A prototype proton undulator linear accelerator

One method to implement undulator acceleration is to move particles in a magnetic undulator, in which the particle spatial oscillations in the transverse direction are synchronized with the frequency of the transverse radio frequency field, which allows transferring the field energy to the accelerated particle. Since resonators that allow obtaining a uniform transverse field are structurally simpler than those with a periodically varying longitudinal radio frequency field, undulator accelerators are an attractive alternative to traditional accelerators. Although the physical fundamentals of such accelerators were described earlier in the literature, the problem of creating their prototypes still remains unsolved. In this paper, a practical description of a prototype proton undulator linear accelerator based on this principle, which is under development at RadiaBeam Technologies LLC (United States) is presented.