High voltage pulse generator

Claim 1

A pulse generator having an input terminal for connection to a high voltage souRce and an output terminal for connection to a load comprising, a first transistor operable in an avalanche mode and having base, emitter and collector electrodes, means connecting said collector to said input terminal and said emitter to said output terminal, a capacitor connected between said collector and a point of reference potential in a manner to be charged from said source, a PNP transistor and an NPN transistor connected in a regenerative circuit between said input terminal and said output terminal, means coupled to said base electrode for triggering said first transistor into said avalanche mode to discharge said capacitor to said output terminal providing at said output terminal a narrow, high current, high peak power pulse, and means coupled to said PNP and NPN transistors for causing said PNP and NPN transistors to regeneratively produce at said output terminal a second pulse having a rise time occuring during the time of said first pulse of less peak power than said first pulse, and of a longer duration than that of said first pulse.