Internal Conversion Effect Applications in Identifying New Neutron-Rich Nuclides in the Rare-Earth Region

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

Chinese Physics C> 1997, Vol. 21> Issue(3) : 201-204

Internal Conversion Effect Applications in Identifying New Neutron-Rich Nuclides in the Rare-Earth Region

Institute of Modern Physics,The Chinese Scademy of Sciences,Lanzhou 730000

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Abstract：
The new neutron-rich isotope ¹⁷⁵Er activity was produced via the reaction ¹⁷⁶Yb(n,2p)by 14MeV neutron irradiation of natural ytterbium metals. When nuclide ¹⁷⁵Er decayed to its daughter nuclide ¹⁷⁵Tm, Tm characteristic X rays would be emitted with a certain ratio due to the internal conversions.So X-γ and γ-γ coincidence measurements were employed to successfully identify the neutron-rich isotope activities of rare-earth element from other rare-earth reaction products.And a partial decay scheme of ¹⁷⁵Er has been proposed for the first time.

References

[1]

戴光曦, 实验原子核物理, 原子能出版社(1995) p 101.[2] Yuan Shuanggui et al., Z. Phys., A344(1993)355.[3] Yuan Shuanggui et al., Z. Phys., A346(1993)187.[4] Lrpvhqiden. G et al., Nucl. Phys., ,4327 (1976164.[5] Zhang Xueqian, Yuan Shuanggui et al, The y decay of a new neutronrich nucleus ,175Er, Z. Phys., to be published.

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Zhang Xueqian, Yuan Shuanggui, Yang Weifan, Li Zongwei, Mou Wantong, Yu Xian, Luo Yixiao and Guo Tianrui. Internal Conversion Effect Applications in Identifying New Neutron-Rich Nuclides in the Rare-Earth Region[J]. Chinese Physics C, 1997, 21(3): 201-204.

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

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