The MUSE Scattered-Particle Scintillators

The MUon Proton Scattering Experiment (MUSE) at the Paul Scherrer Institute will measure the muon-proton and electron-proton elastic cross sections in the same experiment. The scattered-particle scintillators (SPS) are part of the event trigger and help with the particle separation and reaction identification via time-of-flight (TOF) measurements. These detectors are made out of organic plastic scintillators (EJ-204), which are up to 220-cm long, and are read out with Hamamatsu R13435 photomultiplier tubes. This presentation will discuss methods to determine the energy calibration, signal attenuation, and thresholds of the SPS detectors.