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Effects of electron‐absorbing boundaries on the plasma parameters of a hot‐filament discharge
Author(s) -
Jelić N.,
Schrittwieser R.,
Kuhn S.
Publication year - 2003
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.200310012
Subject(s) - plasma , anode , materials science , protein filament , atomic physics , electron , plasma parameters , electrode , physics , composite material , nuclear physics , quantum mechanics
Abstract In this paper we investigate theoretically and experimentally the plasma parameters in a double‐plasma device in the presence of an additional electron‐absorbing boundary. The latter is formed by an electrode of variable size immersed in the plasma. It is found that, depending on its size and bias potential, such an anode can considerably influence the plasma parameters. Good qualitative and fair quantitative agreement between theoretical predictions and laboratory measurements of the plasma parameters is found for various discharge conditions. In addition we discuss the consequences of our results with respect to the existence conditions of anode‐type double layers in double‐plasma devices.