Application of large area SiPMs for the readout of a plastic scintillator based timing detector

摘要

In this study an array of eight 6 mm x 6 mm area SiPMs was coupled to the endof a long plastic scintillator counter which was exposed to a 2.5 GeV/c muonbeam at the CERN PS. Timing characteristics of bars with dimensions 150 cm x 6cm x 1 cm and 120 cm x 11 cm x 2.5 cm have been studied. An 8-channel SiPManode readout ASIC (MUSIC R1) based on a novel low input impedance currentconveyor has been used to read out and amplify SiPMs independently and sum thesignals at the end. Prospects for applications in large-scale particle physicsdetectors with timing resolution below 100 ps are provided in light of theresults.