Operation Condition of GW Class Magnetron with Diffraction Output in Particle-In-Cell Simulation

Abstract

Particle-In-Cell (PIC) simulations were performed to study the GW operation condition of an A6 Magnetron with Diffraction Output (MDO) with transparent cathodes. The input waveform is a -500 KV pulse of 100 ns pulse width. The results show the GW class output power appears after 30 ns at 0.36 T external magnetic field, which is within theoretical prediction of conventional Buneman-Hartree (B-H) condition, but is very sensitive to magnetic field strength. The actual energy efficiency maybe lower than expected.