Difference between revisions of "JEF meeting, April 1, 2022"
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* Preparation for mass production of FCAL2 modules -- Sasha | * Preparation for mass production of FCAL2 modules -- Sasha | ||
− | ** 50 new CRYTUR crystals received | + | ** 50 new CRYTUR crystals [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/4_1_22/crytur_received.jpg received] |
+ | *** Need to perform a quality check | ||
+ | ** DSG group: preshaping (18 foils a day), wrapping (7 crystals a day on average, expect to wrap 10 crystals per day in the future). | ||
+ | ** Contract with the GWU is under preparation (SOW, sole source,...) | ||
+ | ** Chris A. continues to braze strips; discussions regarding brazing quality. Bobby preparing soft Iron housings. | ||
+ | ** Igal continues cutting ESR / Tedlar | ||
* Module fabrication -- Sasha | * Module fabrication -- Sasha | ||
− | **[https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication.pdf Modules fabricated by Arshak and Sasha] [https://docs.google.com/document/d/1upI9M_RNR4qipzwg-SmxmzkqoCDU294x7Y3jT5M6DVY/edit (list on Google Drive)] (grand total | + | **[https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication.pdf Modules fabricated by Arshak and Sasha] [https://docs.google.com/document/d/1upI9M_RNR4qipzwg-SmxmzkqoCDU294x7Y3jT5M6DVY/edit (list on Google Drive)] (grand total 245) |
** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/4_1_22/modules_in_tedf_4_1_22.jpg Fabricated modules in TEDF ] | ** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/4_1_22/modules_in_tedf_4_1_22.jpg Fabricated modules in TEDF ] | ||
** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/fcal_fabrication.pdf Status of fabrication ] | ** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/fcal_fabrication.pdf Status of fabrication ] | ||
* Light Monitoring System [https://halldweb.jlab.org/DocDB/0055/005548/001/lms_update.pdf April 1 update] -- Arshak | * Light Monitoring System [https://halldweb.jlab.org/DocDB/0055/005548/001/lms_update.pdf April 1 update] -- Arshak | ||
* COMCAL tests, TAC running, etc. -- Sasha | * COMCAL tests, TAC running, etc. -- Sasha | ||
+ | ** A 3 x 3 calorimeter will be installed on the TAC platform. Will (can) be used as a TAC run during the CPP experiment and other tests in the future. | ||
* Data analysis | * Data analysis | ||
* Simulations | * Simulations | ||
+ | |||
+ | =Minutes= | ||
+ | Attendees: Bill, Sasha, Olga, Axel, Phil, Igal, Jon, Liping, Zisis, Jane, Tim B., Azizah, Susan, S.T. | ||
+ | * Olga has set up the GWU lab for production of silicon cookies | ||
+ | * Sasha working on contract with GWU | ||
+ | * NPS running out of space in their lab, will move crystals to our lab; however, we will be moving to a new location some time soon (June?) | ||
+ | * PMT exchanges continue with NPS | ||
+ | * Module fabrication continues -- now up to 245 | ||
+ | * Tim W. inspected small FCAL prototype sent to us by Matt | ||
+ | ** Idea is to determine what we need to do to refurbish the lead glass modules in FCAL | ||
+ | * Absorber in front of beam hole needs to go beyond conceptual stage | ||
+ | * Sasha presented Arshak's update regarding LMS development | ||
+ | ** Ordered 80x45 cm^2 plexiglas plate with 4x4 cm^2 hole | ||
+ | ** Performed transmission tests on small prototype | ||
+ | *** Roughed surface using sandpaper | ||
+ | *** Glued fibers to face of plexiglas as opposed to drilling holes | ||
+ | ** Looking into using 4" integrating sphere | ||
+ | ** Plan to use 2 fibers per side per crystal row | ||
+ | ** Check stability using alpha source? | ||
+ | * Had some discussion regarding getting students involved in summer | ||
+ | ** Liping, GWU, Phil all potentially can send students | ||
+ | ** Also master's student from CNU interested in getting involved | ||
+ | ** Sasha to clarify permission for students to come to lab with management | ||
+ | * Need to update sensitivity plots for 40x40 insert |
Latest revision as of 08:59, 4 April 2022
Meeting time and location
- 9:30 am EST (JLab time) remote only
- Zoom meeting ID: 161 050 9142 Passcode: 004965
Agenda
- Preparation for mass production of FCAL2 modules -- Sasha
- 50 new CRYTUR crystals received
- Need to perform a quality check
- DSG group: preshaping (18 foils a day), wrapping (7 crystals a day on average, expect to wrap 10 crystals per day in the future).
- Contract with the GWU is under preparation (SOW, sole source,...)
- Chris A. continues to braze strips; discussions regarding brazing quality. Bobby preparing soft Iron housings.
- Igal continues cutting ESR / Tedlar
- 50 new CRYTUR crystals received
- Module fabrication -- Sasha
- Light Monitoring System April 1 update -- Arshak
- COMCAL tests, TAC running, etc. -- Sasha
- A 3 x 3 calorimeter will be installed on the TAC platform. Will (can) be used as a TAC run during the CPP experiment and other tests in the future.
- Data analysis
- Simulations
Minutes
Attendees: Bill, Sasha, Olga, Axel, Phil, Igal, Jon, Liping, Zisis, Jane, Tim B., Azizah, Susan, S.T.
- Olga has set up the GWU lab for production of silicon cookies
- Sasha working on contract with GWU
- NPS running out of space in their lab, will move crystals to our lab; however, we will be moving to a new location some time soon (June?)
- PMT exchanges continue with NPS
- Module fabrication continues -- now up to 245
- Tim W. inspected small FCAL prototype sent to us by Matt
- Idea is to determine what we need to do to refurbish the lead glass modules in FCAL
- Absorber in front of beam hole needs to go beyond conceptual stage
- Sasha presented Arshak's update regarding LMS development
- Ordered 80x45 cm^2 plexiglas plate with 4x4 cm^2 hole
- Performed transmission tests on small prototype
- Roughed surface using sandpaper
- Glued fibers to face of plexiglas as opposed to drilling holes
- Looking into using 4" integrating sphere
- Plan to use 2 fibers per side per crystal row
- Check stability using alpha source?
- Had some discussion regarding getting students involved in summer
- Liping, GWU, Phil all potentially can send students
- Also master's student from CNU interested in getting involved
- Sasha to clarify permission for students to come to lab with management
- Need to update sensitivity plots for 40x40 insert