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Antenna sheaths in a dusty plasma
Author(s) -
Lonngren Karl E.
Publication year - 1991
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650041104
Subject(s) - plasma , electron , dusty plasma , langmuir probe , physics , ion , antenna (radio) , atomic physics , homogeneous , plasma diagnostics , electrical engineering , engineering , quantum mechanics , thermodynamics
The 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.