Excitation of wake fields by lengthy electron bunches in a dielectric resonator

Abstract

Theoretical research and numerical simulation of the wake-field excitation in a dielectric resonator by a regular sequence of relativistic electron bunches is carried out. A nonlinear system of equations for the multimode excitation of the wake field in the dielectric resonator is derived. The numerical simulation is carried out, and the dependences of the maximum amplitude of the longitudinal electric field on the bunch length and charge are investigated and physically interpreted.