Scattering of electromagnetic waves by drift vortex in plasma
文献类型：期刊论文
| 作者 | Wang Dong; Chen Yinhua; Wang Ge |
| 刊名 | PLASMA SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 10页码:1-7 |
| 关键词 | dipole-electrostatic drift vortex scattering of electromagnetic wave scattering cross-section radar wave |
| ISSN号 | 1009-0630 |
| 英文摘要 | In a quasi-two-dimensional model, the scattering of incident ordinary electromagnetic waves by a dipole-electrostatic drift vortex is studied with first-order Born approximation. The distribution of the scattering cross-section and total cross-section are evaluated analytically in different approximate conditions, and the physical interpretations are discussed. When the wavelength of incident wave is much longer than the vortex radius (k(i)a << 1), it is found that the angle at which the scattering cross-section reaches its maxim depends significantly on the approximation of the parameters of the vortex used. It is also found that the total scattering cross-section has an affinitive relation with the parameters of the plasma, while it is irrelevant to the frequency of the incident wave in a wide range of parameters of the vortex. In a totally different range of parameters when incident wave is in the radar-frequency range (then k(i)a << 1, the wavelength of incident wave is much shorter than the vortex radius), the numerical procedure is conducted with computer in order to obtain the distribution and the total expression of the scattering cross-section. Then it is found that the total scattering cross-section in the low frequency range is much larger than that in high frequency range, so the scattering is more effective in the low frequency range than in high frequency range. |
| WOS关键词 | VORTICES |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000253823800001 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://119.78.100.186/handle/113462/29682]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wang Dong |
| 作者单位 | Univ Sci & Technol China, Dept Modern Phys, Key Lab Basic Plasma Phys, Chinese Acad Sci, Anhua 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Dong,Chen Yinhua,Wang Ge. Scattering of electromagnetic waves by drift vortex in plasma[J]. PLASMA SCIENCE & TECHNOLOGY,2008,10:1-7. |
| APA | Wang Dong,Chen Yinhua,&Wang Ge.(2008).Scattering of electromagnetic waves by drift vortex in plasma.PLASMA SCIENCE & TECHNOLOGY,10,1-7. |
| MLA | Wang Dong,et al."Scattering of electromagnetic waves by drift vortex in plasma".PLASMA SCIENCE & TECHNOLOGY 10(2008):1-7. |
入库方式： OAI收割
来源：近代物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。