Performance for run 332, a 3LS + bar configuration from 2017 CERN test beam. Compared to different geant4 simulations and to results of 2018 CERN test beam.
- CERN 17
- S332, S310, bar with 3-layer spherical lens, 4x3 MCP-PMT layout
- p/pi @ 7 GeV/c
- delta t selection with s = 0.5 ns
- with beam direction correction
- with per-PMT Cherenkov angle correction
Photon yield after geometrical reconstruction:
SPR:
Separation power using Geometrical Reconstruction:
Separation power using Time Imaging:
Separation power using Time Imaging with hodo cut:
Separation power using Time Imaging with individual per-pmt time resolution:
Example of Cherenkov angle distribution for 2017 (top) and 2018 (bottom) MCP layout. Theta = 20 deg:
Cherenkov track resolution (data, r310):
Cherenkov track resolution (data, r310) with hodoscope cut (6x7 fiber):
Simulation with 1.5 mrad beam divergence:
2017 configuration only (R310 with hodoscope cut (6x7 fiber)). Photon yield after geometrical reconstruction:
Photon yield after time imaging (no cuts):
SPR:
Separation power using Geometrical Reconstruction:
Separation power using Time Imaging:
