| 地球磁层中粒子投掷角扩散特性 |
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| 引用本文： | 肖伏良,周庆华,李君求.地球磁层中粒子投掷角扩散特性[J].长沙理工大学学报(自然科学版),2006,3(3):98-101. |
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| 作者姓名： | 肖伏良 周庆华 李君求 |
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| 作者单位： | 长沙理工大学,物理与电子科学学院,湖南,长沙,410076 |
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| 摘 要： | 研究了地球磁层中粒子投掷角扩散过程，分析了强扩散、弱扩散和一般扩散等特性．计算结果表明，在强扩散过程中，粒子填满整个损失锤区域；而对于弱扩散过程，损失锤区域粒子数很少．此结果可解释带电粒子在地球磁暴时，由于投掷角扩散而向大气层发生沉降的观测现象．
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| 关 键 词： | 投掷角扩散 带电粒子 磁暴 |
| 文章编号： | 1672-9331（2006）03-0098-04 |
| 收稿时间： | 2006-05-19 |
| 修稿时间： | 2006-05-19 |
The pitch angle scattering of particles in the magnetosphere |
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| XIAO Fu-liang,ZHOU Qing-hua,LI Jun-qiu.The pitch angle scattering of particles in the magnetosphere[J].Journal of Changsha University of Science and Technology:Natural Science,2006,3(3):98-101. |
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| Authors: | XIAO Fu-liang ZHOU Qing-hua LI Jun-qiu |
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| Institution: | College of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410076, China |
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| Abstract: | The pitch angle scattering of particles is studied in the magnetosphere for three cases:the strong scattering,the weak scattering and the regular scattering.It is found that in the case of the strong scattering,particles can fill in the whole loss cone,whereas,in the case of weak scattering,the loss cone is almost empty.The results may explain the observation that particles precipitate into the atmosphere during the magnetospheric storms. |
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| Keywords: | pitch angle scattering particles storms |
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