Design Proposal for a Compact, Solid-State, Low-Power Klystron-Pulser for CTF3

A simple, compact, solid-state pulse generator using integrated gate commutated thyristors (IGCT's) is proposed for a low-power, pulsed L-band klystron system in the CLIC test facility CTF3 at CERN. This design uses an array of IGCT devices in series that discharge an energy storage capacitor network into a step-up pulse transformer. A pulse width of about 2.5 microseconds flat top is created at the transformer secondary winding for the klystron load, with a peak voltage of 70 kV and pulse current of ~50 A. The repetition rate of the pulser is designed for nominal 10 Hz operation.