EPICS based beam energy measurement system for proton LINAC

Beam energy is a key property to determine the accelerator performance. A real-time and non-destructive method should be used for the energy measurement. In this paper, an energy measurement system based on Experimental physics and industrial control systems (EIPCS) is designed and developed for a proton LINAC. The original signals are from beam position monitor, which give us the beam phase information through its electronics. An algorithm from beam energy to phase is deduced. Based on EPICS, the client completes the data acquisition, the IOC achieves beam energy measurement algorithms, and last a whole energy measurement OPI performed by CSS.