Abstract
The energy distribution of secondary electrons in electron-impact ionization of ions is important in computer simulation of high temperature plasmas. Surprisingly enough, no one has published the required data. In this paper, the Coulomb-Born type calculations with and without electron-exchange effect are reported. The 1/ Z 4 scaling law holds fairly well down to smaller Z values, Z being the nuclear charge of the hydrogen-like target ion. The dependence on the incident electron energy is represented fairly accurately by an empirical factor in the approximation without electron exchange.
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