| タイトル | The ion-ion acoustic instability |
| 著者（英） | Omidi, Nojan; Gary, S. Peter |
| 著者所属（英） | Los Alamos National Lab.|California Univ. |
| 発行日 | 1987-02-01 |
| 言語 | eng |
| 内容記述 | This paper considers the linear theory of ion-acoustic-like instabilities in a homogeneous Vlasov plasma with two ion components, a less dense beam and a more dense core, with a relative drift velocity. Numerical solutions of the full electrostatic dispersion equation are presented, and the properties of the ion-ion acoustic instability are studied in detail. At relatively cold beam temperatures, the instability is fluid-like, but it becomes a beam resonant kinetic instability as the beam temperature becomes of the order of the core temperature; if the mode is unstable, its threshold lies well below the threshold of the electron-ion acoustic instability. An electron temperature anisotropy enhances the instability, and at sufficiently large beam-core relative drift speeds, electron magnetization can either detract from or enhance the instability. |
| NASA分類 | PLASMA PHYSICS |
| レポートNO | 87A38902 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/377890 |
|
