Stepped-up development of accelerator mass spectrometry method for the detection of ⁶⁰Fe with the HI-13 tandem accelerator

Zhang, Yang1; Yan, Sheng-Quan1; He, Ming1; Zhao, Qing-Zhang1; Zhang, Wen-Hui1; Kan, Chao-Xin1; Zhou, Jian-Ming1; Li, Kang-Ning1; Wang, Xiao-Fei1; Liu, Jian-Cheng1; Peng, Zhao-Hua1; Liang, Zhuo1; Li, Ai-Ling1; Zheng, Jian1; Fan, Qi-Wen1; Li, Yun-Ju1; Wang, You-Bao1; Li, Zhi-Hong1; Shen, Yang-Ping1; Nan, Ding1; Nan, Wei1; Zhang, Yu-Qiang1; Li, Jia-Ying-Hao1; Tian, Jun-Wen1; Hou, Jiang-Lin1; Guo, Chang-Xin1; Zhang, Zhi-Cheng1; Zhu, Ming-Hao1; Chen, Yu-Wen1; Jiang, Yu-Chen1; Tian, Tao1; Ma, Jin-Long1; Liu, Yi-Hui1; Dong, Jing-Yu1; Liu, Run-Long1; Ma, Mei-Yue-Nan1; Chen, Yong-Shou1; Liu, Wei-Ping1,2; Guo, Bing1,3

2024-04-01

10.1007/s41365-024-01453-x

NUCLEAR SCIENCE AND TECHNIQUES   影响因子和分区

1001-8042

2210-3147

The Moon provides a unique environment for investigating nearby astrophysical events such as supernovae. Lunar samples retain valuable information from these events, via detectable long-lived "fingerprint" radionuclides such as Fe-60. In this work, we stepped up the development of an accelerator mass spectrometry (AMS) method for detecting Fe-60 using the HI-13 tandem accelerator at the China Institute of Atomic Energy (CIAE). Since interferences could not be sufficiently removed solely with the existing magnetic systems of the tandem accelerator and the following Q3D magnetic spectrograph, a Wien filter with a maximum voltage of +/- 60kV and a maximum magnetic field of 0.3 T was installed after the accelerator magnetic systems to lower the detection background for the low abundance nuclide Fe-60. A mu 1 mu m thick Si3N4 foil was installed in front of the Q3D as an energy degrader. For particle detection, a multi-anode gas ionization chamber was mounted at the center of the focal plane of the spectrograph. Finally, an Fe-60 sample with an abundance of 1.125 x 10(-10) was used to test the new AMS system. These results indicate that Fe-60 can be clearly distinguished from the isobar Ni-60. The sensitivity was assessed to be better than 4.3 x 10(-14) based on blank sample measurements lasting 5.8 h, and the sensitivity could, in principle, be expected to be approximately 2.5 x 10(-15) when the data were accumulated for 100 h, which is feasible for future lunar sample measurements because the main contaminants were sufficiently separated.

Accelerator mass spectrometry Wien filter Isobar separation Supernovae Chang'e-5 lunar samples

SCI ; EI

英语

其他

National Natural Science Foundation of China["12125509","12222514","11961141003","12005304"] ; National Key Research and Development Project[2022YFA1602301]

Nuclear Science & Technology ; Physics

Nuclear Science & Technology ; Physics, Nuclear

WOS:001232696400001

SPRINGER SINGAPORE PTE LTD

Web of Science

1.China Inst Atom Energy, POB 275 10, Beijing 102413, Peoples R China
2.Southern Univ Sci & Technol, Coll Sci, Shenzhen 518055, Peoples R China
3.Xi An Jiao Tong Univ, Sch Phys, Xian 710049, Peoples R China

Zhang, Yang,Yan, Sheng-Quan,He, Ming,et al. Stepped-up development of accelerator mass spectrometry method for the detection of ⁶⁰Fe with the HI-13 tandem accelerator[J]. NUCLEAR SCIENCE AND TECHNIQUES,2024,35(4).

Zhang, Yang.,Yan, Sheng-Quan.,He, Ming.,Zhao, Qing-Zhang.,Zhang, Wen-Hui.,...&Guo, Bing.(2024).Stepped-up development of accelerator mass spectrometry method for the detection of ⁶⁰Fe with the HI-13 tandem accelerator.NUCLEAR SCIENCE AND TECHNIQUES,35(4).

Zhang, Yang,et al."Stepped-up development of accelerator mass spectrometry method for the detection of ⁶⁰Fe with the HI-13 tandem accelerator".NUCLEAR SCIENCE AND TECHNIQUES 35.4(2024).