Performance for Low Energy AMS measurement of 10Be at Tianjin University

Dr Kejun Dong, Prof. Yunchao Lang, Prof. Sheng Xu

1Institute of Surface Earth System Science, School of Earth System Science, Tianjin University, Tianjin, China

The AMS system with a nominal voltage value of 500 kV at Tianjin University was installed in 2017. The facility is now in routine operations after the initial testing and commissioning phase. As the most challenging nuclide, 10Be has completed the measurement and analysis of more than 500 samples from different scientific fields. However, the measurement method of ¹⁰Be has to be optimized and developed due to the accelerator terminal voltage must be operated at the maximum limit value of 600 kV for each experiment. As a result, a series of measures have been taken in order to further optimize the ¹⁰Be measurement method and reduce the risk to the equipment during the experiment. In this contribution, the experimental setup and corresponding performance improvements will be briefly introduced.


Biography:

Dr. Dong comes from the AMS laboratory of Tianjin University in China. About 2000 14C, 500 10Be and 300 26Al samples have been determined since the AMS system was installed in the School of Earth System Science, Tianjin University in October 2017. The cosmogenic nuclides of 14C, 10Be and 26Al AMS techniques have been applied in the fields of geology, environment and marine science at Tianjin University. In this presentation, the topic of performance for Low Energy AMS measurement of 10Be at Tianjin University will be introduced.

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Date

Nov 08 - 19 2021