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Featured researches published by Liang Dou.
Chinese Physics C | 2014
Liang Dou; Shan Jiang; Xiao-Bo Wang; Ke Jun Dong; Shao Yong Wu; Xu Ran Yang; Xiaoming Wang; Xiao Xi Lan; Qing Liang Xia; Ming He
The accelerator mass spectrometry (AMS) is an effective method for the determination of the half-life of long-lived radionuclides. In this paper, we report a method for measurement of the half-life of 79Se. The number of 79Se atoms was determined from measured 79Se/Se absolute ratios with the AMS system at the China Institute of Atomic Energy and the decay rate of 79Se was determined by counting the emitted β-rays with a liquid scintillation spectrometer. The major improvements of our measurements include using the high abundance of an 79Se sample which was cooled for many years to exclude the interference of short-lived nuclides, the extraction of SeO2− molecular ions, that results in a suppression of the 79Br background by as much as about five orders of magnitude. Also, an AMS measurement of the absolute ratio of 79Se/Se was developed to avoid systematic errors. The results show that 79Se/Se is (2.35±0.12)×10−7 in the reference sample and the radioactivity of 79Se is (1.24±0.05) Bq/g, so the half-life of 79Se is (2.78±0.18)×105 a.Author(s): Dou, L; Jiang, S; Wang, XB; Dong, KJ; Wu, SY; Yang, XR; Wang, XM; Lan, XX; Xia, QL; He, M | Abstract: ©2014 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd. The accelerator mass spectrometry (AMS) is an effective method for the determination of the half-life of long-lived radionuclides. In this paper, we report a method for measurement of the half-life of 79Se. The number of 79Se atoms was determined from measured 79Se/Se absolute ratios with the AMS system at the China Institute of Atomic Energy and the decay rate of 79Se was determined by counting the emitted β-rays with a liquid scintillation spectrometer. The major improvements of our measurements include using the high abundance of an 79Se sample which was cooled for many years to exclude the interference of short-lived nuclides, the extraction of SeO2- molecular ions, that results in a suppression of the 79Br background by as much as about five orders of magnitude. Also, an AMS measurement of the absolute ratio of 79Se/Se was developed to avoid systematic errors. The results show that 79Se/Se is (2.35±0.12)×10-7 in the reference sample and the radioactivity of 79Se is (1.24±0.05) Bq/g, so the half-life of 79Se is (2.78±0.18)×105 a.
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 2015
Hongtao Shen; Fangfang Pang; Shan Jiang; Ming He; Kejun Dong; Liang Dou; Yijun Pang; Xianlin Yang; Xiangdong Ruan; Manjun Liu; Chunbo Xia
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 2015
Kejun Dong; Ming He; Chen Wang; Xinhong Zhao; Lili Li; Yonggang Zhao; Xianggao Wang; Hongtao Shen; Xiaoming Wang; Fangfang Pang; Yongning Xu; Qingzhang Zhao; Liang Dou; Xuran Yang; Shaoyong Wu; Deyu Lin; Kangning Li; Qubo You; Yiwen Bao; Yueming Hu; Qingliang Xia; Xinyi Yin; Shan Jiang
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 2015
Xinyi Yin; Ming He; Kejun Dong; Liang Dou; Xiaoxi Lan; Fangfang Pang; Shaoyong Wu; Shan Jiang
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 2015
Kejun Dong; Duo Zhou; Yongning Xu; Ming He; Guangshan Liu; Hao Hu; Liang Dou; Jiancheng Liu; Shaoyong Wu; Xianggao Wang; Hongtao Shen; Kangning Li; Qubo You; Yiwen Bao; Yueming Hu; Chunsheng Jin; Xinyi Yin; Shan Jiang
Radiocarbon | 2013
Ming He; Xiangdong Ruan; Wei Wang; Liang Dou; Lingbo Xie; Kejun Dong; Zhen-Yu Li; Guowen Zheng; Hao Hu; Shan Jiang; Jianchen Liu; Shaoyong Wu
Nuclear Science and Techniques | 2018
Hui Zhang; Liang Dou; Xiaoming Wang; Shengquan Mi; Qingzhang Zhao; Shan Jiang; Ming He
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 2013
Zhen-Yu Li; Shan Jiang; Ming He; Kejun Dong; Hao Hu; Guowen Zheng; Heng Li; Xiao Wang; Lin-B Xie; De-Y Lin; Liang Dou; Shaoyong Wu; Qubo You; Yiwen Bao; 谢林波
Archive | 2013
Liang Dou; Ming He; Lin-B Xie; Kejun Dong; Shaoyong Wu; De-Y Lin; Xiao Wang; Shan Jiang; 谢林波
Archive | 2013
Xiao Wang; Wei Wang; Ming He; Yongjing Guan; Kejun Dong; Shaoyong Wu; De-Y Lin; Lin-B Xie; Liang Dou; Shan Jiang; 谢林波