Difference between revisions of "Mar 17, 2011 SiPM Electrical and Cooling"
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* [http://www.jlab.org/~elton Files for discussion] | * [http://www.jlab.org/~elton Files for discussion] | ||
− | * [ | + | * [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1663 Hall D BCAL Readout Mechanical Concept] (Jim Fochtman) |
− | * [[May 27, 2010 Calorimetry | Dynamic Range]] (See section 6 under simulations) | + | * [[May 27, 2010 Calorimetry | Dynamic Range]] (See section 6 under simulations). See also [[Media:Npe Ngamma.pdf | Range of expected Number of pe and photons]] |
== Action Items from previous meetings == | == Action Items from previous meetings == | ||
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== Minutes == | == Minutes == | ||
+ | ''Attending: Jim, Jack, Elton, Eugene, Carl, Yi, Fernando | ||
+ | |||
+ | # Announcements | ||
+ | # Action Items | ||
+ | # Schedule, reporting, and manpower (Elton) | ||
+ | #* Updated evms table | ||
+ | # [[Test Setup for SiPMs | First article testing]] (Carl and Yi) | ||
+ | #* [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) | ||
+ | #* 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 |
Latest revision as of 17:12, 24 February 2017
References
- Files for discussion
- Hall D BCAL Readout Mechanical Concept (Jim Fochtman)
- Dynamic Range (See section 6 under simulations). See also Range of expected Number of pe and photons
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