Manufacture of a continuous triangle-waveform scanning magnet power supply used in industrial irradiation acceleration

There are many choices about output waveform as the magnetic field current of industrial irradiation accelerator scanning magnet power-supply. Continuous triangle waveform as the magnetic field current of scanning magnet can give good uniformity degree of irradiation in industrial radiation accelerator. This paper introduced the design of a scanning magnet power-supply used in a 10MeV industrial irradiation accelerator. The scanning magnet power-supply can produce continuous triangle waveform current. The frequency can be adjusted from 20 Hz to 50 Hz by step length of 1 Hz, and the peak-to-peak current is 20 A. The principles of triangle waveform modulator, linear degree of triangle waveform, control system based on single-chip and its anti-jamming measures in industrial circumstance are presented. In conclusion, from both theoretical analysis and results of application, it´s shown that the linear degree of scanning and the uniformity degree of radiation are better by choosing a continuous triangle waveform as the output waveform of the current of industrial irradiation accelerator scanning magnet power-supply.