Production of Very Neutron-deficient Actinide Nuclei using the ^(36)Ar and ^(40)Ar Beams
利用^(36)Ar与^(40)Ar束流合成非常缺中子的锕系核作者机构:不详
出 版 物:《IMP & HIRFL Annual Report》 (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))
年 卷 期:2018年第1期
页 面:52-53页
学科分类:07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
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 ***-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 *** rays emitted from the ERs were detected by three Ge detectors attached to the ***-decay and gamma-ray signals were registered and proceeded by a digital data acquisition system.