GlueX Start Counter Meeting, March 10, 2011
Contents
Location, Time
Thursday, March 10, 2011
3:30 pm EST
JLab: CEBAF Center, Room F326/7
Agenda
- Announcements
- Review minutes from previous meeting: all
- Start Counter News: Werner, Lei, Eric
- Plastic handling company info and costs
- MOU plans: all
Communication Information
Telephone
To connect by telephone:
- dial:
- US and Canada: (866)740-1260 (toll free)
- International: (303)248-0285 (toll call) or look up toll-free number at http://www.readytalk.com/intl
- enter access code followed by the # sign: 3421244#
Video Conferencing
- ESNet: 8542553
- EVO:
- Meeting URL: http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eaeDetvlv8a9asasIa
- Phone Bridge ID: 8 5557
Slides
Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2011-1Q
on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-1Q/ . You have to be a member of the "halld" Unix group to do this.
Minutes
Start Counter Meeting, 3/10 (minutes)
• copy notes into blog • present • edit • text • ship
Notes
werner lei mark sascha
got new scint plastic craft flooded same as bcal light guides
Werner and Eric looked at fast shaping amplifier looks good
tomorrow start sequence of measurements
idea relatively bad timing resolution shaping amplifier to improve time resolution
another sipm conversation with richard jones using 4 or 5 3x3 mm, sum the output Sasha or Fernando is going to order a bunch, 5 will go to FIU along with pre-amp cooling Peltier element , they are interesested in trying that out going to use ceramic base
two types from H, 25 micron or 50 micron. gain higher for 50 micron by a factor of three, price is the same , microscope will use 25 micron
ceramic vs surface mount 3x3 vs 1x1 what does BCAL use? 4x4, too slow summing after individual pre-amps?
350 ps 550 ps still separate RF buckets with single hit
3x3 SMD more than 9 , $180 per piece ceramic $200