Difference between revisions of "Mar 19, 2009 Calorimetry"
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## [[Kuraray Fibre Tests| Kuraray Fibre Tests - Regina]] | ## [[Kuraray Fibre Tests| Kuraray Fibre Tests - Regina]] | ||
# Cooling of BCAL Readout | # Cooling of BCAL Readout | ||
| − | ## | + | ## SiPMs: Must operate at ~ 5 degC. Delta_G/G 1/Delta_T (% per deg C) |
| + | ##* DESY Seminar Garutti: MEPHI/Pulsar -1.7%/degC, Delta_Q/Q 1/Delta_T = -4.5%/degC (Q = Gain*PDE) | ||
| + | ##* Carl: SensL A20L, Delta_amplitude/amplitude -2%/degC | ||
| + | ##* Hamamatsu catalog: S10362-11-025U/C: -1.9%/degC | ||
| + | ##* Richard: Photonique: -1%/degC | ||
| + | ##* Lightfoot: SensL: -0.9 %/degC | ||
| + | ## APDs: Can operate at room temperature ~ 20 degC. Delta_G/G 1/Delta_T | ||
| + | ##* Atoain Table 2: API 630-70-74-510: -3%/degC | ||
| + | ##* Atoian Table 2: RMD S1315: -3%/degC | ||
| + | ##* Atoian Table 2: EG&G C30703E: -4%/degC | ||
| + | ##* Atoian Table 2: Hamamatsu S8664-1010N: -4.5%/degC | ||
| + | ## Goals? | ||
| + | ##* For a 5% gain stability need temp stabilization ~ 1 degC. | ||
| + | ##* Note: Hall B stabilization of PbW04 Inner calorimeter with APD readout spec was 0.1degC (achieved 0.02degC) | ||
# Simulations | # Simulations | ||
# Review of Action Items | # Review of Action Items | ||
=Minutes= | =Minutes= | ||
Revision as of 15:06, 19 March 2009
Teleconference Time: 4:00 p.m. EST
- Phone:
- +1-800-377-8846 : US
- +1-888-276-7715 : Canada
- +1-302-709-8424 : International
- then enter participant code: 39527048# (remember the "#")
Contents
Items for followup from previous meeting
- Resolution studies (Blake)
- Develop criteria for evaluating resolution studies
- Study impact of inactive material at the end of BCAL on acceptance.
- Check what configuration (thresholds, step sizes, stack? parameters for secondaries, etc) is being used for the Hall D simulations (Regina)
- Review options for import/export to Chile (loans, donations, transfers, etc.)
- From stand-alone MC, or previous notes, collect the distribution of photons expected for numbers of photons for various showers (especially at low energies, e.g. 50 MeV - 200 MeV) and typicall positions (i.e angles) along the calorimeter. (Andrei).
Documents to Review
Tentative Agenda
- Announcements
- USM receives major grant, which includes substantial support for Hall D hardware testing as part of the major detector lab instrumentation funding.
- FCAL Update
- Note from Matt (on travel): As for progress on my end, I have 3/4 of a technical note finished on implementation of the BCAL electronics threshold in software. I hope to finish that off by next week and circulate it. You can put me on the agenda for the next calorimetry meeting to discuss both the threshold and also implementation of dark noise in the simulation.
- BCAL Update
- Preparations for construction
- Kuraray Fibre Tests - Regina
- Cooling of BCAL Readout
- SiPMs: Must operate at ~ 5 degC. Delta_G/G 1/Delta_T (% per deg C)
- DESY Seminar Garutti: MEPHI/Pulsar -1.7%/degC, Delta_Q/Q 1/Delta_T = -4.5%/degC (Q = Gain*PDE)
- Carl: SensL A20L, Delta_amplitude/amplitude -2%/degC
- Hamamatsu catalog: S10362-11-025U/C: -1.9%/degC
- Richard: Photonique: -1%/degC
- Lightfoot: SensL: -0.9 %/degC
- APDs: Can operate at room temperature ~ 20 degC. Delta_G/G 1/Delta_T
- Atoain Table 2: API 630-70-74-510: -3%/degC
- Atoian Table 2: RMD S1315: -3%/degC
- Atoian Table 2: EG&G C30703E: -4%/degC
- Atoian Table 2: Hamamatsu S8664-1010N: -4.5%/degC
- Goals?
- For a 5% gain stability need temp stabilization ~ 1 degC.
- Note: Hall B stabilization of PbW04 Inner calorimeter with APD readout spec was 0.1degC (achieved 0.02degC)
- SiPMs: Must operate at ~ 5 degC. Delta_G/G 1/Delta_T (% per deg C)
- Simulations
- Review of Action Items
