Identification of <sup>208</sup>Hg

Zhang Li; Jin Genming; Zhao Jinhua; Yang Weifan; Yang Yongfeng; Zhao Zhizheng; Zheng Jiwen; Sun Xiurong; Wang Jicheng; Li Zongwei; Qin Zhi; Guo Guanghui

Chinese Physics C> 1994, Vol. 18> Issue(Z1) : 1-8

Identification of ²⁰⁸Hg

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, Gansu, China

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Abstract：
This paper describes in detail the procedures used in the identification of the new neutron-rich isotope ²⁰⁸Hg and the measurement of its half-life. The identification included two step chemical separations. The first step was the collection of Hg element products from the irradiated target with high efficiency and good element selectivity, which was realized by means of an off-line melt Pb target device. The second step was to extract periodically the growing Tl element from the collected Hg sample. In the γ spectra of the extracted Tl sample, a 2614.6 keV activity with a half-life of 3 minutes was observed, which may only be assigned to the daughter ²⁰⁸Tl of ²⁰⁸Hg decay.
- neutron-rich nuclei ,
- chemical separation ,
- nuclide identification ,
- decay ,
- γ-activity

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Zhang Li, Jin Genming, Zhao Jinhua, Yang Weifan, Yang Yongfeng, Zhao Zhizheng, Zheng Jiwen, Sun Xiurong, Wang Jicheng, Li Zongwei, Qin Zhi and Guo Guanghui. Identification of ²⁰⁸Hg[J]. Chinese Physics C, 1994, 18(Z1): 1-8.

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Received: 1993-01-04

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Supponed by the National Natural Science Foundation of China and Grant No. LWTZ-1298 of the Chinese Academy of Sciences.

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沈阳化工大学材料科学与工程学院沈阳 110142

Identification of ²⁰⁸Hg

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, Gansu, China

Received Date: 1993-01-04

Fund Project: Supponed by the National Natural Science Foundation of China and Grant No. LWTZ-1298 of the Chinese Academy of Sciences.

Abstract: This paper describes in detail the procedures used in the identification of the new neutron-rich isotope ²⁰⁸Hg and the measurement of its half-life. The identification included two step chemical separations. The first step was the collection of Hg element products from the irradiated target with high efficiency and good element selectivity, which was realized by means of an off-line melt Pb target device. The second step was to extract periodically the growing Tl element from the collected Hg sample. In the γ spectra of the extracted Tl sample, a 2614.6 keV activity with a half-life of 3 minutes was observed, which may only be assigned to the daughter ²⁰⁸Tl of ²⁰⁸Hg decay.