改进电子直线加速器束流品质的新方法

A new method for improving beam quality of LINAC

简单介绍了自适应前馈控制的工作原理、具体实现及其在速调管、微波枪和加速管上的应用，并对实现热阴极微波枪这种时变、非线性、大迟滞系统的控制作了重点介绍。

The principle of the self-adaptive feed-forward (SAFF) control to improve the beam quality of linac is introduced. The analytical procedure for calculating the control signals, the structure of a practical control system, and applications of SAFF in klystron, RF gun, and linac are presented, especially the application in the thermionic gun whose response is non-linear, time-variant and of large time-delay. The described control system is operational and some primary experimental results have been obtained, including the control of amplitude and phase fluctuations of the klystron output, the microwave field in the gun cavity and linac.