Rotating electron beam in crossed fields - Space charge, nonlinear effects

It is shown that it is possible to achieve effective asynchronous interaction of an electron beam in crossed fields with the electromagnetic fields of the resonance system when the space-charge fields are taken into account. Attention is given to the double transit of electrons through the interaction space, and it is shown that two steady-state oscillation regimes exist for an oscillator with a closed flux in crossed fields. In addition, it is determined that discontinuities of the amplitude-frequency response curve are associated with the hysteretic character of the transition of electrons from one regime to the other. The results are pertinent to processes in a voltage-tunable magnetron.