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arXiv · 1506.06356

Absorption of an electron by a dielectric wall

Franz X. Bronold·Holger Fehske
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Abstract

We introduce a method for calculating the probability with which a low-energy electron hitting the wall of a plasma gets stuck in it and apply the method to a dielectric wall with positive electron affinity smaller than the bandgap using MgO as an example. In accordance with electron beam scattering data we obtain energy-dependent sticking probabilities significantly less than unity and question thereby for electrons the perfect absorber assumption unisono used in plasma modeling.

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Franz X. Bronold, Holger Fehske. 2015-06-21. Absorption of an electron by a dielectric wall. https://doi.org/10.1103/physrevlett.115.225001

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