A beam buncher, developed to improve the beam efficiency in the K130 cyclotron at University of Jyväskylä, is described. The basic acceleration frequency and the second harmonic component were used to simulate a saw-tooth wave, needed for axial injection of the beam. With this method up to eight times increase in the beam intensity was achieved.
Saario, J., Gustafsson, J., Kotilainen, P., Kaski, K., Lassila, A., & Liukkonen, E. (1996). Beam buncher for the K130-cyclotron. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 370(2–3), 330–334. https://doi.org/10.1016/0168-9002(95)00847-0