| 磁透镜焦距的计算 |
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| 引用本文： | 韩运侠,朱景成.磁透镜焦距的计算[J].洛阳师范学院学报,2007,26(5):53-54. |
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| 作者姓名： | 韩运侠 朱景成 |
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| 作者单位： | 洛阳师范学院物理与电子信息学院,河南洛阳,471022 |
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| 摘 要： | 本支计算了短线圈内的磁场分布,讨论了近轴条件下电子在磁场中的运动,根据光学焦距的定义,推导出了磁透镜的焦距公式。
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| 关 键 词： | 磁聚焦 磁透镜 焦距 进轴条件 |
| 文章编号： | 1009-4790（2007）05-0053-02 |
| 修稿时间： | 2007-06-06 |
Computation of The Magnetic Lens Focal Distance |
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| HAN Yun-xia,ZHU Jing-cheng.Computation of The Magnetic Lens Focal Distance[J].Journal of Luoyang Teachers College,2007,26(5):53-54. |
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| Authors: | HAN Yun-xia ZHU Jing-cheng |
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| Institution: | College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, China |
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| Abstract: | This paper calculates the magnetic field distribution of short coil,The electronic in magnetic field movement under the near axis condition is discussed.According to optics focal distance definition.The mag- netic lens focal distance formula is derived. |
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| Keywords: | magnetic focusing magnetic lens focal distance near axis condition |
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