3-D Simulation of Cold Cathode Magnetrons Operating on a Space Harmonic in a Drift-Orbital Resonance Mode

The 3-D model of the secondary-electron multiplication dynamics in cold cathode magnetrons having a SEC (second emission cathode), which is bombarded by the primary electrons from the side thermionic emitter. The carried out calculations of start magnetron processes with various values of a injection current shown, that generation in magnetron comes at any injection current, however start time of the device essentially depends on injection current value. At small value of a current c the lateral cathode time of start appears is comparable to duration of a pulse that can result in unstable work of the device