| 有限磁场作用下等离子体圆柱波导中的线性理论 |
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| 引用本文： | 李伟,魏彦玉,刘盛纲. 有限磁场作用下等离子体圆柱波导中的线性理论[J]. 强激光与粒子束, 2001, 13(5): 641-645 |
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| 作者姓名： | 李伟 魏彦玉 刘盛纲 |
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| 作者单位： | 电子科技大学 高能电子学研究所, 四川 成都 610054 |
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| 基金项目： | 国家自然科学基金资助课题 (69493 5 0 0 ) |
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| 摘 要： | 考虑了有限磁场的作用,利用“匹配场法”推导出填充环形等离子体时圆柱波导的色散方程,并较详细地讨论了等离子体的厚度、密度, 以及所加磁场强度对色散特性的影响。尤其讨论了等离子体厚度对增长率的影响并得出：对应最大的增长率有一最佳的等离子体厚度。
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| 关 键 词： | 环形等离子体 色散方程 有限磁场 波增长率 |
| 文章编号： | 1001-4322(2001)05-0641-05 |
| 收稿时间： | 2001-04-13 |
| 修稿时间： | 2001-04-13 |
Linear theory of plasma cylindrical waveguide in a finite magnetic field |
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| LI Wei,WEI Yan yu,LIU Sheng gang. Linear theory of plasma cylindrical waveguide in a finite magnetic field[J]. High Power Laser and Particle Beams, 2001, 13(5): 641-645 |
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| Authors: | LI Wei WEI Yan yu LIU Sheng gang |
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| Affiliation: | Institute of High Energy Electronics, University of Electronic Science and Technology, Chengdu 610054, China |
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| Abstract: | The dispersion equation on a cylindrical waveguide having an annular plasma sheet is derived under the condition of limited magnetic field. The different plasma density, thickness, and field intensity influence to the plasma frequency, especially the influences of plasma thickness on depressive characteristics and interaction growth rate are discussed, and the conclusion is obtained that there is a perfect thickness to get the biggest interaction rate. |
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| Keywords: | annular plasma dispersion equation finite magnetic field growth rate of the wave |
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