A compact repetitive Marx generator with fast risetime

The Marx generator especially makes use of inductive charging technology to ensure high-repetitive operation. Low-inductance capacitors of 3.3 nF are chosen as energy storage capacitors. And helix inductors are utilized as charging and grounding elements. By means of rapid discharge of each short gas spark gap, wave erection can be realized on the output load. The Marx is fitted into a tube with a diameter of 145 mm and a total length of 477 mm. The generator is pressurized with an N2/SF6 mixture. This system stores 7.9 J and is capable of delivering a current about 3.0 kA at 150 kV to a 50 load. The full width half maximum of output voltage is about 30 ns, and the rise time of the current is less than 10 ns. The repetitive frequency is 60 Hz.