[Halld-pid] Start Counter Meeting Minutes, January 12, 2011

[Mark M. Ito]

Folks,

Find the minutes at 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_January_12,_2012#Minutes 
and below as text.

   -- Mark
   _____

GlueX Start Counter Meeting, January 12, 2012
Minutes

    Present: Eugene Chudakov, Chuck Hutton, Mark Ito (chair), Tim
    Whitlatch, Beni Zihlmann

SiPM Meeting

    We reviewed notes from last week's [17]conference call with Hamamatsu
    representatives.
      * Mark spoke with Werner Boeglin by phone earlier in the week. Werner
        had reviewed the notes from the meeting and did not have any issues
        with the general direction we agreed on. He mentioned that the
        4-device configuration with no light guide would probably do no
        worse than an arrangement with more complete coverage requiring a
        light guide. He also endorsed Carl Zorn's suggestion that we use
        100 micron pixels for this application.
      * We discussed generally the geometry and associated considerations.
        If four devices are used and they are placed on a 4 mm pitch, then
        the center of the inner edge of the counters sits at 76.1 mm for
        30-fold azimuthal segmentation. Other arrangements discussed were
        varying the number of SiPM devices, the number of counters, leaving
        room for some kind of vertex detection, etc.
      * Mark discussed the project briefly with Fernando Barbosa a few days
        ago. Fernando has requested a schedule for the the project. He also
        mentioned that right now his highest priority is the SiPM read-out
        for the pair spectrometer. He will start on the start counter
        design after that.

Review of Minutes from the Previous Meeting

    We reviewed [18]minutes from the December 15th meeting.
      * Earlier, Werner mentioned on the phone that one of the companies
        [which one?] identified to shape the scintillator had received the
        samples he sent to them.
      * We agreed that a lot had been learned about how to proceed with
        SiPM read-out since last time.

    Retrieved from
    
"https://halldweb1.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_January_12,_2012"

References

   17. 
https://halldweb1.jlab.org/wiki/index.php/Conference_Call_with_Hamamatsu_Representatives,_January_5,_2012
   18. 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_December_15,_2011#Minutes

-- 
Mark M. Ito
Jefferson Lab (www.jlab.org)
(757)269-5295