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High power fast kicker system for SNS beam extraction

By: Lockey, R.; Lambiase, R.; Mi, J.; Tsoupas, N.; Sandberg, J.; Pai, C.; Zhang, W.; Warburton, D.; Nehring, T.; Tuozzolo, J.;

2002 / IEEE / 0-7803-7540-8


This item was taken from the IEEE Conference ' High power fast kicker system for SNS beam extraction ' A Blumlein topology based high peak power, high repetition rate, and low beam impedance fast extraction kicker system for ORNL Spallation Neutron Source (SNS) is being developed at Brookhaven National Laboratory. The large magnet window size, large deflecting angle, low beam impedance termination and fast deflecting field rise time demand a very strong pulsed power source to drive the SNS extraction fast kicker magnet. This system consists of fourteen high voltage modulators and fourteen lumped kicker magnet sections. All modulators will be located in a service building outside the beam tunnel, which is a revised design requirement adopted in the mid 2000. The high current pulses generated by the high power modulators will be delivered through high voltage pulsed transmission cables to each kicker magnet sections. The designed output capacity of this system is in multiple GVA. Its first article modulator has been constructed and is being tested. In this paper, we present the system overview, project status and the advantages of this new conceptual design.