Double-sided relativistic magnetron

A new scheme of a symmetrically powered relativistic magnetron and several methods of localized electron flow forming in an interaction region are proposed to increase the efficiency of relativistic magnetrons (RM). As was reported for many experiments, the efficiency of RM is about 10-30% and considerably lower than that of ⩾70% for the classic magnetrons. A very important reason is the effect of nonsymmetric feeding of power from one side of a magnetron, which is typical for experiments. One-sided powering leads to the axial drift of electrons, to the transformation of transverse velocities of electrons to a longitudinal one and to the generation of a parasitic electron beam which does not take part in energy exchange between electrons and waves at all. A special driver was designed for double-sided powering of RM. The proposed system is compact, rigid and capable of reliable operation at high repetition rates, which is advantageous for many applications