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Coupling between electromagnetic and electron waves in a plasma

W. P. Allis, S. J. Buchsbaum1960年被引用 2Nuclear FusionIF 3出版社

The coupling between electromagnetic and electron plasma waves in a uniform plasma in the presence of a static magnetic field is studied. The transport equations are used to represent the plasma and Maxwell's equations to represent the fields. These yield a dispersion relation which is discussed here only for ions of infinite mass. Eight topologically different phase velocity surfaces suffice to represent the system of combined electromagnetic and electron waves for all values of plasma density and magnetic field strength. The plasma waves have cutoffs (phase velocity infinite) wherever the electromagnetic wave has a resonance (phase velocity zero); the coupling between the two waves is strong there and their respective velocity surfaces join smoothly one onto the other. Elsewhere the waves are distinct.

日本語訳

一様プラズマ中における、静磁場の存在下での電磁波と電子プラズマ波の間の結合が研究される。輸送方程式がプラズマを表すために用いられ、マクスウェル方程式が場を表すために用いられる。これらは分散関係を与えるが、ここでは無限大の質量のイオンの場合についてのみ議論される。8つの位相的に異なる位相速度面が、プラズマ密度と磁場強度のすべての値に対して、電磁波と電子波を組み合わせた系を表すのに十分である。プラズマ波は、電磁波が共鳴(位相速度ゼロ)を持つところではどこでも遮断(位相速度無限大)を持つ。そこでは2つの波の間の結合は強く、それらのそれぞれの速度面は互いに滑らかに接続する。他の場所では、波は明確に区別される。

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