A novel trigger detector system using silicon photomultipliers shows significant reliability for charged particles, indicating its utility in high energy physics experiments.
A trigger detector system for charged particles designed to be used in high energy physics test beam experiments is presented. The purpose of a trigger detector is to send a signal to a more complex system that a particle has entered it. The construction includes two perpendicular layers with four plastic scintillators each. Such segmented design inherently allows for position sensitivity. Silicon photomultipliers, connected to specially designed boards, detect the emitted scintillation light. All of the described elements are held together by a 3D-printed plastic casing. A calibration was performed with a large set of cosmic muon data aiming to set a fixed most probable deposited energy value of 2 MeV in each scintillator. In addition, a Monte Carlo simulation was carried out to check the degree of reliability of the experimental results.
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Gencheva et al. (2025) studied this question.
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