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High voltage switch triggered by a laser-photocathode subsystem

United States Patent

January 8, 2013
View the Complete Patent at the US Patent & Trademark Office
A spark gap switch for controlling the output of a high voltage pulse from a high voltage source, for example, a capacitor bank or a pulse forming network, to an external load such as a high gradient electron gun, laser, pulsed power accelerator or wide band radar. The combination of a UV laser and a high vacuum quartz cell, in which a photocathode and an anode are installed, is utilized as triggering devices to switch the spark gap from a non-conducting state to a conducting state with low delay and low jitter.
Chen; Ping (Rancho Palos Verdes, CA), Lundquist; Martin L. (Rancho Palos Verdes, CA), Yu; David U. L. (Rancho Palos Verdes, CA)
DULY Research Inc. (Rancho Palos Verdes, CA)
12/ 660,890
March 4, 2010
GOVERNMENT RIGHTS This invention was made with government support under Grant No. DE-FG03-02ER83402 awarded by the U.S. Energy Department. The government may have certain rights in the invention.