Difference between revisions of "GlueX Start Counter Meeting, March 10, 2011"

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(complete draft)
(notes as minutes)
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Talks can be deposited in the directory <code>/group/halld/www/halldweb1/html/talks/2011-1Q</code> 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.
 
Talks can be deposited in the directory <code>/group/halld/www/halldweb1/html/talks/2011-1Q</code> 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

Revision as of 09:41, 11 March 2011

Location, Time

Thursday, March 10, 2011
3:30 pm EST
JLab: CEBAF Center, Room F326/7

Agenda

  1. Announcements
  2. Review minutes from previous meeting: all
  3. Start Counter News: Werner, Lei, Eric
    • Plastic handling company info and costs
  4. MOU plans: all

Communication Information

Telephone

To connect by telephone:

  1. dial:
  2. enter access code followed by the # sign: 3421244#

Video Conferencing

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

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