工业辐照加速器扫描磁铁电源的研制

 分析了工业辐照加速器扫描磁铁的三角波励磁电流的选取。介绍了一种输出电流峰 峰值20 A、扫描频率为20～50 Hz的连续三角波的工业辐照加速器扫描磁铁电源。阐述了三角波调制器的原理、三角波线性度、基于单片机的控制系统以及其在工业辐照环境下采取的抗干扰措施。理论和应用均表明该设计具有很好的辐照均匀度。

Development of scanning magnet power-supply used in industrial radiation accelerator

Continuous triangle waveform as the magnetic field current of scanning magnet can give good uniformity degree of radiation in industrial radiation accelerator. This paper introduced the design of a scanning magnet power-supply used in a 10 MeV industrial radiation accelerator. The scanning magnet power supply can produce continuous triangle waveform current. The frequency can be adjusted by step length of 1 Hz ranged from 20 Hz to 50 Hz, and the peak-to-peak current is 20 A. The principle of triangle waveform modulator, linear degree of triangle waveform, control system based on single chip and it's anti jamming measure in industrial circumstance are presented. Both theoretical analysis and result of application show that linear degree of scanning and uniformity degree radiation of th