基于螺线盘与永磁体聚焦径向电子束的研究

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• 英文论文题名：The Analysis of the Focusing of Radial Beam Based on Plane Coils and Permanent Magnet
• 论文作者：孔龙 ; 刘庆想 ; 王少萌 ; 李相强 ; 鲁合德
• 英文论文作者：KONG Long ; LIU Qing-xiang ; WANG Shao-meng ; LI Xiang-qiang ; LU He-de ; School of Physical Science and Technology ; Southwest Jiaotong University
• 年：2014
• 作者机构：西南交通大学物理科学与技术学院;
• 论文关键词：径向电子束 ; 引导磁场 ; 螺线盘 ; 永磁体 ; 传输特性
• 英文论文关键词：radial beam ; guiding magnetic field ; plane coils ; permanent magnet ; transmission characteristic
• 会议召开时间：2014-07-21
• 会议录名称：2014年全国电磁兼容与防护技术学术会议论文集（上）
• 语种：中文
• 分类号：TN101
• 学会代码：WBXB
• 会议名称：2014年全国电磁兼容与防护技术学术会议
• 会议地点：中国湖南常德
• 主办单位：中国电子学会微波分会、中国工程物理研究院复杂电磁环境科学与技术重点实验室、总装备部电磁兼容及防护技术专业组、天线与微波技术重点实验室
• 学会名称：《微波学报》编辑部
• 页数：4
• 文件大小：496k
• 原文格式：D
• 会议级别：全国

摘要

本文首先对径向电子束在浸没式聚焦条件下的传输特性进行了理论分析,得到了束流传输过程中轴向扩张幅值与外加引导磁场强度关系之间的解析表达式,接下来分别阐述了螺线盘和轴向磁化的永磁环在空间中产生磁场的分布规律,最后设计了一种基于螺线盘和永磁体混合聚焦径向电子束的引导磁场系统,仿真研究了径向电子束在该引导磁场系统产生的磁场下稳定传输时的束轨迹。
The transmission characteristic of radial beam under an immerse focusing magnetic field is analyzed in this paper, and the expression of beam's axial expansion with the magnetic field intensity is derived theoretically. Then the magnetic field generated by a pair of plane with different current direction and permanent magnet is discussed separately. At last, The magnetic field system based on the plane coils and permanent magnet is designed, with the particle trajectory simulated under stable transmission. Then the theory of magnetic field generated by coils at any point in the space, with the law of magnetic field distribution in a pair of plane coils with different current direction is given. A kind of guiding magnetic field system based on plane coils is designed. The distribution of the magnetic field generated by the guiding magnetic field system along the beam channel and the particle trajectory under stable transmission is researched through simulation.

引文

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