High-power klystron modulator using a pulse-forming line and magnetic switch

Abstract

A new type of klystron modulator has been developed for the Japan Linear Collider. It consists of a pulse-forming line (PFL), a pulse transformer and a magnetic switch. In order to realize a compact modulator, a triplate strip transmission line using deionized water as a dielectric was adapted for the PFL. A preliminary test has shown that an output pulse with a peak voltage of 600 kV, a pulse length (flat-top) of 460 ns and a rise time of 153 ns can be generated for a dummy load with an impedance of 500 /spl Omega/.<>