高库仑量大电流两电极气体火花开关研究  

High Coulomb and high current gas spark switch

作　　者：郭良福[1] 周圣[2] 李志鹏[2] 何孟兵[2] 力一峥[1] 赖贵友[1] 陈德怀[1] 周丕璋[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]华中科技大学电气学院,武汉430074

出　　处：《强激光与粒子束》2007年第5期877-880,共4页High Power Laser and Particle Beams

基　　金：国防科技基础研究基金资助课题

摘　　要：设计了一个两电极气体火花开关,开关的主体部分仅包括阴极、阳极两个主电极,以及金属外壳和绝缘支撑外壳,两电极结构取消了触发极,消除了由于触发极烧蚀影响开关寿命的问题。开关设计工作电压23 kV,单脉冲能量1.2 MJ,峰值电流300 kA,单次脉冲电荷转移量110 C。初步试验阶段开关工作电压达到15 kV,开关的通流180 kA,电荷转移量为47.85 C。开关触发性能可靠,电极烧蚀均匀。A two-electrode gas spark switch is designed. It has been built for high current, large charge transfers, slight electrode erosion and long lifetime. The switch operates without a trigger electrode, reducing losses by eliminating two arc/electrode contacts. The uniform erosion of graphite minimizes pitting and roughening of the electrodes. The switch is expected to discharge a 23 kV, 1.2 MJ bank with the peak current of 300 kA and charge transfer of 110 C per pulse on a single shot. In the elementary experimental study, the switch operates at a voltage of 15 kV with reliable performance for triggering and uniform electorde erosion.

关 键 词：大功率固体激光器 高库仑量 大电流 气体火花开关 两电极 

分 类 号：TN78[电子电信—电路与系统]