Accelerator is a device that accelerates particles to obtain high energy. In the accelerator, electrons, protons, deuterium, a particles and other heavy ions of various energies can be generated. The interaction between these particles and matter can also produce various charged and uncharged secondary particles, such as 7 particles, neutrons, various mesons, hyperons, antiparticles, etc. The particles and rays produced by the accelerator have been used in the research of nuclear physics and medical, industrial, agricultural and food sectors.