Study of the internal mechanisms of Pixelized Photon Detectors operated in Geiger-mode

Details Study of the internal mechanisms of Pixelized Photon Detectors operated in Geiger-mode Study of the internal mechanisms of Pixelized Photon Detectors operated in Geiger-mode

2008-08-19

arxiv.org/abs/0808.2541v1

Physics

Instrumentation and Detectors

6pages, 7figures, submitted to Nucl. Instru. Methods, A

Scientific paper

In the 1990s, a novel semiconductor photon-sensor operated in Geiger-mode was invented in Russia (Silicon PhotoMultiplier), which consists of many tiny pixels and has a single photon level sensitivity. Since then, various types of the sensor with this scheme, Pixelized Photon Detectors (PPD), have been developed in many places in the world. For instance, Hamamatsu Photonics K.K. in Japan produces the PPD as a Multi-Pixel Photon Counter. While the internal mechanisms of the PPD have been intensively studied in recent years, the existing models do not succeeded to fully reproduce the output characteristic, such as waveforms at low temperature. We have developed a new model with the transient multiplication and quenching of the realistic avalanche process and have succeeded in reproducing the output waveform of the PPD at various temperature. In this paper, we discuss our improved model.

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