Progress in XCAMS at Tianjin University

BackgroundA compact ¹⁴C AMS system extended for ¹⁰Be and ²⁶Al (XCAMS) was installed at Tianjin University in October 2017. As an initial testing result, a detection limit of 4.4 × 10 ^-16for ¹⁴C/ ¹²C, 3.8 × 10 ^-15for ¹⁰Be/ ⁹Be and 6.9 × 10 ^-15for ²⁶Al/ ²⁷Al was achieved, respectively.
MethodThe system was gradually smoothed and optimized based on a series of standard, blank and real samples measurement.
ResultsThe detection limit was down to 4.0 × 10 ^-16for ¹⁴C/ ¹²C, 2.2 × 10 ^-15for ¹⁰Be/ ⁹Be and 5.6 × 10 ^-15for ²⁶Al/ ²⁷Al, respectively. More than one thousand samples of ¹⁴C, ¹⁰Be and ²⁶Al have been successfully measured and analyzed.
ConclusionThe cosmogenic multi-nuclide of ¹⁴C, ¹⁰Be and ²⁶Al AMS has been available for studies in archaeology, Earth science and environmental science, and some significant jobs still need to be carried out in the near future.