Chaotization of the Virtual Cathode Oscillations in the ExternalMagnetic Field Created by a Ring Magnet

摘要

The physical mechanisms leading to the chaotization of the virtual cathode oscillations in a low-voltage vircator system at an increase in the amplitude of the external inhomogeneous magnetic field createdby a ring magnet have been studied within a two-dimensional numerical model. It has been established thatthe chaotization of the virtual cathode oscillations in a strongly inhomogeneous external magnetic field is dueto the formation of the secondary electronic structure (electron beam) in the electron flow resulting from themagnetic trap in the outer layers of the electron beam.