Design and development of pulse power supply for transmission line type kicker magnet

A 25 Hz kicker power supply has been designed and developed to test a 6.25 Ohm transmission line type kicker magnet for technological development. This power supply delivers a 1kA trapezoidal current pulse with a rise, fall and flat top time of 100 ns, 100 ns and 500 ns respectively. This current pulse is generated by discharging a pulse forming network into matched transmission line kicker magnet. A high voltage thyratron CX1666 is used as a switch. The design of PFN was a critical issue from the fabrication point of view due to smaller impedance and faster rise time requirement. We discuss the specific issues related to the design of pulse forming network and thyratron assembly for achieving faster rise time of current pulse. The designed and experimental results of the developed kicker power supplies will be also presented. (author)