RF design and beam tracking in a compact racetrack CW microtron boosted with a tabletop Rhodotron

Abstract A conceptual design of a compact accelerator for active X-ray interrogation is presented. The light-weight design allows sub-millisecond beam energy and current modulation with beam power up to 10 kW and dynamic control across more than four orders of magnitude range. The main accelerator uses a C-band racetrack microtron equipped with two stripline kickers for fast beam outcoupling at three different energies. Injector employs an L-band Rhodotron operating at 8th sub-harmonic in a correspondingly optimized and designed cavity. RF design simulations coupled with thermal simulations as well beam dynamics simulations are presented.