Difference between revisions of "GlueX Start Counter Meeting, December 15, 2011"

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Talks can be deposited in the directory <code>/group/halld/www/halldweb1/html/talks/2011-4Q</code> on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-4Q/ . You have to be a member of the "halld" Unix group to put files in this directory.
 
Talks can be deposited in the directory <code>/group/halld/www/halldweb1/html/talks/2011-4Q</code> on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-4Q/ . You have to be a member of the "halld" Unix group to put files in this directory.
 +
 +
=Minutes=
 +
 +
New Note 27
 +
 +
eric, puneet, werner
 +
beni, mark
 +
 +
 +
 +
scintillators polishde, repolished
 +
two slightly better, others destroyued
 +
not happy
 +
look for other companies
 +
two companies in california
 +
mcneil, or mcneal  enterprises
 +
E&F plastics
 +
drawings sent to both, both say they can do it
 +
E&F want to mill out of single piece of scint
 +
$200 per
 +
sent a good and a bad to both
 +
they have been responsive
 +
 +
after polishing eric measured them
 +
get 500 ps at far end
 +
300-500 ps over the length
 +
with SiPM
 +
 +
ej204 ej212, same time resolution,
 +
polished, improvment in attenuation length, samll improvment in time resolutions, ej212 thin pieces, ej204 is faster by 20%, longer attenuations length
 +
230 ps best
 +
worst 500-600 ps
 +
no wrapping
 +
 +
check that chuck on mailing list
 +
 +
plastic craft presses the scintillator
 +
 +
look at Werner's drawing
 +
 +
Beni: with no light guide, non-linearity when hits are near the end
 +
Eugene suggest modularity

Revision as of 15:39, 15 December 2011

GlueX Start Counter Meeting
Thursday, December 15, 2011 10 am EST
JLab: CEBAF Center, Room L207

Agenda

  1. Announcements
  2. Review minutes from previous meeting
  3. Prototype Report
  4. SiPM configuration
  5. Contract Status
  6. Simulation Status

Communication Information

Video Conferencing

Slides

Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2011-4Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-4Q/ . You have to be a member of the "halld" Unix group to put files in this directory.

Minutes

New Note 27

eric, puneet, werner beni, mark


scintillators polishde, repolished two slightly better, others destroyued not happy look for other companies two companies in california mcneil, or mcneal enterprises E&F plastics drawings sent to both, both say they can do it E&F want to mill out of single piece of scint $200 per sent a good and a bad to both they have been responsive

after polishing eric measured them get 500 ps at far end 300-500 ps over the length with SiPM

ej204 ej212, same time resolution, polished, improvment in attenuation length, samll improvment in time resolutions, ej212 thin pieces, ej204 is faster by 20%, longer attenuations length 230 ps best worst 500-600 ps no wrapping

check that chuck on mailing list

plastic craft presses the scintillator

look at Werner's drawing

Beni: with no light guide, non-linearity when hits are near the end Eugene suggest modularity

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