Output-Power Enhancement of Vircator Based on Second Virtual Cathode Formed by Wall Charge on a Dielectric Reflector

A second virtual cathode (VC2) is experimentally developed for the first time in this vircator study, where an axial vircator is simulated by installing a dielectric reflector (DR), whose position is altered from 6 to 18 cm in steps of 2 cm away from the anode. In simulation, the phase space of all electrons indicates that the wall charge on the DR contributed to develop VC2 ...