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Surface waves in a plasma with an oscillating current II - Plasma surrounded by a sheath of infinite conductivity

V.P. Sidorov, V.S. Tsypin1970年Nuclear FusionIF 3出版社

The authors investigate surface waves excited in cold plasma by an oscillating current, considering cases where the plasma is bounded (plasma layer and plasma cylinder). It is physically clear that one has to take into account the actual geometry of the plasma configuration when the damping length of a surface wave is commensurate with the transverse dimensions of the plasma. The authors study the surface waves when the plasma is surrounded by a metallic sheath of infinite conductivity. The conditions are found for the build-up of three-dimensional surface waves and the corresponding expressions derived for their frequencies and growth rates.

日本語訳

著者らは、冷たいプラズマ中で振動電流によって励起される表面波を調査しており、プラズマが有界である場合(プラズマ層およびプラズマ円筒)を考察している。減衰長がプラズマの横方向の寸法と同程度である場合には、プラズマ形状の実際の幾何学的構造を考慮に入れなければならないことは物理的に明らかである。著者らは、プラズマが無限導電率の金属シースで囲まれている場合の表面波を研究している。三次元表面波の増幅条件が見出され、それらの周波数と成長率に対する対応する式が導出されている。

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