Stability of a Uniform Plasma Composed of Streams in the Absence of an External Field

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概要

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• By means of the collisionless Boltzmann equation and the Maxwell equations with no external field, it is shown that a plasma composed of streams is necessarily unstable for a transverse oscillation propagating perpendicularly to the streams. The instability is attributed to the bunching of the electric current density, corresponding to the bunching of the charge density in the usual two-stream instability which is accompanied by the excitation of a longitudinal oscillation. When the thermal motion of the particles in a stream is taken into account, the instability can be suppressed due to the thermal diffusion of the bunched current. For a transverse oscillation, a criterion of the stability is obtained.

• 核融合科学研究所の論文

著者

• Momota Hiromu

  Research Information Center Institute Of Plasma Physics Nagoya University

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