太赫兹科学与电子信息学报2026，Vol.24Issue(6)：745-750,6.DOI:10.11805/TKYDA2025118
离子辐照改性金属二次电子发射的模拟研究
Simulation study on secondary electron emission of metal modified by ion irradiation
摘要
Abstract
In the fields of spacecraft,particle accelerators,microwave devices and electric vacuum devices,the secondary electron emission characteristics of metal materials are one of the key factors affecting equipment and devices,so the research on its modification methods and technologies has important scientific research significance and broad application prospects.It is a potential technical method to modify the secondary electron emission characteristics of metal materials by metal ion beam irradiation.In this paper,the changes of secondary electron emission characteristics of copper under different irradiation effects such as surface morphology,internal defects and ion implantation are simulated by Monte Carlo method.The results show that surface pit defects are a significant factor to inhibit the secondary electron emission yield of metal materials,which can be reduced by more than 70%,while surface peak morphology can enhance the secondary electron emission coefficient,which can be increased by more than 60%.The suppression effect of internal defects on secondary electron emission is relatively weak,only about 13%.The inhibition effect of ion implantation will only be effective on the shallow surface,which is similar to plating a film with low emissivity on the metal surface.The research results provide guidance for the design of ion beam irradiation modification technology for secondary electron emission characteristics of metal materials.关键词
离子束辐照/二次电子发射改性/表面形貌/内部缺陷/离子注入Key words
ion beam irradiation/secondary electron emission modification/surface morphology/internal defects/ion implantation分类
数理科学引用本文复制引用
赵伟,何佳龙..离子辐照改性金属二次电子发射的模拟研究[J].太赫兹科学与电子信息学报,2026,24(6):745-750,6.基金项目
国家自然科学基金资助项目(NSFC12005207) （NSFC12005207）
中央引导地方资金科技创新基地资助项目(2023ZYDF072) （2023ZYDF072）
