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(4) : 296-301

Identification of ²⁰⁸Hg

Institute of Modem Physics, Academia Silica, Lanzhou 730000

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Abstract：
This paper describes in detail the procedure used in identifing the new neutronrich isotope ²⁰⁸Hg and measuring its half-life. The idetification included two-step chemical separations. The first step was the collection of Hg element products from the irradiated target with a high efficiency and good element selectivity, which was realized by means of an off-line melt Ph target device. The second step was to extract periodically the growing T1 element from the collected Hg sample. In the γspectra of the extracted T1 samples a 2614.6keV γ activity with a half-life of 3min was observed, which may only be assigned to the daughter ²⁰⁸T1 of ²⁰⁸Hg β^－ decay.

References

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张立等，高能物理与核物理，16（1992）767.[2]Zhao Jinhua,Zhang Li and Jin Genming,et al,Chin.J.Nucl.Phys.,14（1992）267,及其中的References.[3]H.Bruchertseifer,T.Reetz,B.L.Zhuikof and I.I.Zvara,Radiochimica Acta,26（1979）139.[4]V.Reus and W.Westmeier,Atomic Data and Nuclear Data Tables,29（1983）1.[5]卢希庭，原子核物理，原子能出版社，1982.[6]戴光曦、刘国兴，核素图册，科学出版社重庆分社，1987.[7]Table of Isotopes-seventh edition,Edited by C.Michael Lederer and virginia S.Shirley;John Willy Sons,INC,New York,Chicheter.Brisane.Toronto（1978）p.1231-1234.[8]B.nyman,A.Johansson,C.Bergman and G.Backstrom,Nucl.Phys.,88（1966）63.[9]H.V.Klavdor,J.Mtzinser and T.Oda,Atomic Data and Nuclear Data Tables,31（1984）81.[10]K.Takahashi,M.Yamada and K.Kondoh,Atomic Data and Nuclear Data Tables,12（1973）101.[11]A.Staudt,E.Bender,K.Muto and H.V.Klapdor,Atamic Data and Nuclear DataT ables,44（1990）79.

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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(4): 296-301.

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Received: 1900-01-01
Revised: 1900-01-01

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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

Corresponding author: Zhang Li,

Institute of Modem Physics, Academia Silica, Lanzhou 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-04-05

Abstract: This paper describes in detail the procedure used in identifing the new neutronrich isotope ²⁰⁸Hg and measuring its half-life. The idetification included two-step chemical separations. The first step was the collection of Hg element products from the irradiated target with a high efficiency and good element selectivity, which was realized by means of an off-line melt Ph target device. The second step was to extract periodically the growing T1 element from the collected Hg sample. In the γspectra of the extracted T1 samples a 2614.6keV γ activity with a half-life of 3min was observed, which may only be assigned to the daughter ²⁰⁸T1 of ²⁰⁸Hg β^－ decay.