Difference between revisions of "GlueX TOF Meeting, November 10, 2011"
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(Created page with "Thursday, November 10, 2011<br> 10:00 am EDT<br> JLab: CEBAF Center, Room F326<br> =Agenda= # Announcements # [[GlueX TOF Meeting, October 27, 2011#Minutes|Minutes from the las...") |
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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/ . | 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/ . | ||
+ | |||
+ | =Minutes= | ||
+ | |||
+ | |||
+ | sasha | ||
+ | beni chuck eugene | ||
+ | |||
+ | |||
+ | measurements of six equal splitters, not much change | ||
+ | 50/50 110 ps mean time one plane | ||
+ | 80/20 107 ps | ||
+ | |||
+ | reflections | ||
+ | pulser, no reflections, 10 ns wide, no reflections | ||
+ | with pmt see reflections | ||
+ | shape of signal from pmt different | ||
+ | only reflection | ||
+ | |||
+ | 8 stage pmt | ||
+ | tried to test with a source | ||
+ | gain looks 5x10^5 | ||
+ | 4 or 5 time smaller than 10-stage | ||
+ | put them into set-up. do not get separation of pedestal | ||
+ | nim amplifier to see if can better separation | ||
+ | pedestal more than 10 counts at 300 counts, signal at 400 counts | ||
+ | gate 150 ns | ||
+ | |||
+ | 10 counts/pc * 150 ns * v = 10 counts | ||
+ | |||
+ | americium source |
Revision as of 14:59, 10 November 2011
Thursday, November 10, 2011
10:00 am EDT
JLab: CEBAF Center, Room F326
Agenda
- Announcements
- Minutes from the last meeting
- Mechanical design: Tim, Chuck
- Prototype status: Paul, Sasha
- Contract Status: Mark
Communication
Videoconference
- ESNet: 8542553
- EVO: EVO site
- direct meeting link
- Phone Bridge ID: 10 4388
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/ .
Minutes
sasha beni chuck eugene
measurements of six equal splitters, not much change
50/50 110 ps mean time one plane
80/20 107 ps
reflections
pulser, no reflections, 10 ns wide, no reflections with pmt see reflections shape of signal from pmt different only reflection
8 stage pmt
tried to test with a source gain looks 5x10^5 4 or 5 time smaller than 10-stage put them into set-up. do not get separation of pedestal nim amplifier to see if can better separation pedestal more than 10 counts at 300 counts, signal at 400 counts gate 150 ns
10 counts/pc * 150 ns * v = 10 counts
americium source