Recommended Practice for Use of Electrostatic Analyzers in Electric Propulsion Testing
Recommended Practice for Use of Electrostatic Analyzers in Electric Propulsion Testing
复制标题
在电力推进测试中使用静电分析仪的推荐实践
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
John D. Williams
中科院分区：
文献类型：
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作者：
C. Farnell;C. Farnell;Shawn C. Farnell;John D. Williams
静电分析仪用于电力推进，以测量离子和电子束的每单位电荷能量E/q分布：例如，在推进器的下游区域。本文概述了最基本的，但最广泛使用的静电分析仪设计类型。分析仪分为两类：1）反射镜型分析仪，2）偏转器型分析仪。常见的镜式检偏器有平行板镜检偏器和柱面镜检偏器。对于偏转器型分析器，首先描述了广义的环形类型，并作为特例讨论了常用的圆柱形偏转器和球形偏转器分析器。介绍了静电分析仪能量分辨率的计算方法，这是比较静电分析仪的一种常用方法。本文给出了球形偏转分析器的离子能量分布，比较了1）粒子能量，2）粒子角度，3）入口和出口几何形状，4）入射角和入射角的变化。
Electrostatic analyzers are used in electric propulsion to measure the energy per unit charge E/q distribution of ion and electron beams: in the downstream region of thrusters, for example. This paper serves to give an overview of the most fundamental, yet most widely used, types of electrostatic analyzer designs. Analyzers are grouped into two classifications: 1) mirror-type analyzers, and 2) deflector-type analyzers. Common mirror-type analyzers are the parallel-plate mirror analyzer and the cylindrical mirror analyzer. For deflector-type analyzers, a generalized toroidal type is first described and the commonly used cylindrical deflector and spherical deflector analyzers are discussed as special cases. The procedure for energy resolution calculations of electrostatic analyzers is described, which is a common way of comparing analyzers. Ion energy distributions from a spherical deflector analyzer are presented, comparing variations in 1) particle energy, 2) particle angle, 3) the entrance and exit geome...