Difference between revisions of "JEF meeting, May 10, 2024"

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(Created page with "Meeting time and location: *9:30 am EST (JLab time) remote only * [https://halldweb.jlab.org/wiki-private/index.php/JEF_Weekly_Meeting#Connection_information Connection inform...")
 
 
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*9:30 am EST (JLab time) remote only
 
*9:30 am EST (JLab time) remote only
 
* [https://halldweb.jlab.org/wiki-private/index.php/JEF_Weekly_Meeting#Connection_information Connection information]
 
* [https://halldweb.jlab.org/wiki-private/index.php/JEF_Weekly_Meeting#Connection_information Connection information]
 +
=Agenda=
 
*'''Preparation of parts for ECAL''' -- Sasha  
 
*'''Preparation of parts for ECAL''' -- Sasha  
 +
** - signal cables and 2 patch panels [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_13_2023/signal_patch_panel.jpg ] - done
 +
** - HV short cables: done
 +
** - HV long cable, 18 ready (out of 36)
 +
** - HV distribution boards: not designed
 +
** - LV cables: missing about 20 cables, waiting for the last delivery batch.
 +
** - LV distribution boards [https://halldweb.jlab.org/detectors/fcal2/cables/lv_distribution/lv_dist_board.jpg ]. One board out of 4 is ready
 +
** - LED: the prototype of the LED board has been received. Chris will populate it with components
 
* '''Ongoing projects'''  
 
* '''Ongoing projects'''  
 +
**  - [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/05_10_2024/May-10-2024-L.pdf Update from Laveen]
 +
**  - Testing, labeling and bundling LV cables
 
* '''[[Testing of PMT dividers]]''' -- Sasha / Vlad / George / Mindy
 
* '''[[Testing of PMT dividers]]''' -- Sasha / Vlad / George / Mindy
 +
** - Testing procedure [https://halldweb.jlab.org/detectors/fcal2/dividers/divider_test_guide.pptx]
 +
** - All dividers have been fabricated and tested by George [https://halldweb.jlab.org/wiki/index.php/Final_test_of_dividers]
 +
***  Continue removing regulators from the PCB (about 70 regulators have been removed, require re-testing dividers)
 
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Vlad / Hakob / Laveen  
 
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Vlad / Hakob / Laveen  
−
** '''Preparation for beam tests with the PS'''
+
** Installation and testing cables and dividers [https://logbooks.jlab.org/entry/4300430] [https://logbooks.jlab.org/entry/4299442]
−
** '''Other hardware projects'''
+
** [https://halldweb.jlab.org/wiki/index.php/FCAL_Installation Detector installation page]
 +
*** (links from the previous meetings [https://logbooks.jlab.org/book/halld][https://halldweb.jlab.org/detectors/fcal2/installation/photos/install_fcal/students_detector1.jpg][https://halldweb.jlab.org/detectors/fcal2/installation/photos/install_fcal/students_detector.jpg])
 +
* '''Summer students''' -- Sasha
 +
** - 2 students from UNCW (May 15), 1 student from GWU (May 19)  All paper work has been completed, they are ready to come.
 +
** - Projects: document all test results, assist with the cable/divider installation, install signal cables on patch panel, work on the ECAL monitoring plots
 +
* '''Beam tests with the PS'''
 +
***  measure shower beam profile and reconstruction in the crystal/LG transition region
 +
***  (install prototype with 5x5 PbWO4 modules  + ? LG)
 +
* '''Other hardware projects'''
 +
** prototype of the ECAL veto counter (?)
 
*'''FCAL2 poster for open house?'''
 
*'''FCAL2 poster for open house?'''
 +
** JEF/ECAL/FCAL poster  (Laveen + students + feedback from all of us) 
 
*'''Analysis/Simulation'''
 
*'''Analysis/Simulation'''
 +
 +
=Minutes=
 +
Attendees: Bill, Sasha, Laveen, Jane, Zisis, Liping, Vlad, Stjepan, Jon, Olga, S.T.
 +
* Almost all short LV cables in house (missing about 20)
 +
* Progress in construction of LV patch panels
 +
* HV distribution boards not ready yet
 +
* Prototype for LED driver PCB in house, to be glued to integrating sphere
 +
* PMT dividers: all testing completed, except newer ones with regulator removed (need to be retested)
 +
* Laveen tested and labeled 100 LV cables + installed/tested dividers for 1 layer in insert
 +
** Now have layers -21 to -10 installed
 +
** Next set of rows will have amplifier
 +
* HV cables to be connected to patch panel outside dark box
 +
* Found one bad HV cable, tripping to ground, removed and replaced
 +
* Also found some broken connectors and jumpers not set correctly
 +
* Dark room will be opened on Tuesday to check chiller
 +
* Three students arriving soon
 +
* Plan to keep one arm in PS setup for our own studies during beam
 +
** Measure shower profile in lead tungstate and lead glass (5x5 each?)
 +
* Plan to have posters for open house
 +
* Discussed possible veto counter near beam line
 +
** Make prototype with scintillating tiles + wavelength shifting fibers?
 +
** Veto for Compton events?

Latest revision as of 09:48, 13 May 2024

Meeting time and location:

Agenda

  • Preparation of parts for ECAL -- Sasha
    • - signal cables and 2 patch panels [1] - done
    • - HV short cables: done
    • - HV long cable, 18 ready (out of 36)
    • - HV distribution boards: not designed
    • - LV cables: missing about 20 cables, waiting for the last delivery batch.
    • - LV distribution boards [2]. One board out of 4 is ready
    • - LED: the prototype of the LED board has been received. Chris will populate it with components
  • Ongoing projects
  • Testing of PMT dividers -- Sasha / Vlad / George / Mindy
    • - Testing procedure [3]
    • - All dividers have been fabricated and tested by George [4]
      • Continue removing regulators from the PCB (about 70 regulators have been removed, require re-testing dividers)
  • Installation of the FCAL2 detector & integration to GlueX -- Sasha / Vlad / Hakob / Laveen
  • Summer students -- Sasha
    • - 2 students from UNCW (May 15), 1 student from GWU (May 19) All paper work has been completed, they are ready to come.
    • - Projects: document all test results, assist with the cable/divider installation, install signal cables on patch panel, work on the ECAL monitoring plots
  • Beam tests with the PS
      • measure shower beam profile and reconstruction in the crystal/LG transition region
      • (install prototype with 5x5 PbWO4 modules + ? LG)
  • Other hardware projects
    • prototype of the ECAL veto counter (?)
  • FCAL2 poster for open house?
    • JEF/ECAL/FCAL poster (Laveen + students + feedback from all of us)
  • Analysis/Simulation

Minutes

Attendees: Bill, Sasha, Laveen, Jane, Zisis, Liping, Vlad, Stjepan, Jon, Olga, S.T.

  • Almost all short LV cables in house (missing about 20)
  • Progress in construction of LV patch panels
  • HV distribution boards not ready yet
  • Prototype for LED driver PCB in house, to be glued to integrating sphere
  • PMT dividers: all testing completed, except newer ones with regulator removed (need to be retested)
  • Laveen tested and labeled 100 LV cables + installed/tested dividers for 1 layer in insert
    • Now have layers -21 to -10 installed
    • Next set of rows will have amplifier
  • HV cables to be connected to patch panel outside dark box
  • Found one bad HV cable, tripping to ground, removed and replaced
  • Also found some broken connectors and jumpers not set correctly
  • Dark room will be opened on Tuesday to check chiller
  • Three students arriving soon
  • Plan to keep one arm in PS setup for our own studies during beam
    • Measure shower profile in lead tungstate and lead glass (5x5 each?)
  • Plan to have posters for open house
  • Discussed possible veto counter near beam line
    • Make prototype with scintillating tiles + wavelength shifting fibers?
    • Veto for Compton events?
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