The features of this invention allow construction and operation of a variety of high voltage, high repetition rated pulse generators of the Marx type that are switched with photon initiated semiconductor switches. The Photon Initiated Switches can be constructed with bulk materials or in layered devices such as thyristors. Variations on the invention permit the formation of nearly rectangular, flat-topped, high voltage pulses. Although the invention has been described in detail with particular reference to these preferred embodiments, other embodiments can achieve the same results without departing from the scope of the invention. Variations and modifications of the present invention will be obvious to those skilled in the art and it is intended to cover in the appended claims all such modifications and equivalents. The entire disclosures of all references, applications, patents, and publications cited above are hereby incorporated by reference.
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