the beijing fel (bfel) is a infrared fel facility based on the rf linac. in order to im-prove its beam diagnostic system transition radiation has been used instead of the original phosphor target.
在北京自由电子激光器装置的性能改进中,采用了基于渡越辐射的电子束诊断方法。
as a result, it is successful in controlling the amplitude regulation accuracy of the microwave sources high voltage to 0.15%, which satisfies the requirement of far infrared fel experiment.