Difference between revisions of "JEF meeting, December 8, 2023"
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=Agenda= | =Agenda= | ||
+ | |||
*'''Preparation of parts for ECAL''' -- Sasha | *'''Preparation of parts for ECAL''' -- Sasha | ||
+ | ** - signal cables: Received all needed long cables. Redid and tested 4 bundles. All cables are ready. | ||
+ | ** - signal patch panels are ready [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_13_2023/signal_patch_panel.jpg ] | ||
+ | ** - HV cables: 800 cables are ready for installation. Long cables are in production | ||
+ | ** - HV distribution boards: Chris is finalizing design of the distribution board, should order 4 boards soon. | ||
+ | ** - LV cables: ordered, lead time unclear | ||
+ | ** - LV distribution boards. The LV distribution boards have been ordered. | ||
+ | ** - Optical fibers: received all | ||
* '''Ongoing projects''' -- Sasha, all | * '''Ongoing projects''' -- Sasha, all | ||
+ | ** - Testing and labeling cables ([https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_13_2023/recently_labeled_cables.jpg Recently labeled cables in boxes)][https://halldweb.jlab.org/detectors/fcal2/installation/meetings/11_3_2023/aoran_cables.jpg ] | ||
+ | ** - Prepare modules for the TAC and prototypes (using crystals with some imperfections) [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_13_2023/spare_crystals.jpg ] | ||
+ | *** [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_20_2023/wrapped_modules.jpg Wrapped crystals] - done | ||
+ | *** [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_20_2023/parts_for_tac.jpg Parts for TAC][https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_20_2023/parts_for_tac1.jpg] - done | ||
+ | *** [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/10_20_2023/modules_for_prototype.jpg Prepared 26 modules for TAC and 35 modules for beam tests] - done | ||
** - Preparation of the LMS | ** - Preparation of the LMS | ||
− | * '''[[Testing of PMT dividers]]''' -- Sasha / Vlad / Aoran / | + | *** - All fibers are ready for the installation. The plate was machined and polised [https://logbooks.jlab.org/entry/4228633] |
+ | *** - Installing light tight covers on the plastic caps [https://halldweb.jlab.org/detectors/fcal2/lms/light_tight_caps/lms_lt4.jpg][https://halldweb.jlab.org/detectors/fcal2/lms/light_tight_caps/lms_lt3.jpg][https://halldweb.jlab.org/detectors/fcal2/lms/light_tight_caps/lms_lt1.jpg][https://halldweb.jlab.org/detectors/fcal2/lms/light_tight_caps/lms_lt2.jpg] | ||
+ | *** - Meeting with Fernando and Chris regarding LED drivers | ||
+ | ** - Radiation tests of the PMT active base [https://halldweb.jlab.org/wiki/index.php/Active_Base_Radiation_Tests] | ||
+ | ** - [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 procedure [https://halldweb.jlab.org/detectors/fcal2/dividers/divider_test_guide.pptx] | ||
+ | ** - Tested 420 dividers [https://halldweb.jlab.org/wiki/index.php/Final_test_of_dividers] | ||
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Vlad / Hakob | * '''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] | ||
+ | ** [https://halldweb.jlab.org/wiki/index.php/Detector_Alignment Detector survey] | ||
+ | *** - waiting for survey results | ||
+ | ** [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] | ||
+ | ** Meeting with Chris Cuevas regarding installing optical fibers and patch panels | ||
+ | ** Installation of electronics [https://halldweb.jlab.org/wiki/index.php/FCAL2_Crates] | ||
+ | * '''[[Lead Glass Efforts]]''' -- Malte / Mark / Kevin / Zisis | ||
*'''Analysis/Simulation''' | *'''Analysis/Simulation''' | ||
+ | |||
+ | =Minutes= | ||
+ | Attendees: Liping, Sasha, Igla, Aoran, Stjepan, Zisis, Olga, Jane, Jon. S. T. | ||
+ | * All signal cables ready, have half of short HV cables, long HV cables in production | ||
+ | * LV distribution board design finalized, boards ordered (2 week lead time + 1 week to populate) | ||
+ | * Waiting for LV cables -- received first article | ||
+ | * LMS fibers glued to moujutinge plate, in process making everything light tight | ||
+ | * Met with Fernando regarding LED pulser | ||
+ | ** Use one port in integrating sphere to inject light | ||
+ | ** Use CAEN1495 module to generate pulse | ||
+ | * PMT divider tests continue | ||
+ | * PMT divider radiation tests completed (total expoasure = 50 kRad) | ||
+ | ** Amplitude degrades with dose | ||
+ | * Made visual inspection of FCAL, taking note of location of shims | ||
+ | ** Also looking for bubbles in cookie interface -- may need retorquing | ||
+ | ** Found one suspicious PMT -- practice removal? | ||
+ | * Requested survey of FCAL-2 perimeter | ||
+ | * No power on FCAL platform yet, expected in January | ||
+ | * Optical fibers for DAQ will be installed in January/February | ||
+ | * Magnetic shielding for reference PMTs for LMS system will be needed | ||
+ | * Installation of plexiglas for lead glass LMS system underway | ||
+ | * Fiber LMS system for insert will be installed in January, then installation of cables, PMT dividers, etc. will take 3-4 months | ||
+ | * Expecting beam profiler from U.Regina in January, to replace existing rad-damaged profiler | ||
+ | ** Maybe could refurbish old profiler to use for shower profile measurements | ||
+ | * Plan to build 5x5 ECAL array with some LG surrounding, measure properties in transition region |
Latest revision as of 09:09, 11 December 2023
Meeting time and location:
- 9:30 am EST (JLab time) remote only
- Connection information
Agenda
- Preparation of parts for ECAL -- Sasha
- - signal cables: Received all needed long cables. Redid and tested 4 bundles. All cables are ready.
- - signal patch panels are ready [1]
- - HV cables: 800 cables are ready for installation. Long cables are in production
- - HV distribution boards: Chris is finalizing design of the distribution board, should order 4 boards soon.
- - LV cables: ordered, lead time unclear
- - LV distribution boards. The LV distribution boards have been ordered.
- - Optical fibers: received all
- Ongoing projects -- Sasha, all
- - Testing and labeling cables (Recently labeled cables in boxes)[2]
- - Prepare modules for the TAC and prototypes (using crystals with some imperfections) [3]
- Wrapped crystals - done
- Parts for TAC[4] - done
- Prepared 26 modules for TAC and 35 modules for beam tests - done
- - Preparation of the LMS
- - Radiation tests of the PMT active base [10]
- - Summer Students (2023)
- Testing of PMT dividers -- Sasha / Vlad / Aoran
- Installation of the FCAL2 detector & integration to GlueX -- Sasha / Vlad / Hakob
- Detector installation [13][14][15]
- Detector survey
- - waiting for survey results
- Detector installation page
- Updates from the meetings with Tim's group [16]
- Meeting with Chris Cuevas regarding installing optical fibers and patch panels
- Installation of electronics [17]
- Lead Glass Efforts -- Malte / Mark / Kevin / Zisis
- Analysis/Simulation
Minutes
Attendees: Liping, Sasha, Igla, Aoran, Stjepan, Zisis, Olga, Jane, Jon. S. T.
- All signal cables ready, have half of short HV cables, long HV cables in production
- LV distribution board design finalized, boards ordered (2 week lead time + 1 week to populate)
- Waiting for LV cables -- received first article
- LMS fibers glued to moujutinge plate, in process making everything light tight
- Met with Fernando regarding LED pulser
- Use one port in integrating sphere to inject light
- Use CAEN1495 module to generate pulse
- PMT divider tests continue
- PMT divider radiation tests completed (total expoasure = 50 kRad)
- Amplitude degrades with dose
- Made visual inspection of FCAL, taking note of location of shims
- Also looking for bubbles in cookie interface -- may need retorquing
- Found one suspicious PMT -- practice removal?
- Requested survey of FCAL-2 perimeter
- No power on FCAL platform yet, expected in January
- Optical fibers for DAQ will be installed in January/February
- Magnetic shielding for reference PMTs for LMS system will be needed
- Installation of plexiglas for lead glass LMS system underway
- Fiber LMS system for insert will be installed in January, then installation of cables, PMT dividers, etc. will take 3-4 months
- Expecting beam profiler from U.Regina in January, to replace existing rad-damaged profiler
- Maybe could refurbish old profiler to use for shower profile measurements
- Plan to build 5x5 ECAL array with some LG surrounding, measure properties in transition region