A novel pulsed power generator using inductive voltage adder technology has
been put into operation in Kumamoto University. This machine, named "ASO-X
", is an inductive voltage adder-inductive energy storage pulsed power syst
em. The maximum output voltage and current of ASO-X are 180 kV and 400 kA,
respectively, into a short circuit load with a current quarter period of 1.
3 mu s. In order to increase the voltage and power and to decrease the rise
time of the load current, a plasma opening switch is used at the output of
ASO-X. Eight plasma guns serve as the plasma source for the opening switch
in a circuit with a single triggered spark-gap switch. This system provide
s a very fast current rise rate (3.6 x 10(12) A/s) and over 1 mu s of condu
ction time of the plasma opening switch.