Difference between revisions of "April 15, 2008 Calorimetry"
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# Review Options for Working Group Meeting Time | # Review Options for Working Group Meeting Time | ||
| + | # Calibration Update / Discussion (Athens) | ||
| + | #* Goals for calibration | ||
| + | #* Deployment in various subsystems | ||
| + | # FCAL Update | ||
| + | #* A few plots that show [http://dustbunny.physics.indiana.edu/~mikornic/FADC/ typical FADC response] and time resolution that migh be achieved (Mihajlo) | ||
| + | # BCAL Update | ||
| + | #* Reanalysis of timing resolution from cosmics ([[Media:talk080415.pdf]]) - Andrei/Irina | ||
| + | # SiPM gain non-uniformities and energy resolution [http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=1012] (Richard) | ||
# [[SensL SiPMs | SiPMs]] | # [[SensL SiPMs | SiPMs]] | ||
| − | #* Phone conference yesterday. Divided shipments of 1 mm2 A20HD and A35HD and 3 mm2 A20HD units shipped to UofR and JLab. 3mm2 A35HD units delayed by 4-6 weeks. | + | #* Phone conference yesterday. Divided shipments of 1 mm2 A20HD and A35HD and 3 mm2 A20HD units shipped to UofR and JLab. 3mm2 A35HD units delayed by 4-6 weeks. Testing to be conducted upon receipt: |
| − | + | ||
#* UR tests | #* UR tests | ||
#*# IV curves | #*# IV curves | ||
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# Review of Action Item Tracker | # Review of Action Item Tracker | ||
#* Fabrication plan and QA /visit to Alberta? | #* Fabrication plan and QA /visit to Alberta? | ||
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# Any other business | # Any other business | ||
=Minutes= | =Minutes= | ||
Revision as of 10:19, 15 April 2008
Connection
- The meeting will be held at 10:30 am ET
- Phone:
- +1-800-377-8846 : US
- +1-888-276-7715 : Canada
- +1-302-709-8424 : International
- then enter participant code: 39527048# (remember the "#")
Reference Documents
- Previous minutes: March 21, 2008 Calorimetry
- Schedule, Tracker and Drawings (gluex pass)
- Schedule
Tentative Agenda
- Review Options for Working Group Meeting Time
- Calibration Update / Discussion (Athens)
- Goals for calibration
- Deployment in various subsystems
- FCAL Update
- A few plots that show typical FADC response and time resolution that migh be achieved (Mihajlo)
- BCAL Update
- Reanalysis of timing resolution from cosmics (Media:talk080415.pdf) - Andrei/Irina
- SiPM gain non-uniformities and energy resolution [1] (Richard)
- SiPMs
- Phone conference yesterday. Divided shipments of 1 mm2 A20HD and A35HD and 3 mm2 A20HD units shipped to UofR and JLab. 3mm2 A35HD units delayed by 4-6 weeks. Testing to be conducted upon receipt:
- UR tests
- IV curves
- Scanning SiPMs for uniformity. Current illumination is 1mm diameter, but improving setup to 0.25 mm diameter to allow for finer scans.
- Use coupling to fiber array to measure light yield and normalized to the number of photoelectrons. [Array is about 2x1.8x25 cm3. On one side the fibers are flared out and coupled to a Winston Cone guide.
- JLab tests, use optical setup using LEDs
- IV curve
- Linearity of response
- Relative gain
- Dark rate
- Timing characteristics. [Notes from George: timing response of newer glass arrays show rise times of about 10 ns, and contained in a 70-75]
- Later, not in initial tests: temperature dependence of units.
- Fiber Specifications
- Response of Kuraray and St. Gobain to the request to JLab sources sought / do we need more samples?
- Summary of fiber spectra analysis (Alex) [2]
- How to specify a) Fiber color/spectrum and b) light output
- JLab Tests (Carl)
- Review of Action Item Tracker
- Fabrication plan and QA /visit to Alberta?
- Any other business
