engleski

The Fano factor for electrons in gas mixtures

Data on statistical fluctuations of ionization yield, or the Fano factor, for elecrtons in gas mixtures are systematized. Empirical results indicate that the Fano factor for electrons in a regular mixture, Fmix, can be represented by the Fano factors FA and FB for the pure components: Fmix = (FA - FB)z + FB, where z in an energy partition parameter. Good agreement between Fmix thus calculated and experimental or theoretical Fano factors is obtained for binary mixtures, while the difference between the measured Fano factor and Fmix is about 10% for tissue-equivalent gas mixtures.

Fano factor ; electrons ; gas mixtures

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