激光触发多级多通道开关研究  

Study on the laser triggered multi-stage and multi-channel switch

作　　者：李洪涛[1] 丁伯南[1] 谢卫平[1] 邓建军[1] 王玉娟[1] 秦卫东[1] 傅贞[1] 万步勇[1] 王厚明[1] 龚德森[1] 任靖[1] 孟维涛[1] 丁胜[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《强激光与粒子束》2003年第7期708-712,共5页High Power Laser and Particle Beams

基　　金：中国工程物理研究院基金资助课题(2000 0210)

摘　　要：　研究了200kV激光触发多级多通道开关的运行机理,该开关在直流电压下以四倍频Nd:YAG激光器为触发源进行的实验结果表明:开关触发延迟时间及其抖动随开关电压、激光能量和充气压力上升呈指数下降趋势,对混合气体则随气体密度上升而上升。随透镜焦距的增大延迟时间及其抖动呈上升趋势。该开关实现了多通道放电。This paper reported the design and experimental results of a 200kV laser triggered multistage and multichannel switch. When a quadruple Nd:YAG laser set was used as a trigger source, it was found that the delay decreased exponentially as the charging voltage, pressure or the energy of laser pulse increased when N2 was filled in gaps. The delay increased as the density of SF6N2 mixtures increased and as the focal length of lens increased for N2, but it is not obvious for SF6N2 mixture. The discharging phenomenon of multichannel was observed. 

关 键 词：激光触发 多级多通道开关 运行机理 ND:YAG激光器 多通道放电 脉冲功率技术 

分 类 号：TN248[电子电信—物理电子学] TN78