Light response study of FCC-hh plastic-scintillator tiles with SiPM readout

In this study light yield measurements of scintillating plastic tiles for cosmic muons were preformed. The setup is comprised of plastic-scintillator tiles, wavelengthshifting fibers and Silicon photomultipliers (SiPMs). The measurement setups are designed to represent the conditions at the first and last layer of the FCC-hh hadronic calorimeter as proposed in [1]. The key SiPM parameters, gain and dark count rate, were measured using a full pulse-height spectrum analysis. Optimization tests concerning the wrapping material of the plastic-scintillator tiles were performed, whereby the maximum measured light yield is 7.61(+0.38 -0.23) number-of-photoelectrons per Minimum Ionizing Particle (Npe/MIP).