强激光与粒子束2013，Vol.25Issue(4)：1059-1062,4.DOI:10.3788/HPLPB20132504.1059
轨道式多间隙气体开关设计与性能测试
Design of multi-gap rail gas switch and its performance test
摘要
Abstract
A four-gap, rail gas switch for fast linear transformer drivers (LTDs) has been developed to be of low jitter and low inductance, by using four horizontal gaps constructed by rail electrodes. The electric field of the switch and the hold-off voltage of the single gap of 8 mm were calculated by using electric field numerical simulation and Meek's Criterion analysis, respectively. A probability analysis method, for predicting self-breakdown voltages of a switch consisting of several gaps in series, is put forward. The calculated self-breakdown voltages were in agreement with the experimental results. The switch inductance of no more than 109 nH provides the LTD brick a measured inductance of 290 nH. The relative standard deviation of self-breakdown voltage is about 1.5%. Under a 60 kV forward voltage pulse, the switch with 48%-74% voltage ratio has a close jitter of 0. 9-2. 6 ns. Compared with a previously developed switch with toroidal electrodes, the rail gas switch has a lower trigger voltage and self-breakdown stability while operating at the same voltage ratio.关键词
直线脉冲变压器/气体开关/自击穿/触发/闭合抖动/电感Key words
linear transformer driver/ gas switches/ self-breakdown/ trigger/ close jitter/ inductance分类
信息技术与安全科学引用本文复制引用
丛培天,吴撼宇,孙铁平,李岩,雷天时,曾正中,邱爱慈..轨道式多间隙气体开关设计与性能测试[J].强激光与粒子束,2013,25(4):1059-1062,4.基金项目
国家自然科学基金项目(50637010,11135007) （50637010,11135007）
