磁聚焦系统是电子直线加速器的重要组成部分,10 MeV电子直线加速器的磁场聚焦系统主要依据加速管轴线上的磁场分布进行工程设计。 1 设计要求 依据束流动力学理论计算的结果(图1)进行设计。 图1 理论磁场曲线图 2 聚焦元件布局 根据理论磁场曲线,在加速管上布置6个聚焦线圈 The magnetic focusing system is an important part of the electron linear accelerator. The magnetic field focusing system of the 10 MeV electron linear accelerator is mainly designed according to the magnetic field distribution along the axis of the accelerating tube. 1 The design requirements are based on the results of beam dynamics calculations (Figure 1). Fig.1 The theoretical magnetic fieldFig.2 The focusing element layout According to the theoretical magnetic field curve, six focusing coils are arranged on the accelerating tube