Simulation of an induction voltage adder in two polarities

An Induction Voltage Adder (IVA) is described that comprises six induction cells like those of RITS [1] and six pulse-forming-lines (pfls) like those of Hydrus [2]. The pfls are negatively-charged through a coaxial oil line fed from one end by a 15-stage Marx with 2.6 μF 100 kV capacitors. The IVA feeds a negative pulse to an electron diode through a 5m long output vacuum coax. Simulations for an operating level at which the IVA components have proved reliable show that on a load that falls in impedance from 50 to 25 ohms in about 50 ns, the voltage of >7 MV is approximately flat for about 60 ns because of the ramped pulse from the pfl. Peak current is about 250 kA.