Difference between revisions of "JEF meeting, July 21, 2023"
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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= | =Agenda= | ||
*'''Preparation of parts for ECAL modules''' -- Sasha | *'''Preparation of parts for ECAL modules''' -- Sasha | ||
+ | ** Crystals: | ||
+ | **: - <span style="color:#FF0000"> Received all crystals from CRYTUR [https://halldweb.jlab.org/wiki/index.php/CRYTUR ]. </span> | ||
+ | **: - Jane with students performed inspection of 88 crystals, expect to receive 66 | ||
+ | ** Received all long signal cables from the first order (1200). Received 450 short signal cables [https://halldweb.jlab.org/detectors/fcal2/installation/photos/label_signal/short_signal.jpg] | ||
+ | ** Procurement parts for the LMS: | ||
+ | **: - Waiting for 7,600 ft of optical fibers (August/September) | ||
* '''Module fabrication''' -- Sasha | * '''Module fabrication''' -- Sasha | ||
+ | <!-- ** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/fcal_fabrication.pdf Status of fabrication ] --> | ||
+ | ** All modules have been fabricated, proceed with the final inventorization (about 1610 modules in total) | ||
+ | ** Fixing about 20 modules with small imperfections (overlapping Tedla) | ||
* '''Ongoing projects''' -- Sasha, all | * '''Ongoing projects''' -- Sasha, all | ||
+ | ** Visual inspections of fabricated modules [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/19_05_2023/modules_qa.docx] - done | ||
+ | ** Prepare to move modules into Hall D [https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move.jpg] [https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move1.jpg][https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move2.jpg] | ||
+ | ** Prepare space for the ECAL in Hall D. Move and install shelves. 70 modules have already been moved into the hall [https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move3.jpg]. | ||
+ | ** Tested, labeled, and bundled (53 bundlesout of 100) [https://halldweb.jlab.org/detectors/fcal2/installation/photos/label_signal/signal_bundles.jpg] of signal cables connected from the flash ADC to the patch panel [https://halldweb.jlab.org/wiki/index.php/Testing_and_labeling_cables]. Receive cartridges for the printer, will resume labeling and cable bundling today. | ||
+ | ** Removing signal cables from the FCAL and rearranging signal cables in the hall [https://halldweb.jlab.org/wiki/index.php/Removing_FCAL_cables_from_the_detector] [https://halldweb.jlab.org/wiki/index.php/Rearranging_FCAL_cables Rearranging_FCAL_cables] - done | ||
+ | **: - 400 signal cables were removed,re-labeled and bundled | ||
+ | **: - all cables have been re-arranged, two VXS crates can be removed (will be used by the ECAL) | ||
+ | **: - install two flash ADCs | ||
+ | ** Cutting optical fibers and gluing plastic caps [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/06_23_2023/glue_caps.jpg] | ||
+ | ** [https://docs.google.com/presentation/d/1euIA49SszoQmSM4Lxu1OtZ8OfjltgwzXIbXo6TPEB3s/edit#slide=id.p Report from students] | ||
+ | ** Test fabricated modules using LMS [https://halldweb.jlab.org/wiki/index.php/Testing_ECAL_modules] 644 modules have been tested. | ||
* '''[[Testing of PMT dividers]]''' -- Sasha / Vlad | * '''[[Testing of PMT dividers]]''' -- Sasha / Vlad | ||
+ | ** All electronics components received, will be shiped to the company to fabricate dividers today (Chris) | ||
* '''[https://halldweb.jlab.org/wiki/index.php/FCAL_Insert_Module_Fabrication Proceedures]''' | * '''[https://halldweb.jlab.org/wiki/index.php/FCAL_Insert_Module_Fabrication Proceedures]''' | ||
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Arshak / Vlad / Hakob | * '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Arshak / Vlad / Hakob | ||
+ | ** Started installing detector modules [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] | ||
+ | ** [https://halldweb.jlab.org/wiki/index.php/FCAL_Installation Detector installation page] | ||
+ | ** Updates from the meetings with Tim's group [https://halldweb.jlab.org/wiki/index.php/FCAL_2_Design_Meetings] | ||
+ | ** Discussion of the FCAL2 installation procedures [https://halldweb.jlab.org/wiki/index.php/FCAL_2_Installation_Meetings] | ||
+ | ** [https://halldweb.jlab.org/wiki/index.php/Distribution_of_signals_and_voltages Final mapping of low-voltage cables] | ||
+ | ** [https://halldweb.jlab.org/wiki/index.php/List_of_tasks_and_manpower Projects for summer students] | ||
+ | ** [https://halldweb.jlab.org/detectors/fcal2/installation/students_2023/list_of_students_2023.xlsx Summer Students (2023) ] | ||
+ | <!-- ** [https://halldweb.jlab.org/detectors/fcal2/installation/photos Disassembling FCAL] --> | ||
*'''Light monitoring system''' -- Arshak | *'''Light monitoring system''' -- Arshak | ||
− | * '''Simulations/Analysis''' | + | |
− | ** [[File:island_july23.pdf]] | + | *'''Simulations/Analysis''' |
+ | ** [[File:island_july23.pdf]] Update on Island algorithm (Simon) | ||
+ | |||
+ | =Minutes= | ||
+ | Attendees: Bill, Arshak, Igal, Sasha, Liping, Jane, Susan, Olga, Axel, S.T. | ||
+ | * Jane's group inspected 88 SICCAS crystals, of which we will reject 22 | ||
+ | ** 66 crystals to be sent to JLab, will be inspected on site | ||
+ | * Have 1602 good FCAL-2 modules and ~30? scratched/chipped/poorly wrapped spares in hand | ||
+ | * Checked 644 modules using LED in black box, saw ~25% spread in amplitude | ||
+ | * Wrapping assemblies in plastic in preparation for moving to hall | ||
+ | * Short cables for installation in dark room arriving | ||
+ | * Need to make 47 large cable bundles | ||
+ | * All donuts glued and fibers polished for existing fibers, still waiting for remaining fibers | ||
+ | * Stacking LG in hall continues -- as of meeting, up to layer where lead tungstate crystals would be installed | ||
+ | ** Survey and alignment crew checked flatness | ||
+ | * Reference PMTs for LMS will probably need additional magnetic field shielding | ||
+ | * Discussed idea of installing fiber profiler in front of COMCAL to aid in measuring the transverse shower profile | ||
+ | * Simon presented an update on the island algorithm development | ||
+ | ** Added S-curve correction to try to remove residual position bias | ||
+ | ** Simulation studies indicate small overall position bias, needs to be understood | ||
+ | ** Island algorithm works better for insert than for LG region, needs to be understood | ||
+ | ** Staggered geometry needs to be added to geometry specification |
Latest revision as of 07:47, 24 July 2023
Meeting time and location:
- 9:30 am EST (JLab time) remote only
- Connection information
Agenda
- Preparation of parts for ECAL modules -- Sasha
- Crystals:
- - Received all crystals from CRYTUR [1].
- - Jane with students performed inspection of 88 crystals, expect to receive 66
- Received all long signal cables from the first order (1200). Received 450 short signal cables [2]
- Procurement parts for the LMS:
- - Waiting for 7,600 ft of optical fibers (August/September)
- Crystals:
- Module fabrication -- Sasha
- All modules have been fabricated, proceed with the final inventorization (about 1610 modules in total)
- Fixing about 20 modules with small imperfections (overlapping Tedla)
- Ongoing projects -- Sasha, all
- Visual inspections of fabricated modules [3] - done
- Prepare to move modules into Hall D [4] [5][6]
- Prepare space for the ECAL in Hall D. Move and install shelves. 70 modules have already been moved into the hall [7].
- Tested, labeled, and bundled (53 bundlesout of 100) [8] of signal cables connected from the flash ADC to the patch panel [9]. Receive cartridges for the printer, will resume labeling and cable bundling today.
- Removing signal cables from the FCAL and rearranging signal cables in the hall [10] Rearranging_FCAL_cables - done
- - 400 signal cables were removed,re-labeled and bundled
- - all cables have been re-arranged, two VXS crates can be removed (will be used by the ECAL)
- - install two flash ADCs
- Cutting optical fibers and gluing plastic caps [11]
- Report from students
- Test fabricated modules using LMS [12] 644 modules have been tested.
- Testing of PMT dividers -- Sasha / Vlad
- All electronics components received, will be shiped to the company to fabricate dividers today (Chris)
- Proceedures
- Installation of the FCAL2 detector & integration to GlueX -- Sasha / Arshak / Vlad / Hakob
- Started installing detector modules [13][14][15]
- Detector installation page
- Updates from the meetings with Tim's group [16]
- Discussion of the FCAL2 installation procedures [17]
- Final mapping of low-voltage cables
- Projects for summer students
- Summer Students (2023)
- Light monitoring system -- Arshak
- Simulations/Analysis
- File:Island july23.pdf Update on Island algorithm (Simon)
Minutes
Attendees: Bill, Arshak, Igal, Sasha, Liping, Jane, Susan, Olga, Axel, S.T.
- Jane's group inspected 88 SICCAS crystals, of which we will reject 22
- 66 crystals to be sent to JLab, will be inspected on site
- Have 1602 good FCAL-2 modules and ~30? scratched/chipped/poorly wrapped spares in hand
- Checked 644 modules using LED in black box, saw ~25% spread in amplitude
- Wrapping assemblies in plastic in preparation for moving to hall
- Short cables for installation in dark room arriving
- Need to make 47 large cable bundles
- All donuts glued and fibers polished for existing fibers, still waiting for remaining fibers
- Stacking LG in hall continues -- as of meeting, up to layer where lead tungstate crystals would be installed
- Survey and alignment crew checked flatness
- Reference PMTs for LMS will probably need additional magnetic field shielding
- Discussed idea of installing fiber profiler in front of COMCAL to aid in measuring the transverse shower profile
- Simon presented an update on the island algorithm development
- Added S-curve correction to try to remove residual position bias
- Simulation studies indicate small overall position bias, needs to be understood
- Island algorithm works better for insert than for LG region, needs to be understood
- Staggered geometry needs to be added to geometry specification