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本文描述了用于浓密等离子体焦点装置上的低气压开关。开关内充干燥空气1×10~(-2)乇。耐压试验到40千伏,在20千伏下运行。单个开关峰值电流为350千安。触发延迟时间(包括各项测量误差)为150±40毫微秒。两开关在10毫微秒内同步。还发现,不用触发线路而用加大回充气体使其自发击穿的方法使开关导通,两开关也能在160毫微秒内同步。开关性能稳定,已放电5000次以上,还在继续运行。
This article describes a low-pressure switch for use in dense plasma focus devices. Switch filled with dry air 1 × 10 ~ (-2) Torr. Pressure test to 40 kV, 20 kV operation. A single switch peak current of 350 kA. Trigger delay time (including the measurement error) is 150 ± 40 ns. The two switches are synchronized within 10 nanoseconds. It was also found that the switch was on by switching the switch on with an increased breakdown gas without triggering the line and the two switches were synchronized within 160 nanoseconds. Switching performance is stable, has been discharged more than 5000 times, still continue to run.