Probabilistic distribution and noise factor of solid state photomultiplier signals,taking into account cross-talk processes |
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| Authors: | S L Vinogradov T R Vinogradova V E Shubin and D A Shushakov |
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| Institution: | (1) Helsinki Institute for Information Technology, University of Helsinki and Helsinki University of Technology, P.O. Box 68, 00014 Helsinki, Finland;(2) School of Computer Science, University of Birmingham, Birmingham, UK;(3) Division of Palaeontology, University of Helsinki, Helsinki, Finland |
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| Abstract: | Solid-state photomultipliers (SSPMs) are a new type of photodetectors based on avalanche breakdown of the semiconductor in
the Geiger mode, limited by negative feedback. Under such conditions, the avalanche breakdown is characterized by high multiplication
factors, 104–106, and low noise, which allows detection of single photons. However, in practice, each primary breakdown in the SSPM can be
accompanied by secondary breakdowns due to cross-talk processes which change the probabilistic distribution of the signal
and introduce excess noise. In this paper, the effect of cross-talk on signal and noise characteristics of SSPMs is considered
based on the generalized Poisson distribution. |
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