The Homemade Compact Accelerator Mass Spectrometry and It’s Applications

The Accelerator Mass Spectrometry System of Guangxi Normal University(GXNU-AMS) was successfully installed and operated in 2017. It is the first homemade single-stage AMS system facility and one of the lowest-energy AMS systems in China. The system adopts 150 kV terminal voltage, helium stripping, and +1 charge state in measurements. During several years of operation, its performance has been improved continuously. The measured abundance sensitivity of ¹⁴C and ³H has reached (3.14±0.05)×10⁻¹⁵ and (1.23±0.17)×10⁻¹⁶, respectively, and the application research has been carried out in multidisciplinary field. The performance characteristics, operation, and application of AMS are briefly introduced to provide experimental data for the miniaturization and industrialization of AMS in China and to provide technical tools for the application research of low-energy AMS in nuclear physics, geological science, environmental science, and biomedicine.