Experimental investigation in pulse edge of gas spark switch

Gas switch is one of the key components widely used in pulsed power devices. Research and design of high power, high performance gas switch have important significance. Speed up the pulse front is an important part of switch technology research. This paper analyzes the distribution law of gas switch breakdown channel. The gas switch fully sophisticated, switch breakdown and the breakdown channel will be relatively stable. When the breakdown field is low, reducing the switch gap will be beneficial for pulse sharpening. When the breakdown field is large (greater than 180 kV/cm), switch gap (inductor) has little influence on front edge of output pulse. Breakdown of gas switch is the key factor to influence the forefront of the output pulse. Research results show that increasing the breakdown field strength is an effective way to sharpening the pulse edge up.