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Sagdeev Potential and Sheath Criterion for a Multi‐Component Plasma
Author(s) -
Alterkop B.,
Boxman R. L.
Publication year - 2006
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200610083
Subject(s) - plasma , component (thermodynamics) , inertia , physics , mechanics , electric potential , atomic physics , materials science , thermodynamics , classical mechanics , quantum mechanics , voltage
Abstract A charged sheath between a multi‐component plasma and an absorbing and conducting wall was considered analytically in the framework of a hydrodynamic model. The model accounted for the inertia and pressures of all the plasma components and both wall polarities. An existence criterion for the steady sheath with a monotonous distribution of the electric potential was derived based on analysis of the Sagdeev potential. The model was applied to some special cases of two‐and three‐component plasmas such as a plasma with macroparticles, and electro‐positive and ‐negative plasmas. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)