Revisiting the relativistic A6 magnetron

Abstract

We have recently been studying the relativistic A6 magnetron with a single radial output by 3D-PIC simulations. It was found that a delicate electro-dynamic imbalance, resulting in an impedance mismatching between the magnetron and the generator supplying its power, is responsible for microwave pulse-shortening prior to beginning of cathode plasma expansion.1 Also, it was shown that pulse shortening can be eliminated by affecting the relevant impedances through changes in the emitted cathode electron current.