Measurement of ⁵⁹Ni and ⁶³Ni by accelerator mass spectrometry at CIAE

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• 作者：Xiaoming Wang^a ; Ming He^a ; ^{minghe@ciae.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Xiangdong Ruan^b ; Yongning Xu^a ; Hongtao Shen^c ; Liang Du^a ; Caijin Xiao^a ; Kejun Dong^a ; Shan Jiang^a ; Xuran Yang^a ; Xiaoxi Lan^b ; Shaoyong Wu^a ; Qingzhang Zhao^a ; Li Cai^b ; Fangfang Pang^c
• 关键词：59Ni ; 63Ni ; AMS ; Q3D magnetic spectrometer ; Measurement
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2015
• 出版时间：15 October 2015
• 年：2015
• 卷：361
• 期：Complete
• 页码：34-38
• 全文大小：992 K

文摘

The long lived isotopes ⁵⁹Ni and ⁶³Ni can be used in many areas such as radioactive waste management, neutron dosimetry, cosmic radiation study, and so on. Based on the large accelerator and a big Q3D magnetic spectrometer, the measurement method for ⁵⁹Ni and ⁶³Ni is under development at the AMS facility at China Institute of Atomic Energy (CIAE). By using the 螖E-Q3D technique with the Q3D magnetic spectrometer, the isobaric interferences were greatly reduced in the measurements of ⁵⁹Ni and ⁶³Ni. A four anode gas ionization chamber was then used to further identify isobars. With these techniques, the abundance sensitivities of ⁵⁹Ni and ⁶³Ni measurements are determined as ⁵⁹Ni/Ni = 1 × 10⁻¹³ and ⁶³Ni/Ni = 2 × 10⁻¹², respectively.