A New Neu tron-rich Isotope:<SUP>186</SUP>Hf

Yang Weifan; Yuan Shuanggui; Li Zongwei; He Jianjun; Ma Taotao; Fang Keming; Shen Shuifa; Gan Zaiguo; Pan Qiangyan; Mou Wantong; Su Denggui; Chen Zhantu; Guo Tianrui; Guo Junsheng; Liu Hongye; Shi Lijun; Zhao Zhizheng; Ma Huifang

Chinese Physics C> 1997, Vol. 21> Issue(10) : 958-959

A New Neu tron-rich Isotope:¹⁸⁶Hf

Institute of Modern physics, the Chinese Academy of Sciences, languor 730000

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Abstract：
The radioactive nuclide ¹⁸⁶Hf has been produced via multinucleon transfer reaction by 60MeV/u ¹⁸O ion irradiation of the natural tungsten. The radiochemical separation was performed to isolate the hafnium from tungsten and the complex mixture of the reaction products. The activity of the hafnium was measured using a HPGe detector The new neutron-rich isotope ¹⁸⁶Hf has been identified for the first time by measuring the growth and decay of the 737.5keV γ-ray from its daughter ¹⁸⁶Ta. The half-life of ¹⁸⁶Hf was determined to be (2.6±1.2) min.

References

[1]	Zhang Li et al.,Phys,Rev.,C49（1994）592,[2]Yuan shanggui et al.,Z Phys,A352（1995）23.[3]Ftrestone R. B.,Nucl. Data Sheets, 55（1988）583.

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Yang Weifan, Yuan Shuanggui, Li Zongwei, He Jianjun, Ma Taotao, Fang Keming, Shen Shuifa, Gan Zaiguo, Pan Qiangyan, Mou Wantong, Su Denggui, Chen Zhantu, Guo Tianrui, Guo Junsheng, Liu Hongye, Shi Lijun, Zhao Zhizheng and Ma Huifang. A New Neu tron-rich Isotope:¹⁸⁶Hf[J]. Chinese Physics C, 1997, 21(10): 958-959.

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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

A New Neu tron-rich Isotope:¹⁸⁶Hf

Corresponding author: Yang Weifan,

Institute of Modern physics, the Chinese Academy of Sciences, languor 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-10-05

Abstract: The radioactive nuclide ¹⁸⁶Hf has been produced via multinucleon transfer reaction by 60MeV/u ¹⁸O ion irradiation of the natural tungsten. The radiochemical separation was performed to isolate the hafnium from tungsten and the complex mixture of the reaction products. The activity of the hafnium was measured using a HPGe detector The new neutron-rich isotope ¹⁸⁶Hf has been identified for the first time by measuring the growth and decay of the 737.5keV γ-ray from its daughter ¹⁸⁶Ta. The half-life of ¹⁸⁶Hf was determined to be (2.6±1.2) min.