A scaled experiment to study dynamics during longitudinal compression of intense charged particle beams

In order to investigate the beam dynamics during longitudinal compression in high power ion accelerator, we constructed a compact bunching simulator device based on electron beams with an induction voltage adder configuration. The compression ratio and the evolution of the beam current were compared with numerical simulations using a particle code. From the results, we confirmed that the space-charge force affects the beam dynamics and the compression ratio around the focal point.