束流能量是辐照加速器最重要的特性之一,是辐照效果影响最大的几个因素之一,能量及其稳定性都有必要进行监测。目前,电子束的能量测量方法通常有磁偏转法、半价层法、射程法等。然而无论是磁偏转法、半价层法还是射程法,均需要获得测量数据后通过后续处理及计算才能得出电子束的能量,均属于离线测量方法,不能满足束 Beam energy is one of the most important characteristics of the radiation accelerator. It is one of the most important factors affecting the irradiation effect. The energy and its stability are all necessary to be monitored. Currently, the electron beam energy measurement methods are usually magnetic deflection method, half price method, range method. However, whether it is magnetic deflection method, half-price method or range method, it needs to get the measurement data and then through the subsequent processing and calculation to get the energy of the electron beam, all belong to the offline measurement method, can not satisfy the beam