海关大型货物在线检测用加速器采用4MW速调管作为微波功率源,保证加速管入口功率可达35MW、工作频率为2856MHz;以行波方式加速电子,聚束器俘获效率大于80%;加速管全长约220cm;电子能量设置9、6MeV两档,对应的额定脉冲束流强度理论设计值分别为170和300mA。本文给出了纵向粒子动力学、盘荷波导的尺寸及加速管的工作特性等方面的计算结果 The 4MW klystron is used as the microwave power source to ensure that the entrance speed of the accelerating tube can reach 35MW and the operating frequency is 2856MHz. The accelerated electron capture by the traveling wave method can achieve a trap efficiency of more than 80% Length of about 220cm; electronic energy settings 9,6 MeV two files, corresponding to the rated pulsed beam current theoretical design values ​​were 170 and 300mA. In this paper, the results of longitudinal particle dynamics, the size of the disk-loading waveguide and the working characteristics of the accelerating tube are given