Development of a stripline kicker for the Hefei Advanced Light Facility

A fast kicker is a significant component for on-axis injection of the new generation synchrotron light source with ultralow emittance. The Hefei Advanced Light Facility (HALF) plans to be a fourth-generation diffraction limited storage ring in the future. The preliminary research work is proceeding smoothly. On-axis longitudinal injection scheme is under consideration for the beam accumulation and has not yet been decided. This paper mainly introduces the development of a stripline kicker optimized for this injection scheme. The kicker, combined with a high-voltage pulse generator, can provide a deflection field for the injected bunch and making it completely transparent to circulating bunches without disturbing them. The structure was simulated by CST. The design results were judged by S-parameters and TDR. The S-parameters of the kicker were measured by a network analyzer, and the reliability of the simulation results was verified by comparing the measured and simulated results. The prototype was tested with a high-voltage pulse generator, and the change of the pulse in the prototype was obtained.