RADIO-FREQUENCY ELECTRON ACCELERATOR

摘要

The present invention provides a radio-frequency electron accelerator comprising a metal casing; an accelerating resonator enclosed in said metal casing and forming a first resonance circuit; an electron gun provided on a central inner projection of one end face surface of the accelerating resonator and directing an electron beam into an accelerating gap along said resonator axis; a radio-frequency power source for producing an accelerating voltage designed in the form of a self-excited oscillator based on a single oscillator tube provided directly on said resonator; and a coupling loop connected to an anode tank of said oscillator tube and provided in the cavity resonator for transmitting energy to the electron beam being accelerated, said coupling loop comprising a second resonance circuit formed by a separating capacitor, inductances of the anode terminal and anode water tank of the oscillator tube, and the output capacitance of the oscillator tube, the resonant frequency of said second circuit being equal or close, to that of said first circuit and said first and second circuits together forming a two-circuit oscillation system in the anode circuit of said oscillator.