Physical design of a pulsed kicker for low energy proton beams

The shortest pulse width of ECR proton source is about sub-millisecond. A chopper or a kicker is important to produce 100 ns pulsed proton beams for high gradient accelerating structure. Physical design of an electrostatic kicker was described in this paper. The configuration of the kicker was matched with an ECR proton source which was being investigated. Electrostatic field was calculated with ANSYS. The capacitance of the kicker was extracted with CMATRIX command macro. Relations between beams rising time and kicker pulses rising time were discussed. The desire for pulsed power supply was also analyzed.