Difference between revisions of "Feb 11, 2010 Readout"
From GlueXWiki
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= Minutes = | = Minutes = | ||
− | Attending: | + | Attending: Fernando, Lubomir, Tim, Pedro, John, Eugene, Beni, Elton (JLab); Zisis, George, Andrei (UofR); Will (USM) |
+ | |||
+ | # Review of Action Items | ||
+ | # Update - USM | ||
+ | #* First tests of SiPMs (Serguei) | ||
+ | # SiPM - update | ||
+ | # Light guides | ||
+ | #* For reference: top = 2.525 cm, side =2.0 cm, bottom=2.4026 cm, cone to radius=1cm, Winston cone to radius=0.6cm (GlueX-doc-1077), efficiency=81%. | ||
+ | #* ''Preliminary'' results for collection efficiency for trapezoidal light guides (inner outside top geometry) with air gap: | ||
+ | #* Intput: top = 2.525 cm, side =2.0 cm, bottom=2.4026 cm, length = 8 cm | ||
+ | #* output: 1.2cm x 1.2 cm square | ||
+ | #* Ratio of input/output areas = 0.29 | ||
+ | #* 1 mm lucite transition piece: efficiency = 87%. | ||
+ | #* 1 mm air gap, efficiency = 45%. | ||
+ | # Geometry | ||
+ | # Discussion - MOU with USM |
Revision as of 14:39, 11 February 2010
Teleconference Time: 11:00 a.m. EST
- ESNET and EVO session
- Phone in CC F326 is 757-269-6337
- Phone:
- +1-800-377-8846 : US
- +1-888-276-7715 : Canada
- +1-302-709-8424 : International
- then enter participant code: 77438230# (remember the "#"). Phone connection only upon request.
Contents
Items for followup from previous meeting
- Testing of new cal modules to measure light output and determine the range of phoelectrons expected.
- Sensitivity to Hadronic radiation: Stepan to provide information on damage to SiPMs during NH3 pol target run. (Stepan)
- Detailed task list of everything that needs to be accomplished to flush out the use of SiPMs. (Elton, Fernando, Carl, Eugene...)
- Input/Decisions needed to finalize Bcal readout requirements (See also GlueX-doc-1373).
- Specify the normalization and dynamic range for the number of photons/GeV in showers
- Decide on specific grouping for SiPM sums
- Possibility of using air gap for SiPM coupling
- Finalize shapes of "Winston guides"
Documents to Review
Tentative Agenda
- Announcements
- Review of Action Items
- Update - USM
- First tests of SiPMs (Serguei)
- SiPM - update
- Light guides
- For reference: top = 2.525 cm, side =2.0 cm, bottom=2.4026 cm, cone to radius=1cm, Winston cone to radius=0.6cm (GlueX-doc-1077), efficiency=81%.
- Preliminary results for collection efficiency for trapezoidal light guides (inner outside top geometry) with air gap:
- Intput: top = 2.525 cm, side =2.0 cm, bottom=2.4026 cm, length = 8 cm
- output: 1.2cm x 1.2 cm square
- Ratio of input/output areas = 0.29
- 1 mm lucite transition piece: efficiency = 87%.
- 1 mm air gap, efficiency = 45%.
- Geometry
- Discussion - MOU with USM
Minutes
Attending: Fernando, Lubomir, Tim, Pedro, John, Eugene, Beni, Elton (JLab); Zisis, George, Andrei (UofR); Will (USM)
- Review of Action Items
- Update - USM
- First tests of SiPMs (Serguei)
- SiPM - update
- Light guides
- For reference: top = 2.525 cm, side =2.0 cm, bottom=2.4026 cm, cone to radius=1cm, Winston cone to radius=0.6cm (GlueX-doc-1077), efficiency=81%.
- Preliminary results for collection efficiency for trapezoidal light guides (inner outside top geometry) with air gap:
- Intput: top = 2.525 cm, side =2.0 cm, bottom=2.4026 cm, length = 8 cm
- output: 1.2cm x 1.2 cm square
- Ratio of input/output areas = 0.29
- 1 mm lucite transition piece: efficiency = 87%.
- 1 mm air gap, efficiency = 45%.
- Geometry
- Discussion - MOU with USM