Abstract

The multiplication process in open-type continuous-dynode electron multipliers (channel electron multipliers, microchannel plates) is considered as a Markov process that is continuous in time (channel length) and discrete in space (number of electrons in the channel). As a result of this consideration, the relationships for the mean gain and the probability distributions of the number of electrons at the channel output in the saturated and nonsaturated operating modes were obtained. The relationships are in good agreement with the measured dependences of the gain on the power-supply voltage and the distributions of the number of electrons at the channel output.

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