| 空心阴极磁约束氦放电中电子运动计算机模拟 |
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| 引用本文： | 陈永洲,陈清明,赖建军,李军. 空心阴极磁约束氦放电中电子运动计算机模拟[J]. 华中科技大学学报(自然科学版), 1998, 0(9) |
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| 作者姓名： | 陈永洲 陈清明 赖建军 李军 |
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| 作者单位： | 邮电部武汉邮电科学研究院系统部，华中理工大学激光技术国家重点实验室 |
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| 摘 要： | 采用ＭｏｎｔｅＣａｒｌｏ方法，模拟了磁场影响下矩形空心阴极放电中电子的运动及其产生非弹性碰撞情况，得到了终止条件下电子的能量分布、空间分布，以及离子的空间分布．磁场的引入改变了电子的行程和产生各种非弹性碰撞的次数与位置，影响了整个放电过程．电子的各种参数分布的差异，正是由少数非弹性碰撞决定的．通过模拟得到：在恰当的磁场强度下，可改变电子的位置和能量分布，使总的离化数增加，改变负辉区和阴极位降区的离子分布，这对于更有效地控制激励、溅射和转荷反应过程，稳定放电有一定的指导意义．
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| 关 键 词： | 计算机模拟；空心阴极放电；磁约束放电 |
Computer Simulation of the Electron Motion in a Helium Hollow Cathode Discharge Confined by a Magnetic Field |
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| Chen Yongzhou Chen Qingming Lai Jianjun Li Jun. Computer Simulation of the Electron Motion in a Helium Hollow Cathode Discharge Confined by a Magnetic Field[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1998, 0(9) |
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| Authors: | Chen Yongzhou Chen Qingming Lai Jianjun Li Jun |
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| Affiliation: | Chen Yongzhou Chen Qingming Lai Jianjun Li Jun |
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| Abstract: | The electron motion confined by a transverse magnetic field in a hollow cathode discharge is investigated. Some swarm parameters are obtained such as the energy and the spatial distribution in the terminative condition. Due to the existence of a transverse magnetic field, the motion of electrons are changed and thus all kinds of the inelastic collision are different from the one in the zero magnetic field. The results from the simulation show that the swarm parameters can be changed when the magnetic field intensity chosen fitly. |
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| Keywords: | computer simulation hollow cathode discharge discharge confined by magnetic field |
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