航天器环境工程2024，Vol.41Issue(2)：219-224,6.DOI:10.12126/see.2023145
多层球形二次电子测量装置的栅网电子透过率仿真研究
Simulation study on electron transmittance through grid for a multi-layer spherical secondary electron measurement device
摘要
Abstract
To accurately measure the secondary electron yield(SEY)is of great significance for studying the charge and discharge of spacecraft surface materials.The electron transmittance through grid in the secondary electron measurement device is an important factor affecting the measurement accuracy of the SEY of materials.In this paper,the causes of influencing the electron transmittance through grid in a multi-layer spherical SEY measurement device was simulated by calculation,and the geometry parameters of grid were optimized.The results show that the grid bias exhibits little effect on the electron transmittance through grid,whereas the grid geometry parameters are the main influencing factor.When the grid wire is 0.025 mm in diameter and the grid spacing is 1 mm,the electron transmittance reaches the maximum.The proposed research may provide a reference for optimizing the design of SEY measurement device.关键词
二次电子测量/二次电子发射系数/栅网电子透过率/仿真计算Key words
secondary electron measurement/secondary electron yield(SEY)/electron transmittance through grid/simulation calculation分类
数理科学引用本文复制引用
刘斯盛,陈宝华,齐鑫,彭卫平,杜嘉余,马彦昭,张涛..多层球形二次电子测量装置的栅网电子透过率仿真研究[J].航天器环境工程,2024,41(2):219-224,6.基金项目
中国航天科技集团应用创新计划项目(编号:6230114001) （编号:6230114001）
可靠性与环境工程技术重点实验室基金项目(编号:6142004210201) （编号:6142004210201）
