Difference between revisions of "Optics Meeting Jul 19 2022 230PM ET"
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| − | #Vassu provided updates using the new pattern of sieve holes. No phi offsets in any of the holes (yet). There are 12 holes, each 9 mm in diameter. In sectors 3 and 6 there is only one hole each - these are needed to assure a Moller/e-12C separation for the case of the | + | #Vassu provided updates using the new pattern of sieve holes. No phi offsets in any of the holes (yet). There are 12 holes, each 9 mm in diameter. In sectors 3 and 6 there is only one hole each - these are needed to assure a Moller/e-12C separation for the case of the one-pass data. This seems to work. Other sectors have two holes each at various radii. Now sampling from both foils in a given simulation. Clearly see the two-foil structure in plots of theta_reconstructed vs GEM_r for all three passes: 4 blobs (2 foils, 2 holes) seen for the sectors with 2 holes, and 2 blobs seen (one hole, 2 foils) seen for sectors 3 and 6. |
| − | one-pass data. This seems to work. Other sectors have two holes each at various radii. Now sampling from both foils in a given simulation. Clearly see the two-foil structure in plots of theta_reconstructed vs GEM_r for all three passes: 4 blobs (2 foils, 2 holes) seen for the sectors with 2 holes, and 2 blobs seen (one hole, 2 foils) seen for sectors 3 and 6. | + | |
#KK asked that we check that the beam generator (GEANT 4 default cross sections) include the 12C elastic form factor properly. | #KK asked that we check that the beam generator (GEANT 4 default cross sections) include the 12C elastic form factor properly. | ||
Revision as of 14:46, 11 August 2022
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Contents
[hide]Agenda
1. Initial results with the new sieve [Vassu][1]
Attendance
David, Chandan, Vassu, Kate, Bill, James Shirk, Zuhal, KK, Nathan Shankman
Minutes
- Vassu provided updates using the new pattern of sieve holes. No phi offsets in any of the holes (yet). There are 12 holes, each 9 mm in diameter. In sectors 3 and 6 there is only one hole each - these are needed to assure a Moller/e-12C separation for the case of the one-pass data. This seems to work. Other sectors have two holes each at various radii. Now sampling from both foils in a given simulation. Clearly see the two-foil structure in plots of theta_reconstructed vs GEM_r for all three passes: 4 blobs (2 foils, 2 holes) seen for the sectors with 2 holes, and 2 blobs seen (one hole, 2 foils) seen for sectors 3 and 6.
- KK asked that we check that the beam generator (GEANT 4 default cross sections) include the 12C elastic form factor properly.
Meeting link information
Meeting URL
https://cwm.zoom.us/j/97259755403?pwd=WTRqVHJnZ3RQa1IwNHdMQjJuQm9FZz09
Meeting ID: 972 5975 5403
Passcode: 4937
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