Understanding the focusing of charged particle beams in a solenoid magnetic field
Understanding the focusing of charged particle beams in a solenoid magnetic field
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DOI：
10.1119/1.3129242
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发表时间：
2009-07
影响因子：
0.9
通讯作者：
Vinit Kumar
中科院分区：
文献类型：
--
作者：
Vinit Kumar
电磁阀中带电粒子束的聚焦通常通过调用拉莫尔框架的概念和使用布希定理来解释。通常，对于长螺线管的均匀磁场如何聚焦电子束存在一些困惑，因为人们通常认为均匀磁场只能引导带电粒子。我们对螺线管中带电粒子束的动力学进行了简单的分析，并强调对一些有趣特征的直观理解。
The focusing of a charged particle beam in a solenoid is typically explained by invoking the concept of a Larmour frame and using Busch’s theorem. Often, there is some confusion about how a uniform magnetic field of a long solenoid focuses the electron beam because it is generally understood that a uniform magnetic field can only guide charged particles. We perform a simple analysis of the dynamics of a charged particle beam in a solenoid and emphasize an intuitive understanding of some of the interesting features.