Difference between revisions of "Aug 5, 2010 Calorimetry"
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#* self-annealing = 2 (Measured in HallA irradiated samples, needs checking for cooled AmBe irradiated samples) | #* self-annealing = 2 (Measured in HallA irradiated samples, needs checking for cooled AmBe irradiated samples) | ||
#* cooling = 3 (For non-irradiated samples DR -> 0.3 DR between 20 and 5 deg C, needs checking for irradiated samples) | #* cooling = 3 (For non-irradiated samples DR -> 0.3 DR between 20 and 5 deg C, needs checking for irradiated samples) | ||
| − | #* DR/10 = 0.5, Study of degradation of threshold with dark rate. See [http://dustbunny.physics.indiana.edu/~mashephe/bcal_dkrate.pdf Matt's resolution calculations | + | #* DR/10 = 0.5, Study of degradation of threshold with dark rate. See [[Media:Plot threshold1.png]] with reference to [http://dustbunny.physics.indiana.edu/~mashephe/bcal_dkrate.pdf Matt's resolution calculations] |
#* temperature annealing = ? (additional annealing gains by raising temp ~ 80 deg C, needs checking) | #* temperature annealing = ? (additional annealing gains by raising temp ~ 80 deg C, needs checking) | ||
# Simulations | # Simulations | ||
Revision as of 09:56, 5 August 2010
Teleconference Time: 11:00 a.m. EDT
- ESNET and EVO session
- Phone in CC F326 is 757-269-6337
- Phone in the Regina Videoconference Suite is 306-585-4204
- Phone only if requested:
- +1-800-377-8846 : US
- +1-888-276-7715 : Canada
- +1-302-709-8424 : International
- then enter participant code: 77438230# (remember the "#"). Phone line by request only.
Contents
Items for followup from previous meeting(s)
- Monitoring
-
USM: Send drawings of guides to be machined (soon). Send 4 unpolished guides to UofR and 2 unpolished guides to Athens. -
Bcal: Testing to see if LED sources can be viewed by pmts on both sides of the module (UofR/UofA).
-
- Fcal
- Decision on rad hard detectors
- Ashot to send type of Hamamatsu pmt used for PRIMEX
- Elton and Ashot to meet and resolve any discrepancies between the simulations.
Discussion of Options for Radiation-Hard Insert
Options for Radiation-Hard Insert
Tentative Agenda
- Announcements
- Review of Action Items
- FCAL
- Construction status
- To shashlyk or not to shashlyk.
- BCAL
- Construction Status
- Cosmic-ray normalization runs
- Update on SiPM radiation hardness (Elton)
- Time @10^8 g/s for Dark rate to increase x10 is 3.25 years (10^7 s/year) x factors
- This corresponds to a fluence of 10^9 1MeV neutron eq/cm^2.
- factors = self-annealing x cooling x DR/10 x temperature annealing
- self-annealing = 2 (Measured in HallA irradiated samples, needs checking for cooled AmBe irradiated samples)
- cooling = 3 (For non-irradiated samples DR -> 0.3 DR between 20 and 5 deg C, needs checking for irradiated samples)
- DR/10 = 0.5, Study of degradation of threshold with dark rate. See Media:Plot threshold1.png with reference to Matt's resolution calculations
- temperature annealing = ? (additional annealing gains by raising temp ~ 80 deg C, needs checking)
- Simulations
- Other Updates
Minutes
Attendees:
