线-板电晕放电离子源的结构设计和稳定性研究

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• 英文论文题名：Structure Design and Stability of Wire-plate Corona Discharge for Ion Source
• 论文作者：夏清 ; 缪劲松 ; 欧阳吉庭
• 英文论文作者：XIA Qing ; MIAO Jinsong ; OUYANG Jiting ; School of Physics ; Beijing Institute of Technology
• 年：2015
• 作者机构：北京理工大学物理学院;
• 论文关键词：离子源 ; 线-板结构 ; 电晕放电 ; 离子流
• 英文论文关键词：ion source ; wire-plate structure ; corona discharge ; ion flow
• 会议召开时间：2015-08-12
• 会议录名称：静电放电：从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议论文集
• 语种：中文
• 分类号：TH83;O461
• 学会代码：WLJD
• 会议名称：静电放电 ; 从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议
• 会议地点：中国河北石家庄
• 主办单位：中国物理学会静电专业委员会
• 学会名称：中国物理学会静电专业委员会
• 页数：5
• 文件大小：719k
• 原文格式：D
• 会议级别：全国

摘要

本文采用线-板电极结构,研究了电晕离子源的放电特性,得到放电电极配置与起始放电电压,以及驱动电压和法拉第盘接收的离子流的关系。设计了基于线-板电晕离子源的离子迁移谱仪,并验证了这种离子源的有效性。通过对放电装置的设计,实现了对到达法拉第盘上的离子流流量的直接测量,探究了不同线-板间距下的电晕放电伏安特性曲线以及离子流随驱动电压的变化,并在分析比较的基础之上设计了适用于离子迁移谱仪的离子源结构。对正负直流电压驱动、针-板结构与线-板不同结构离子源特性的探究表明:本文设计的装置能够有效测量法拉第盘接收的离子流;相比于针-板结构,线-板结构的离子源更加有利于提高离子迁移谱仪的分辨率。
In this paper,wire plate electrode structure is adopted,the discharge characteristic of the corona ion source is studied.The relationship between the discharge electrode configuration and the voltage where discharge starts is obtained,as well as the relationship between the voltage and the ion flow the Faraday catches.The ion mobility spectrometer based on the wire plate corona ion source is designed,and the validity of the ion source is verified.First,the discharge device is designed,and the direct measurement of the ion flow is realized;Second,the V-A curve of the corona discharge in different line-plate space is explored,as well as the relationship between the voltage and the ion flow;Finally,the characteristics of the ion source created by both negative and positive DC voltage was explored,and the difference between needle-plate and wire-plate structure are also compared.The results show that the device designed in this paper can effectively measure the ion current of Faraday plate,and compared with the needle plate structure,the ion source of the wire plate structure is more advantageous for improving the resolution of ion mobility spectrometer.

引文

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