Effect of Magnetic Curvature on Density Gradient Drift Instabilities

スポンサーリンク

概要

• 論文の詳細を見る

• The effect of magnetic curvature on density gradient drift instabilities is examined for a collisionless plasma in which β satisfies m/M < β << 1,where β = plasma pressure / magnetic pressure, m and M are the electron and ion masses. For simplicity, the effect of magnetic curvature is simulated by an equivalent gravitational field. The present considerations are restricted to the cases where the wavelength of perturbations is much longer than the mean ion Larmor radius and the radius of magnetic curvature is much larger than the characteristic length of the density gradient. It is found that the slow Alfven mode which is unstable in a straight and parallel magnetic field is stabilized by magnetic curvature with a sign favorable to stabilization of the interchange instability while it remains unstable by unfavorable curvature, and that the fast Alfven mode remains stable independently of the sign of magnetic curvature.

• 核融合科学研究所の論文

著者

• Kitao Kazuo

  Research Information Center Institute Of Plasma Physics Nagoya University:department Of Physics Facu

関連論文

• Anomalous Penetration of an Ordinary Wave into a Magnetoplasma Slab
• Effects of a High-Frequency Electric Field on Micro-Instabilities Driven by Density Gradient
• Electrostatic Oscillations and Feedback Control of a Lossfree Plasma
• On the Physical Picture for the Anomalous Propagation of an Ordinary Wave in a Magnetoplasma
• Effect of Magnetic Curvature on Density Gradient Drift Instabilities

スポンサーリンク