| 摘要 |
PROBLEM TO BE SOLVED: To obtain a power source device of electron beam irradiator which responds directly to the fluctuation of input voltage and can be cut in such a short time that enough to protect the irradiator when a short-circuit current is generated in a DC high-voltage section. SOLUTION: In the electron beam irradiator which includes an electron accelerator 11 that irradiates an object with electron beam by accelerating electron emitted from an electron beam source through the application of a high voltage, and the power source device 10 that supplies the electron accelerator 11 with DC high voltage, the power source device 10 is equipped with an inverter 37 that converts the output from a commercial AC current source to variable-voltage AC output, DC power source components 27 and 28 that supply the electron accelerator 11 with DC high-voltage by boosting the voltage of the output from the inverter 37 and rectifying it and a feedback control circuit that detects DC high voltage and current to control the output from the inverter 37.
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