External trigger technique of high speed signal of beam parameters measurement system under strong electromagnetic interruption

Strong electromagnetic interference in the high power linear induction accelerator (LIA) is disadvantageous to electron-beam-parameters measurement and diagnosis system. In this paper, electromagnetic interference effect on time-resolved electron-beam-parameter measurement system is analyzed, and the method for controlling the electromagnetic interference is discussed. With fiber embedded technology, narrow impulse signals are dependably transmitted, signal delay jitter is less than 2 ns. The experiment showed that the measuring system is characterized with the features of high reliability and achieves the application requirements.