Abstract
Recent developments and results from the study of a Silicon Solid State Photomultiplier (Si-PM) are presented. The basis of this new type of photodetector is a fine structure of microcells operating in the Geiger mode with an internal gain greater than 10 6 . Common signal output allows for the detector to be operated in the proportional mode, and to reach a dynamic range of 1.5 × 10 3 . Such photodetectors have shown single photon response at room temperature with a fast timing of ∼ 100 ps. They are compact, robust and non-sensitive to magnetic fields. Results show the detection of low-intensity light in single photon mode and the detection of minimal ionizing particles using a scintillation tile for hadron calorimetry. The silicon photomultiplier is suitable for wide application in scintillation calorimetry, medical application, etc.
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