/ General Physics arXiv:0903.1161

Simulation of the Avalanche Process in the G-APD and Circuitry Analysis of the SiPM

Grebenyuk, V.M. (Dubna, JINR) ; Kalinin, A.I. (Dubna, JINR) ; Shat, Nguyen Manh (Dubna, JINR) ; Zhanusov, A.K. (Dubna, JINR) ; Bednyakov, V.A. (Dubna, JINR)

Pages: 9

Abstract: The discrete modeling of the Geiger-mode APD is considered. Results of modeling and experimental measurements with the SiPM show that the known formula for the charge of the avalanche pulse Q=dU*Cd underestimates its value. In addition, it is seen from the dynamic of the avalanche multiplication that the resistor Rq in photodiode, usually called a quenching resistor, in reality fulfills only the restoring function. The SiPM restoring time, taken into account the number of pixel N and the load resistance R, is T=Cd*(Rq+NR).

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 Record created 2010-10-29, last modified 2014-01-30

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