 have been tested. | ||
| + | #* Uniformity is very good. Dark rate is about 1 MHz/tile. A single tile has a high dark rate of 1MHz. | ||
| + | #* Need to prepare measurements in a magnetic field. Will coordinate with Tom Carstens for testing with coil 3 in test lab. | ||
| + | #* Carl mentioned that he thought the pins of the LED might be magnetic. This should be checked | ||
# Mechanical cooling (Jim) | # Mechanical cooling (Jim) | ||
#* Review status of drawings for prototype (Chuck) | #* Review status of drawings for prototype (Chuck) | ||
| + | #* All but two drawings are signed, the remaining two should be completed tomorrow. Prototype will go out for construction early next week. | ||
# Temperature compensation (Jack) | # Temperature compensation (Jack) | ||
| + | #* Jack is setting up a dark box for testing his prototype. | ||
# Preamp-summing (Fernando) | # Preamp-summing (Fernando) | ||
| + | #* Layout for a single sum section was completed. After duplicating for the rest of the board, the step file will be passed on to Jim to incorporate into the mechanical model. | ||
# Discussion | # Discussion | ||
Revision as of 17:31, 17 March 2011
References
- Files for discussion
- Hall D BCAL Readout Mechanical Concept (Jim Fochtman)
- Dynamic Range (See section 6 under simulations)
Action Items from previous meetings
Tentative Agenda
- Announcements
- Action Items
- Schedule, reporting, and manpower (Elton)
- First article testing (Carl and Yi)
- Mechanical cooling (Jim)
- Review status of drawings for prototype (Chuck)
- Temperature compensation (Jack)
- Preamp-summing (Fernando)
- Discussion
Minutes
Attending: Jim, Jack, Elton, Eugene, Carl, Yi, Fernando
- Announcements
- Action Items
- Schedule, reporting, and manpower (Elton)
- Updated evms table
- First article testing (Carl and Yi)
- Update_20110317
- 27 units out of 80 have been tested.
- Uniformity is very good. Dark rate is about 1 MHz/tile. A single tile has a high dark rate of 1MHz.
- Need to prepare measurements in a magnetic field. Will coordinate with Tom Carstens for testing with coil 3 in test lab.
- Carl mentioned that he thought the pins of the LED might be magnetic. This should be checked
- Mechanical cooling (Jim)
- Review status of drawings for prototype (Chuck)
- All but two drawings are signed, the remaining two should be completed tomorrow. Prototype will go out for construction early next week.
- Temperature compensation (Jack)
- Jack is setting up a dark box for testing his prototype.
- Preamp-summing (Fernando)
- Layout for a single sum section was completed. After duplicating for the rest of the board, the step file will be passed on to Jim to incorporate into the mechanical model.
- Discussion
