Diocotron and electromagnetic modes in split-cathode fed relativistic smooth bore and six-vane magnetrons

In this article, the diocotron modes developing in a coaxial diode and resonant magnetron forming six-vane A6 relativistic both fed by split cathode are studied Particle-in-Cell simulations. The is novel type of which sustains column longitudinally oscillating electrons (smooth bore) or over non-emitting axial conductor. connection between longitudinal oscillatory dynamics mode development, as well whether affect modes, investigated.