Difference between revisions of "JEF meeting, November 18, 2022"

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*'''Preparation of parts for FCAL2 modules''' -- Sasha  
 
*'''Preparation of parts for FCAL2 modules''' -- Sasha  
 
** Received 25 CRYTUR crystals during this week [https://halldweb.jlab.org/wiki/index.php/CRYTUR]
 
** Received 25 CRYTUR crystals during this week [https://halldweb.jlab.org/wiki/index.php/CRYTUR]
**[https://halldweb.jlab.org/detectors/fcal2/module_fabrication/wrapped/wrapped_crytur.pdf Wrapped CRYTUR crystals: 772 ]  
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**[https://halldweb.jlab.org/detectors/fcal2/module_fabrication/wrapped/wrapped_crytur.pdf Wrapped CRYTUR crystals: 772]  
 
*** Available for wrapping: 10 crystals were wrapped during last week
 
*** Available for wrapping: 10 crystals were wrapped during last week
 
*** Mindy (DSG group) continues wrapping crystals
 
*** Mindy (DSG group) continues wrapping crystals
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** Fabricated modules: <span style="color:#FF0000"> Total 1348 </span> (13 modules fabricated since last week)  
 
** Fabricated modules: <span style="color:#FF0000"> Total 1348 </span> (13 modules fabricated since last week)  
 
*** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication.pdf All SICCAS 576 SICCAS]  
 
*** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication.pdf All SICCAS 576 SICCAS]  
*** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication_crytur.pdf 767 CRYTUR], available: 10
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*** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication_crytur.pdf 786 CRYTUR], available: 24
 
*** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/11_11_22 Moving modules to the new lab (EEL108)]
 
*** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/11_11_22 Moving modules to the new lab (EEL108)]
  
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=Minutes=
 
=Minutes=
 
Attendees: Igal, Sasha, Arshak, Liping, Zisis, Eugene, Phil, Olga, Susan, Malte, Azizah, Jane, Jon, Axel, S.T.
 
Attendees: Igal, Sasha, Arshak, Liping, Zisis, Eugene, Phil, Olga, Susan, Malte, Azizah, Jane, Jon, Axel, S.T.
* Igal gave an update on &eta;&rarr;&pi0;&gamma;&gamma;
+
* Igal gave an update on &eta;&rarr;&pi;0&gamma;&gamma;
 
** Using low-level objects instead of reaction filter/DSelector
 
** Using low-level objects instead of reaction filter/DSelector
 
** Saw no obvious difference between GlueX and JEF, for either shower reconstruction algorithm, when TOF veto was not applied
 
** Saw no obvious difference between GlueX and JEF, for either shower reconstruction algorithm, when TOF veto was not applied

Latest revision as of 10:08, 2 December 2022

Meeting time and location:

  • 9:30 am EST (JLab time) remote only
  • Zoom meeting ID: 161 050 9142 Passcode: 004965

Agenda

Minutes

Attendees: Igal, Sasha, Arshak, Liping, Zisis, Eugene, Phil, Olga, Susan, Malte, Azizah, Jane, Jon, Axel, S.T.

  • Igal gave an update on η→π0γγ
    • Using low-level objects instead of reaction filter/DSelector
    • Saw no obvious difference between GlueX and JEF, for either shower reconstruction algorithm, when TOF veto was not applied
    • Saw differences between GlueX and JEF when the TOF veto was applied
  • Crystal wrapping continues: 10 new ones, 5 more week of 11/21/22
    • Next batch of crystals next month, 60 outstanding
  • All brass assemblies are now on site, some straps still fail
  • Total number of fabricated modules = 1348, expect to have constructed 1400 by end of the year
    • January: take COMCAL apart
  • Sasha went over task division (JEF responsibility vs engineering support) for FCAL2 installation in great detail
    • List of tasks + manpower (student support)
      • Several groups (Lamar U., FIU, GWU, URegina,...) will be sending students to the Lab during the late spring/summer
        • Need space for students in CEBAF center + EEL
    • Request for space in hall
    • Cabling scheme: optimization of rate per crate for insert (need 7 crates)
  • Sasha working on test stand for PMT divider studies
  • PMT divider procurement coming up soon
  • Sasha working on contract with GWU for PMT divider work
  • Arshak continuing to work on LMS studies with plexiglas+fibers
    • Put 25% absorber on border (~4 cm) of plexiglas -- improved uniformity in 1D plot, will look at 2D plot
      • 33% absorber on order
    • Preparing for crosstalk measurements
    • Tim W. tentative design for holding plexiglas plate in place
    • Still need to finalize design: next 2 weeks?