Difference between revisions of "Optics Meeting Jul 5 2022 230PM ET"
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=Agenda= | =Agenda= | ||
| − | 1. Update on sieve and blocker z placement and geometry [Kate] | + | 1. Update on sieve and blocker z placement and geometry [Kate] [https://moller.jlab.org/wiki/index.php/File:US_Region_Placement_07052022.pdf] |
| − | 2. Update on GEM Efficiency Map and optimum orientation [Nathan] | + | 2. Update on GEM Efficiency Map and optimum orientation [Nathan] [https://moller.jlab.org/wiki/index.php/File:grid_transform.pdf] [https://moller.jlab.org/wiki/index.php/File:trajectory.pdf] |
| + | |||
| + | 3. Sieve Hole Placements [Vassu][https://moller.jlab.org/wiki/index.php/File:Sieve_Hole_Locations.pdf] | ||
=Attendance= | =Attendance= | ||
| + | Ciprian, Bill, Zuhal, Nathan, Vassu, James, KK, Kate | ||
=Minutes= | =Minutes= | ||
| + | Kate: | ||
| + | |||
| + | - calculations for sieve geometry were redone to account for changes in sieve thickness and location. | ||
| + | * sieve inner bore radius can stay the same. | ||
| + | * optimal sieve hole location is slightly different. | ||
| + | * radial range of "allowed" sieve holes expanded some. | ||
| + | |||
| + | Nathan: | ||
| + | |||
| + | - GEM efficiency map now has outer curves and smaller ribs (neither are fully realistic but are a better approximation) | ||
| + | |||
| + | - showed that we can cleanly plot multiplication of electrons through GEM layers. | ||
| + | |||
| + | Vassu: | ||
| + | |||
| + | - sieve hole locations | ||
| + | * need to be slightly updated. | ||
| + | - sieve hole separation | ||
| + | * using beam generator, it is difficult to distinguish holes as well as background from moller events | ||
| + | * different magnetic fields could be used for different passes to separated eP and moller events | ||
| + | * strange bimodal distribution needs to be investigated | ||
=Meeting link information= | =Meeting link information= | ||
Latest revision as of 18:18, 6 July 2022
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Contents
[hide]Agenda
1. Update on sieve and blocker z placement and geometry [Kate] [1]
2. Update on GEM Efficiency Map and optimum orientation [Nathan] [2] [3]
3. Sieve Hole Placements [Vassu][4]
Attendance
Ciprian, Bill, Zuhal, Nathan, Vassu, James, KK, Kate
Minutes
Kate:
- calculations for sieve geometry were redone to account for changes in sieve thickness and location.
- sieve inner bore radius can stay the same.
- optimal sieve hole location is slightly different.
- radial range of "allowed" sieve holes expanded some.
Nathan:
- GEM efficiency map now has outer curves and smaller ribs (neither are fully realistic but are a better approximation)
- showed that we can cleanly plot multiplication of electrons through GEM layers.
Vassu:
- sieve hole locations
- need to be slightly updated.
- sieve hole separation
- using beam generator, it is difficult to distinguish holes as well as background from moller events
- different magnetic fields could be used for different passes to separated eP and moller events
- strange bimodal distribution needs to be investigated
Meeting link information
Meeting URL
https://cwm.zoom.us/j/97259755403?pwd=WTRqVHJnZ3RQa1IwNHdMQjJuQm9FZz09
Meeting ID: 972 5975 5403
Passcode: 4937
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