| 弱相对论捕获电子哨声模不稳定性 |
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| 引用本文： | 卞伯达,林景,郭世宠,蔡诗东.弱相对论捕获电子哨声模不稳定性[J].物理学报,1990,39(2):218-224. |
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| 作者姓名： | 卞伯达 林景 郭世宠 蔡诗东 |
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| 作者单位： | (1)福州大学物理系,福州,350002; (2)中国科学院物理研究所,北京,100080,中国高等科学技术中心(世界实验室) |
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| 基金项目： | 国家自然科学基金资助的课题 |
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| 摘 要： | 本文讨论了弱相对论的捕获电子在磁镜位形中对哨声波不稳定性的影响。在简化的箱子模型下,用摄动法求解了带有弱相对论捕获电子效应的本征方程。发现各向异性热电子可以驱动哨声模不稳定性,而相对论效应使不稳定性的各向异性阈值升高,增长率的最大值减小并使不稳定性向低频方向移动。
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| 关 键 词： | 弱相对论 电子 捕获 哨声模 稳定性 |
| 收稿时间： | 1989-04-10 |
WHISTLER INSTABILITY WITH WEAKLY RELATIVISTIC TRAPPED ELECTRONS |
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| BIAN BO-DA,LIN JING,GUO SHI-CHONG and CAI SHI-DONG.WHISTLER INSTABILITY WITH WEAKLY RELATIVISTIC TRAPPED ELECTRONS[J].Acta Physica Sinica,1990,39(2):218-224. |
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| Authors: | BIAN BO-DA LIN JING GUO SHI-CHONG and CAI SHI-DONG |
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| Abstract: | The effects of weakly felativistic trapped electrons on whistler instability in the magnetic-mirror configuration are studied. Using the simplified box model(1) the eigen equation is solved with perturbative approach including the weakly relativistic trapped effects. It is found that whistler instability can be driven by the anisotropic hot electrons, while relativisity increases the threshold value of instability and descreases the growth rate as well as makes the unstable modes shifting to low frequency. |
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