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A phenomenological model is offered for the mechanism of a drastic increase in the desorption flow density of the native metal atoms under the influence of a high-power density (∼107 W/cm2) electron flux incident on the metal surface. The possibility is discussed of building an electron-optical system capable of producing a submicron probe of a ∼107 W/cm2 power density.

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The electron beam ablation phenomenon is investigated on the basis of the general thermodynamic representations about power balance of absorption and dissipation energy processes in conditions of interaction of the concentrated energy flux with a condensed substance. It is shown that at high levels of absorbed power density, exceeding energy dissipation speed by the heat conductivity mechanism, the fast phase transition of a condensed substance in dense plasma can take place (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)