Explosive magnetic generator of a high-power high-voltage pulse group

A device is being considered consisting of a helical explosive magnetic generator, a cascade of explosive and electroexplosive opening switches. This device serves to obtain a single pulse or a group of voltage pulses with the amplitude of up to 1 MV and a duration of several hundred nanoseconds in loads having an impedance of 1-15 Ohm. The interval between the pulses is equal to several microseconds. The electroexplosive cascade contains the given (in accordance with a required number of pulses) number of steps of conductor having different cross-sections and lengths. Amplitude, shape of pulses and the interval between them may be within certain limits changed by the way of picking out the conversion cascades´ design parameters. The authors have modelled the operation of the exit cascade of the considered device powered by a capacitor facility. Copper wire, having several parts of different cross-sections, was used as the electroexplosive opening switch. Oscillograms with two and three consecutive pulses with an amplitude of about 550 kV and a duration of less than 500 ns were obtained. The interval between the pulses was about 2 /spl mu/s.