Wakefield suppression using beatwave structures

A proposed method of suppressing transverse wakefields in an accelerating structure makes use of the fact that superposition of long-range wakes excited by an electron bunch traversing a series of accelerating cells with different transverse frequencies can produce interference cancellation, thereby significantly reducing the magnitudes of the harmful wake potentials. Analytic calculations as well as time-domain and modal sum simulations are performed to study the beatwave effects produced by detuned, disk-loaded cavities as a function of their transverse frequency spread and the population density.<>