A New Isotope of Hafnium: <SUP>186</SUP>Hf

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; Ma Huifang

Chinese Physics C> 1998, Vol. 22> Issue(12) : 1057-1060

A New Isotope of Hafnium: ¹⁸⁶Hf

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

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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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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.

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Received: 1998-01-04
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

A New Isotope of Hafnium: ¹⁸⁶Hf

Corresponding author: He Jianjun,

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

Received Date: 1998-01-04

Accepted Date: 1900-01-01

Available Online: 1998-12-05

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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A New Isotope of Hafnium: ¹⁸⁶Hf

A New Isotope of Hafnium: ¹⁸⁶Hf