The Decay Scheme of <SUP>175</SUP>Er

Zhang Xueqian; Yuan Shuanggui; Yang Weifan; Mou Wantong; Yu Xian; Li Zongwei; Guo Tianrui; Du Yifei; Luo Yixiao

Chinese Physics C> 1996, Vol. 20> Issue(8) : 673-677

The Decay Scheme of ¹⁷⁵Er

Institute of Modem Physics,The Chinese Academy of Sciences,Lanzhou 730000

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Abstract：
The ¹⁷⁵Er activity was produced via the reaction ¹⁷⁶Yb(n,2p) ¹⁷⁵Er by 14MeV neutron irradiation of a natural ytterbium metal target with a thickness of～80mg/cm2.X-γ and γ-γ coincidence measurements were employed to identify ¹⁷⁵Er activity.The half-life of ¹⁷⁵Er has been determined to be (1.2±0.3)min. Eight new gamma rays were assigned to the decay of ¹⁷⁵Er. A partial decay scheme of ¹⁷⁵Er has been proposed for the first time, from which a ground rotational band has been assigned to ¹⁷⁵Tm.

References

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R.M.Chasteler,J.M.Nitschke,R.B.Firestone et al,Z.Phys,A332（1989）239[2]K.Becker,F.Meissner,W.D.Schmidt-ott et al,Nucl.Phys,A522（1991）557[3]Yuan Shuanggui,Zhang Tianmei,Pan Qiangyan et al,Z.Phys,A344（1993）355.[4]Yuan Shuanggui,Zhang Tianmei,Xu Shuwei et al,Z.Phys,A346（1993）187[5]V.Pursiheimo,T.Tuurnala,T.Raunemaa,Z.Phys,252（1972）283[6]N.Kaffell,W.Kurcewicz,Nucl.Phys.,A255（1975）339[7]LφvhφidenG et al,Nucl.Phys.,A327（1976）64[8]A.K.Jain,R.K.Sheline,P.C.Sood et al,Rev.Mod.Phys,62（1990）393.[9]Stelson,P.H.,Grodzins,L,Nucl.Data,Sect,A1（1966）21

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Zhang Xueqian, Yuan Shuanggui, Yang Weifan, Mou Wantong, Yu Xian, Li Zongwei, Guo Tianrui, Du Yifei and Luo Yixiao. The Decay Scheme of ¹⁷⁵Er[J]. Chinese Physics C, 1996, 20(8): 673-677.

Zhang Xueqian, Yuan Shuanggui, Yang Weifan, Mou Wantong, Yu Xian, Li Zongwei, Guo Tianrui, Du Yifei and Luo Yixiao. The Decay Scheme of ¹⁷⁵Er[J]. Chinese Physics C, 1996, 20(8): 673-677. shu

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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

The Decay Scheme of ¹⁷⁵Er

Corresponding author: Zhang Xueqian,

Institute of Modem Physics,The Chinese Academy of Sciences,Lanzhou 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1996-08-05

Abstract: The ¹⁷⁵Er activity was produced via the reaction ¹⁷⁶Yb(n,2p) ¹⁷⁵Er by 14MeV neutron irradiation of a natural ytterbium metal target with a thickness of～80mg/cm2.X-γ and γ-γ coincidence measurements were employed to identify ¹⁷⁵Er activity.The half-life of ¹⁷⁵Er has been determined to be (1.2±0.3)min. Eight new gamma rays were assigned to the decay of ¹⁷⁵Er. A partial decay scheme of ¹⁷⁵Er has been proposed for the first time, from which a ground rotational band has been assigned to ¹⁷⁵Tm.