3D modeling of ion ribbon beam focusing and acceleration in undulator linac

One of the possible versions of undulator linear accelerator (UNDULAC-E) using a ribbon beam is discussed. The computer 3D simulation of the beam dynamics is fulfilled. The possibility of simultaneous acceleration of both positive and negative ions in undulator linac is shown. The influence of the fundamental and higher space harmonics of the RF field on ion ribbon beam dynamics in UNDULAC-E is analyzed. The optimal parameters of the accelerator are calculated in order to reach the higher transmission. Simulation results are presented.