Difference between revisions of "JEF meeting, January 26, 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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*'''Preparation of parts for ECAL''' -- Sasha  
 
*'''Preparation of parts for ECAL''' -- Sasha  
 +
** - signal cables -  done
 +
** - signal patch panel [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_13_2023/signal_patch_panel.jpg ] - done
 +
** - HV cables: received 1280 in total
 +
** - HV distribution boards: in preparation
 +
** - LV cables: Received 48 cables during this week 
 +
** - LV distribution boards. Received 4 boards, performed initial cehck, need to solder connectors [https://halldweb.jlab.org/detectors/fcal2/cables/lv_distribution/lv_dist_board.jpg ]
 +
** - Optical fibers and parts for the trigger/DAQ have been ordered
 
* '''Ongoing projects''' -- Sasha, all
 
* '''Ongoing projects''' -- Sasha, all
 +
** - Testing and labeling cables [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/11_3_2023/aoran_cables.jpg ], 120 short HV cables testes and labeled during this week.
 +
** - Prepare modules for the TAC and prototypes (using crystals with some imperfections)
 +
***  26 modules for TAC [https://halldweb.jlab.org/detectors/fcal2/modules_for_prototype/tac_mod.jpg]  and 35 modules [https://halldweb.jlab.org/detectors/fcal2/modules_for_prototype/prot_mod.jpg] for the beam tests are ready
 +
** -  Preparation of the LMS
 +
*** - Need to glue Al flange to the optical fiber
 +
*** - Ready for installation [https://halldweb.jlab.org/detectors/fcal2/lms/installation]
 +
** - Radiation tests of the PMT active base [https://halldweb.jlab.org/wiki/index.php/Active_Base_Radiation_Tests]
 +
*** Finished tests, working on the tech note
 +
** - [https://halldweb.jlab.org/detectors/AL/HallD_Racks Inventory database and GUI for installed electronics ]
 +
** - [https://halldweb.jlab.org/detectors/fcal2/installation/students_2023/list_of_students_2023.xlsx Summer Students (2023) ]
 
* '''[[Testing of PMT dividers]]''' -- Sasha / Vlad / Aoran  
 
* '''[[Testing of PMT dividers]]''' -- Sasha / Vlad / Aoran  
−
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Vlad  
+
** - Testing procedure [https://halldweb.jlab.org/detectors/fcal2/dividers/divider_test_guide.pptx]
−
* '''Analysis/Simulation'''
+
** - Tested 637 divider (all fabricated dividers) [https://halldweb.jlab.org/wiki/index.php/Final_test_of_dividers]. No dividers produced during this week.
 +
** - Spare PMTs, have about 20, likely need more for the future (order 30 more )?
 +
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Vlad / Hakob
 +
**  Detector installation [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]
 +
** Installation of the LMS
 +
*** Started yesterday (after long delay) [https://logbooks.jlab.org/entry/4243052]
 +
*** Had to obtain trainings for operating scissor lift (operation without training violates safety rules) (revealed some issues with the lift when inspected by Joe Thomas)
 +
** Cable and divider installation
 +
*** Started yesterday, making a decision how to stretch them [https://logbooks.jlab.org/entry/4243888]
 +
** Still no power on the ECAL platform  (expect delay with the development of the trigger/DAQ)
 +
** [https://halldweb.jlab.org/wiki/index.php/FCAL_Installation Detector installation page]
 +
 
 +
<!-- ** [https://halldweb.jlab.org/wiki/index.php/Detector_Alignment Detector survey] -->
 +
 
 +
=Minutes=
 +
Attendees: Stjepan, Vlad, Sasha, Liping, Bill, Zisis, Igal, Jon, Malte, Olga, Jane, Phil, S.T.
 +
* Installation of LMS is ongoing
 +
** Fibers have been routed and secured on integrating sphere side, to be connected soon
 +
** Checked fiber transmission with blue led light before gluing on detector side
 +
*** Can glue ~10/hour
 +
** Used electrical tape on flange at detector side for light tightness
 +
** Using plastic clamps to organize fiber bundles coming off detector side
 +
** Bottom half fibers routed downward, upper half split left-right
 +
* First batch of short LV cables finally arrived
 +
* LV distribution boards arrived, need to be populated with connectors
 +
* Plan in place for how to attach short cables in bundles of 6 or 7 to chains
 +
* Divider tests stalled due to fabrication bottleneck
 +
** Once populated detector support group can help
 +
* Stjepan is running simulations of various &eta; decay channels with branching ratios comparable to &eta;&rarr;&pi;0&gamma;&gamma;

Latest revision as of 09:13, 29 January 2024

Meeting time and location:


Agenda

  • Preparation of parts for ECAL -- Sasha
    • - signal cables - done
    • - signal patch panel [1] - done
    • - HV cables: received 1280 in total
    • - HV distribution boards: in preparation
    • - LV cables: Received 48 cables during this week
    • - LV distribution boards. Received 4 boards, performed initial cehck, need to solder connectors [2]
    • - Optical fibers and parts for the trigger/DAQ have been ordered
  • Ongoing projects -- Sasha, all
    • - Testing and labeling cables [3], 120 short HV cables testes and labeled during this week.
    • - Prepare modules for the TAC and prototypes (using crystals with some imperfections)
      • 26 modules for TAC [4] and 35 modules [5] for the beam tests are ready
    • - Preparation of the LMS
      • - Need to glue Al flange to the optical fiber
      • - Ready for installation [6]
    • - Radiation tests of the PMT active base [7]
      • Finished tests, working on the tech note
    • - Inventory database and GUI for installed electronics
    • - Summer Students (2023)
  • Testing of PMT dividers -- Sasha / Vlad / Aoran
    • - Testing procedure [8]
    • - Tested 637 divider (all fabricated dividers) [9]. No dividers produced during this week.
    • - Spare PMTs, have about 20, likely need more for the future (order 30 more )?
  • Installation of the FCAL2 detector & integration to GlueX -- Sasha / Vlad / Hakob
    • Detector installation [10][11][12]
    • Installation of the LMS
      • Started yesterday (after long delay) [13]
      • Had to obtain trainings for operating scissor lift (operation without training violates safety rules) (revealed some issues with the lift when inspected by Joe Thomas)
    • Cable and divider installation
      • Started yesterday, making a decision how to stretch them [14]
    • Still no power on the ECAL platform (expect delay with the development of the trigger/DAQ)
    • Detector installation page


Minutes

Attendees: Stjepan, Vlad, Sasha, Liping, Bill, Zisis, Igal, Jon, Malte, Olga, Jane, Phil, S.T.

  • Installation of LMS is ongoing
    • Fibers have been routed and secured on integrating sphere side, to be connected soon
    • Checked fiber transmission with blue led light before gluing on detector side
      • Can glue ~10/hour
    • Used electrical tape on flange at detector side for light tightness
    • Using plastic clamps to organize fiber bundles coming off detector side
    • Bottom half fibers routed downward, upper half split left-right
  • First batch of short LV cables finally arrived
  • LV distribution boards arrived, need to be populated with connectors
  • Plan in place for how to attach short cables in bundles of 6 or 7 to chains
  • Divider tests stalled due to fabrication bottleneck
    • Once populated detector support group can help
  • Stjepan is running simulations of various η decay channels with branching ratios comparable to η→π0γγ
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