电子直线加速器磁控管频率稳定的自适应线性神经元方法

 电子直线加速器电子束能量的稳定与否取决于功率源工作频率的稳定性,磁控管在短时间内的散谱和轻微跳谱造成稳频系统的控制精度下降,最后电子束的扫描均匀度下降。引入自适应线性神经元方法(ADALINE)和噪声对消技术以消除对工作频率长期稳定性的影响,从而保证了电子束的扫描均匀度。

Adaline Method of the Operating Frequency Stabilization of the Magnetron for the Linac

Whether the energy of the electron beam from the irradiation LINAC is stable or not depends on the stability of the operating frequency of the power source.The dispersion and the slight jump of the spectrum of the magnetron in a short time causes to decrease the controlling accuracy of the frequency stabilization system.Finally,the scanning uniformity of the electron beam descends.The adaptive linear element (ADALINE) and the noise canceling technique are introduced to eliminate the influence of the dispersion and the slight jump of the spectrum on the frequency stability in long time.Thus the scanning uniformity of the electron beam can be assured.