Abstract

AbstractThe region of charge nonneutrality surrounding a metal antenna that is inserted in an infinite homogeneous plasma is called a plasma sheath. Sheaths form in several time scales that are determined by the electron and the ion plasma periods until an eventual steady‐state Langmuir sheath forms. This article describes the sheaths surrounding an antenna in a dusty plasma consisting of electrons, ions, and heavy dust particles to which electrons have attached themselves. Such a plasma is found in active comets and in the rings surrounding several planets in the solar system and in rings around mature stars.

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