Bi4 (SiO4)3 (BSO) is a new type of scintillation crystal with good performance, it has good mechanical and chemical stability, photoelectric and thermal release characteristics. BSO crystal has many properties similar to BGO, especially in some key indicators such as afterglow and attenuation constant, and has better performance. In recent years, it has attracted the attention of scientific researchers. So it has a wide range of applications in high energy physics, nuclear medicine, space science, Gamma detection, etc.