Difference between revisions of "JEF meeting, November 18, 2022"
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** [https://halldweb.jlab.org/wiki/index.php/List_of_tasks_and_manpower Projects for summer students] | ** [https://halldweb.jlab.org/wiki/index.php/List_of_tasks_and_manpower Projects for summer students] | ||
* '''Light Monitoring System''' -- Arshak | * '''Light Monitoring System''' -- Arshak | ||
| + | |||
| + | =Minutes= | ||
| + | Attendees: Igal, Sasha, Arshak, Liping, Zisis, Eugene, Phil, Olga, Susan, Malte, Azizah, Jane, Jon, Axel, S.T. | ||
| + | * Igal gave an update on η→&pi0;γγ | ||
| + | ** Using low-level objects instead of reaction filter/DSelector | ||
| + | ** Saw no obvious difference between GlueX and JEF, for either shower reconstruction algorithm, when TOF veto was not applied | ||
| + | ** Saw differences between GlueX and JEF when the TOF veto was applied | ||
| + | * Crystal wrapping continues: 10 new ones, 5 more week of 11/21/22 | ||
| + | ** Next batch of crystals next month, 60 outstanding | ||
| + | * All brass assemblies are now on site, some straps still fail | ||
| + | * Total number of fabricated modules = 1348, expect to have constructed 1400 by end of the year | ||
| + | ** January: take COMCAL apart | ||
| + | * Sasha went over task division (JEF responsibility vs engineering support) for FCAL2 installation in great detail | ||
| + | ** List of tasks + manpower (student support) | ||
| + | *** Several groups (Lamar U., FIU, GWU, URegina,...) will be sending students to the Lab during the late spring/summer | ||
| + | **** Need space for students in CEBAF center + EEL | ||
| + | ** Request for space in hall | ||
| + | ** Cabling scheme: optimization of rate per crate for insert (need 7 crates) | ||
| + | * Sasha working on test stand for PMT divider studies | ||
| + | * PMT divider procurement coming up soon | ||
| + | * Sasha working on contract with GWU for PMT divider work | ||
| + | * Arshak continuing to work on LMS studies with plexiglas+fibers | ||
| + | ** Put 25% absorber on border (~4 cm) of plexiglas -- improved uniformity in 1D plot, will look at 2D plot | ||
| + | *** 33% absorber on order | ||
| + | ** Preparing for crosstalk measurements | ||
| + | ** Tim W. tentative design for holding plexiglas plate in place | ||
| + | ** Still need to finalize design: next 2 weeks? | ||
Revision as of 09:56, 21 November 2022
Meeting time and location:
- 9:30 am EST (JLab time) remote only
- Zoom meeting ID: 161 050 9142 Passcode: 004965
Agenda
- Simulations/Analysis
- Updates -- ig
- Preparation of parts for FCAL2 modules -- Sasha
- Received 25 CRYTUR crystals during this week [1]
- Wrapped CRYTUR crystals: 772
- Available for wrapping: 10 crystals were wrapped during last week
- Mindy (DSG group) continues wrapping crystals
- Mindy will start soldering wires to sockets (short meeting with Chris and Mindy)
- List of available parts
- Module fabrication -- Sasha
- Status of fabrication
- Fabricated modules: Total 1348 (13 modules fabricated since last week)
- Installation of the FCAL2 detector -- Sasha / Arshak
- Detector installation page
- Updates from the meetings with Tim's group [2]
- Detector cabling and patch panels for the FCAL insert
- Manpower and division of tasks
- Projects for summer students
- Light Monitoring System -- Arshak
Minutes
Attendees: Igal, Sasha, Arshak, Liping, Zisis, Eugene, Phil, Olga, Susan, Malte, Azizah, Jane, Jon, Axel, S.T.
- Igal gave an update on η→&pi0;γγ
- Using low-level objects instead of reaction filter/DSelector
- Saw no obvious difference between GlueX and JEF, for either shower reconstruction algorithm, when TOF veto was not applied
- Saw differences between GlueX and JEF when the TOF veto was applied
- Crystal wrapping continues: 10 new ones, 5 more week of 11/21/22
- Next batch of crystals next month, 60 outstanding
- All brass assemblies are now on site, some straps still fail
- Total number of fabricated modules = 1348, expect to have constructed 1400 by end of the year
- January: take COMCAL apart
- Sasha went over task division (JEF responsibility vs engineering support) for FCAL2 installation in great detail
- List of tasks + manpower (student support)
- Several groups (Lamar U., FIU, GWU, URegina,...) will be sending students to the Lab during the late spring/summer
- Need space for students in CEBAF center + EEL
- Several groups (Lamar U., FIU, GWU, URegina,...) will be sending students to the Lab during the late spring/summer
- Request for space in hall
- Cabling scheme: optimization of rate per crate for insert (need 7 crates)
- List of tasks + manpower (student support)
- Sasha working on test stand for PMT divider studies
- PMT divider procurement coming up soon
- Sasha working on contract with GWU for PMT divider work
- Arshak continuing to work on LMS studies with plexiglas+fibers
- Put 25% absorber on border (~4 cm) of plexiglas -- improved uniformity in 1D plot, will look at 2D plot
- 33% absorber on order
- Preparing for crosstalk measurements
- Tim W. tentative design for holding plexiglas plate in place
- Still need to finalize design: next 2 weeks?
- Put 25% absorber on border (~4 cm) of plexiglas -- improved uniformity in 1D plot, will look at 2D plot
