Revision as of 14:50, 3 May 2011

Teleconference Time: 11:00 a.m. EST

ESNET 8542553 and EVO session
JLab Phone: in CC F326 is 757-269-6337 (usual room)
JLab Phone in CC L207 is 757-269-7084
Phone in the Regina Videoconference Suite is 306-585-4204
Athens Phone: in Christina's office is 011-30-210-727-6947
Phone:
- +1-866-740-1260 : US and Canada
- +1-303-248-0285 : International
- then use participant code: 3421244# (the # is needed when using the phone)
- OR from www.readytalk.com type access code 3421244 into "join a meeting" without the # (you need java plugin)

Items for followup from previous meeting

~~Check if connections for cooling fluid can be bent radially outward to minimize affect on photons in the gap.~~ Yes. Simulations of impact needed.
Need to get a firm number for the power dissipation in the monitoring control board (in case it is placed inside the housing box)
SiPM: check cross talk between cells (Yi and Carl)

Announcements
Review of Action Items
USM update More Pictures
SiPM update
- Regina Preliminary Tests of Hamamatsu prototype
Electrical/cooling (Elton)
Geometry and light guides
1. New Geometry
2. Current geometry of light guide in Monte Carlo
Simulations

Attending:Beni, Yi, John, Tim, Elton, Eugene (JLab); Will (USM); Andrei (UofR); Christina (Athens)

Announcements
- SiPM First Article arrays have been approved
- Jlab 6 month shutdown begins in 2 weeks. They plan to connect the accelerator north stub with the tunnel to the tagger hall during this period.
Review of Action Items
Monitoring (Christina)
- MOU signatures should be completed soon
- Started this week to measure the light distribution in a 1x1x0.15 m3 plexiglass pane to be used to determine how many LEDs will be needed for the Fcal monitoring system.
- Hope to have some results to present next week at the collaboration meeting.
- Asked about light guides from USM. The guides are cut but not polished. Need the guides to check the space for boards and cables.
USM update More Pictures
SiPM update
- Regina Preliminary Tests of Hamamatsu prototype
Electrical/cooling (Elton)
Geometry and light guides
1. New Geometry
2. Current geometry of light guide in Monte Carlo
Simulations

@@ Line 34: / Line 34: @@
 = Minutes =
-''Attending:
+''Attending:Beni, Yi, John, Tim, Elton, Eugene (JLab); Will (USM); Andrei (UofR); Christina (Athens)
 # Announcements
+#* SiPM First Article arrays have been approved
+#* Jlab 6 month shutdown begins in 2 weeks. They plan to connect the accelerator north stub with the tunnel to the tagger hall during this period.
 # Review of Action Items
+# Monitoring (Christina)
+#* MOU signatures should be completed soon
+#* Started this week to measure the light distribution in a 1x1x0.15 m3 plexiglass pane to be used to determine how many LEDs will be needed for the Fcal monitoring system.
+#* Hope to have some results to present next week at the collaboration meeting.
+#* Asked about light guides from USM. The guides are cut but not polished. Need the guides to check the space for boards and cables.
 # [http://www.jlab.org/Hall-D/software/wiki/images/d/d1/BCalReadoutReport3May2011.pdf USM update] [http://www.jlab.org/Hall-D/software/wiki/images/8/8e/Morepictures.pdf More Pictures]
 # SiPM update