Effect of Magnetic Curvature on Density Gradient Drift Instabilities
-
- KITAO Kazuo
- Research Information Center, Institute of Plasma Physics, Nagoya University Department of Physics, Faculty of Science, Niigata University
この論文をさがす
説明
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.
収録刊行物
-
- Research report
-
Research report 76 1-13, 1968-10
核融合科学研究所
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1570009751885078144
-
- NII論文ID
- 110000011016
-
- NII書誌ID
- AA0081640X
-
- ISSN
- 04694732
-
- 本文言語コード
- en
-
- データソース種別
-
- CiNii Articles