| Penning阱中离子运动的分析 |
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| 引用本文： | 刘名扬,任晓斌,张民.Penning阱中离子运动的分析[J].物理实验,2007,27(9):38-39,41. |
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| 作者姓名： | 刘名扬 任晓斌 张民 |
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| 作者单位： | 1. 装甲兵工程学院,基础部,北京,100072
2. 北京师范大学,物理系,北京,100875 |
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| 摘 要： | 根据Penning离子阱结构及电磁场分布特点,列出阱内离子运动方程并进行求解,对其中沿z轴运动和在xy平面上的运动进行详细分析,最后得到比荷为m/q的离子在Penning阱内的运动为沿磁场方向的简谐振动、绕磁感线旋转的回旋运动和垂直于z轴及径向绕z轴的漂移运动的叠加.
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| 关 键 词： | Penning阱 简谐振动 回旋运动 漂移运动 |
| 文章编号： | 1005-4642（2007）09-0038-02 |
| 修稿时间： | 2007-05-172007-06-12 |
Analysis on ion movement in Penning ion trap |
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| LIU Ming-yang,REN Xiao-bin,ZHANG Min.Analysis on ion movement in Penning ion trap[J].Physics Experimentation,2007,27(9):38-39,41. |
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| Authors: | LIU Ming-yang REN Xiao-bin ZHANG Min |
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| Institution: | 1. Department of Fundamental Courses, Academy of Armored Force Engineering, Beijing 100072, China;2. Department of Physics, Beijing Normal University, Beijing 100875, China |
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| Abstract: | Based on the structure of Penning ion trap and the distributing characteristic of electromagnetic field,ion motion equation is written out and resolved.The motions along z-axis and on the x-y plane are analyzed in detail.Then it is found that in penning ion trap the ion with charge mass ratio m/q does resultant motion composed by simple harmonic vibration along magnetic field,gyro motion around magnetic induction line and floating motion perpendicular to the z-axis and around z-axis. |
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| Keywords: | Penning ion trap simple harmonic vibration gyro motion floating motion |
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