Pulse power applications of silicon diodes in EML capacitive pulsers

Crowbar diodes are used for increasing the energy transfer from capacitive pulse forming networks. They also prevent voltage reversal on the energy storage capacitors. 52 mm diameter diodes with a 5 kV reverse blocking voltage, rated 40 kA, were successfully used for the 32 MJ SSG (single shot gun) railgun. An uprated diode with increased current capability and a 15 kV reverse blocking voltage has been developed. Transient thermal analysis has predicted the current ratings for different pulse lengths. Analysis verification is obtained from destructive testing. >