Difference between revisions of "GlueX Start Counter Meeting, August 25, 2011"

From GlueXWiki
Jump to: navigation, search
m (=New SiPM pre-amp test)
(Minutes)
Line 46: Line 46:
  
 
==Prototype News==
 
==Prototype News==
 +
 +
===Light guide tests===
 +
 +
FIU tried out the new fiber light guide. If anything, it was a bit worse than the solid light guide that has been used for some time now.
  
 
===New SiPM pre-amp test===
 
===New SiPM pre-amp test===
Line 51: Line 55:
 
Werner sent the SiPM array FIU had previously tested back to Fernando Barbosa and Fernando outfitted it with his new pre-amp configuration and sent it back to Miami.
 
Werner sent the SiPM array FIU had previously tested back to Fernando Barbosa and Fernando outfitted it with his new pre-amp configuration and sent it back to Miami.
  
• tried out, lguth guide with fiber a bit worse than solid light guide
 
 
• heard about Fernando's SiPM
 
• heard about Fernando's SiPM
 
∘ sent to Fernando
 
∘ sent to Fernando

Revision as of 18:41, 27 August 2011

Location, Time

Thursday, August 25, 2011
3:30 pm EDT
JLab: CEBAF Center, Room F326/7

Agenda

  1. Announcements
  2. Review minutes from previous meeting: all
  3. Prototype Report
    • New SiPM pre-amp
  4. MOU status

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/2011-3Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-3Q/ . You have to be a member of the "halld" Unix group to do this.

Minutes

Present:

  • FIU: Werner Boeglin, Lei Guo
  • JLab, CEBAF Center: Simon Taylor, Beni Zihlmann
  • JLab, ARC: Chuck Hutton, Mark Ito (chair), Puneet Khetarpal

New Meeting Time

We decided to move the meeting time from 3:30 pm to 10:00 am. Same day of the week, every other Thursday.

Prototype News

Light guide tests

FIU tried out the new fiber light guide. If anything, it was a bit worse than the solid light guide that has been used for some time now.

New SiPM pre-amp test

Werner sent the SiPM array FIU had previously tested back to Fernando Barbosa and Fernando outfitted it with his new pre-amp configuration and sent it back to Miami.

• heard about Fernando's SiPM ∘ sent to Fernando ∘ sent back ∘ got everything set up yesterday • 350 ps, worst bar from plastic craft • butted against scintillator • array, no cooling • make small short light guide match to area • start characterizing performance of scintillator paddles ∘ surfaces do not look that nice ∘ surface important • fernando asked how many photo-electrons ∘ 25-35 10 inches away, in the middle • Tim has drawing • MOU stuck in legal, will be expedited • ESR material, five big sheets ∘ has two sides ‣ glue backing • puneet, working with Sascha with reconstruction