10kV太空电子枪的光学系统设计及仿真研究  

Design and simulation of the optical system of 10kV space electron gun

作　　者：陈鹤 董全林[1] 邵静怡[2] 刘洋洋 王军伟[2] 裴一飞[2] CHEN He;DONG Quanlin;SHAO Jingyi;LIU Yangyang;WANG Junwei;PEI Yifei(School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China;Beijing Institute of Spacecraft Environment Engineering,Beijing 100094,China)

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191 [2]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2021年第2期148-152,共5页Spacecraft Environment Engineering

基　　金：北京卫星环境工程研究所创新基金项目(编号:CAST-BISEE 2019-040)。

摘　　要：为使电子枪的性能满足太空环境下的作业要求,对10 kV太空电子枪的光学系统进行设计与仿真研究,给出一套完整的设计方法及流程。首先选择合适的阴极材料,仿真得到电子束的轨迹;而后算出合适的焦距,对一级聚焦电子光学系统进行仿真。鉴于一级聚焦系统不能实现在工作距离为300 mm时束斑直径为0.4 mm的设计目标,进而设计二级聚焦系统并利用仿真分析对系统参数进行优化。仿真分析结果表明,该设计方法能够得到符合工作需求的电子光学系统参数,可为以后太空电子枪的设计提供参考。According to the performance requirement of the electron gun to be worked in the space environment,the optical system of 10 kV space electron gun is designed,along with simulation analysis.Firstly,the trajectory of the electron beam is obtained through the simulation with the proper cathode material.Then,the appropriate focal length is determined and a single-lens focusing system is simulated.In view of the restriction of the capability of the single-lens focusing system,a two-lens focusing system is designed to meet the requirements.A complete set of design methods and processes is given in this paper.The simulation results show that by the above methods,the electro-optical parameters can be optiized to meet the engineering requirements.This research can help the future design of space electron guns.

关 键 词：太空电子枪 聚焦系统 光学系统 电子束 仿真分析 

分 类 号：O463.1[机械工程—光学工程] TB115[理学—电子物理学]