Repetitive, triggered, long life-time spark-gap switch for pulsed power applications

摘要

Non-thermal plasmas for gas cleaning purposes can be generated in various ways. In this paper, a critical component for pulsed plasma generation is described: a spark-gap switch. The design of a coaxial, high repetition rate, large average power, and long-life time switch is discussed. The switch is used with a fail-free LCR trigger circuit. Critical issues for switch design are presented with experimental results. It is observed that the switch has a good stability, and its lifetime is estimated to be in the order of 4·10~(10) shots.