Plasma filled radial acceletron

Summary form only given. The advantages of the radial acceletron over conventional sources has been reported by Arman (1996). Briefly, the radial structure of this design allows for much smaller impedances and thus higher powers, the growth rate is large because of the transit-time nature of the interaction, and the source is compact because there is no need for external magnetic fields. Adding plasma to the interaction region of certain high power microwave sources has had beneficial effect on the growth rate and efficiency. We believe the radial acceletron will also be enhanced by the presence of positively charged plasma in the main cavity. Here I report on the results of adding plasma to the radial acceletron. The research is carried out numerically by simulation, using the PIC codes MAGIC and SOS. The plasma enhanced radial acceletron can possibly generate gigawatts of coherent RF power in a wide range of frequencies.