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LDMX-Software / ldmx-sw

The Light Dark Matter eXperiment simulation and reconstruction framework.
https://ldmx-software.github.io
GNU General Public License v3.0
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Pull standalone G4 LYSO geometry into an LDMX gdml #1226

Closed bryngemark closed 4 months ago

bryngemark commented 10 months ago

Is your feature request related to a problem? Please describe. See #1225.

Describe the solution you'd like An alternative geometry where the current (W) target is replaced by a segmented LYSO bar active target geometry.

Describe alternatives you've considered N/A

Additional context Please ask @joyang8caltech for his Geant4 implementation of the geometry, and details of any changes to positions of other detector systems.

bryngemark commented 5 months ago

@tvami i guess this is a double for your issue #1283 , if we do need the same for 4 gev then that's not a hard change to make to the upstream TS and tracker layers.

tvami commented 5 months ago

we do need the same for 4 gev then that's not a hard change

That's indeed not hard!

Is it realistic to have LYSO by the time we get 4 GeV beam? i.e. 2025 summer? If yes, should we then have it in the reduced LDMX-geometry too (a v2 version for that)?

bryngemark commented 4 months ago

there is a prototype already, and there will be S30XL test beam before, so it's not at all unthinkable. look at the CERN testbeam geometry for how we included LYSO that time around: as one of the two TS layers.