电子辐照介质表面电荷分布测量研究  

INVESTIGATION OF SURFACE CHARGE DISTRIBUTION OF DIELECTRIC UNDER ENERGETIC ELECTRON BEAM IRRADIATION

作　　者：汤道坦[1] 李得天[1] 柳青 李存惠[1] 秦晓刚[1] 杨生胜[1] 陈益峰[1] 

机构地区：[1]兰州空间技术物理研究所真空低温技术与物理重点实验室 [2]空间环境材料行为及评价技术重点实验室,甘肃兰州730000

出　　处：《真空与低温》2013年第2期82-84,共3页Vacuum and Cryogenics

基　　金：基金项目:51311060405

摘　　要：在轨航天器与空间等离子体相互作用,可引起静电荷在卫星表面积累,产生静电放电,影响航天器的安全运行。基于静电电容原理,设计了表面电荷测量装置,并针对航天器常用的表面介质材料,利用建立的表面电荷测量装置,开展电子束辐照下表面电荷分布测量研究。研究结果可为表面带电效应的深入研究提供手段和参考。The interaction of space plasma and spacecraft can produce charge accumulation on spacecraft surface dielectric material then cause discharge, which are the major cause of spacecraft abnormities on orbit. In order to further understand the spacecraft charging, based on electrostatic capacitance principle this paper describes an improved method which could measure the charge distribution on dielectric under irradiating of Energetic Electron Beam. Then with this method the charge distribution on dielectric surface of satellites is measured under energetic electron beam irradiation. The work can provide the perspective of the spacecraft charging problem.

关 键 词：空间等离子体 表面带电 表面电荷测量 静电电容探针 

分 类 号：O432[机械工程—光学工程]