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zuo de xin tong wei su :186hf
Author(s): 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, (Institute of
Pages: 0-
0+0-0
Year: 1998
Issue:
12
Journal: High Energy Physics and Nuclear Physics
Keyword: 厚靶; 多核子转移反应; 放射化学分离; 生长和衰变;
Abstract: 利用兰州重离子加速器提供的60MeV/u的(18)O离子束轰击天然钨靶,通过奇异的多核子转移反应生成(186)Hf.采用快速放射化学分离技术从钨及反应产物的混合物中分离出铪,由高纯锗(HPGe)探测器测量样品的γ活性,观测到了(186)Hf的子体(186)Taγ活性的生长、衰变行为.由此表明:本实验首次合成并鉴别了重丰中子新核素(186)Hf,并测定它的半衰期为(2.6±1.2)min.
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