Production of Very Neutron-deficient Actinide Nuclei using the 36Ar and 40Ar Beams

• 作者: Gan Zaiguo He Xiaotao Huang Minghui Ma Long Tian Yulin Wang Jianguo Wang Shouyu Wang Yongsheng Yang Chunli Yang Huabin Zhang Zhiyuan Zhao Zhen Zhou Houbing Zhou Shangui
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报:英文版
• 学科: 物理学
• 关键词: DECAY LISTED DEFICIENT
• 年，卷（期）: 2018,（1）
• 页码范围: 52-53
• 页数: 2页
• 分类号: O57

摘要

In order to systematically investigate the-decay properties of U-isotopes near the N=126 shell and study the fine structures of 218Pa and 211−213Th,enriched targets,180W,182Wand 176Hf,were bombarded by the 36Ar and 40Ar beams provided the Heavy Ion Research Facility in Lanzhou(HIRFL).Combinations of beam and target as well as the beam energy,beam intensity,target thickness,irradiation time were listed in Table 1.Fusion-evaporation residues(ERs)were recoiled from the targets and separated from the primary beams using the gas filled recoil separator,SHANS[1].After passing through a multi-wire proportional chamber,the ERs were implanted into a Si-box detector[2]amounted at the focal plane of SHANS.Gamma rays emitted from the ERs were detected by three Ge detectors attached to the Si-box.All-decay and gamma-ray signals were registered and proceeded by a digital data acquisition system.