A New Isotope of Hafnium: 186Hf

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He Jianjun, Yuan Shuanggui, Yang Weifan, Li Zongwei, Ma Taotao, Fang Keging, Shen Shuifa, Gan Zaiguo, Pan Qiangyan, Chen Zhantu, Guo Tianrui, Mou Wantong, Su Denggui, Xu Yanbing, Guo Junsheng, Liu Hongye, Shi Li Lijun, Zhao Zhizheng and Ma Huifang. A New Isotope of Hafnium: 186Hf[J]. Chinese Physics C, 1998, 22(12): 1057-1060.
He Jianjun, Yuan Shuanggui, Yang Weifan, Li Zongwei, Ma Taotao, Fang Keging, Shen Shuifa, Gan Zaiguo, Pan Qiangyan, Chen Zhantu, Guo Tianrui, Mou Wantong, Su Denggui, Xu Yanbing, Guo Junsheng, Liu Hongye, Shi Li Lijun, Zhao Zhizheng and Ma Huifang. A New Isotope of Hafnium: 186Hf[J]. Chinese Physics C, 1998, 22(12): 1057-1060. shu
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Received: 1998-01-04
Revised: 1900-01-01
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A New Isotope of Hafnium: 186Hf

    Corresponding author: He Jianjun,
  • Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000

Abstract: 60MeV /u 18O ion beam delivered by the Heavy Ion Research Facility in Lanzhou (HIRFL) bombarded the natural tungsten targets. The 186Hf was produced by multinucleon transfer reacions. The hafnium fraction was separated radiochemically from the mixture of tungsten and the reaction products. The γ activity was measured with a HPGe detector. The growth and decay of 186)Ta γ-rays has been observed, which indicates the (186)Hf as a parent of 186Ta were produced. The half-life of 186Hf has been determined to be (2.6±1.2)min.

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