Liquid Dielectric Pulse Line Technology
Liquid-dielectric pulse line technology is an important and rapidly developing aspect of short-pulse, very high power generators, such as those used to accelerate relativistic electron beams. A description is presented of recently completed systems, including the largest present examples of both oil-dielectric and water-dielectric design. Oil-dielectric lines are represented by a recently built system that delivers approximately 9 MV, 250-kA and by AURORA a 14-MV, 2 MJ-system. Water-dielectric lines are represented by reference to OWL II, a 100-kJ, 1- MV system. A brief description is given of general design principles. Mention is also made of the spark gap techniques by which the pulse lines of the systems are switched into their loads. The switches described include triggered multiple channels in the liquid dielectric itself (in both oil and water) and self-closing liquid switches. Triggered and untriggered gas switches can also be used, and these are described. Prepulse switches and the circuits used to control prepulse are also described. Brief descriptions are given of the Marxes used in each of the systems.
KeywordsOutput Pulse Relativistic Electron Beam Marx Generator Impedance Transformer High Power Generator
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