2-2 Lifetime Measurement of the Low-lying Excited States 7/21^+in^87Zr

• 作者: Ding Bing Gan Zaiguo Guo Song Huang Tianheng Liu Minliang Lv Bingfeng Ma Long Qiang Yunhua Sun Mingdao Wang Jianguo Wang Kailong Yang Huabin Zheng Yong Zhou Xiaohong
• 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
• 年，卷（期）: 2016,（1）
• 页码范围: 34-34
• 页数: 1页
• 分类号: O4

摘要

Lifetime measurements of low-lying excited states in^87Zr have been performed viaβ-γcoincidences.The 127 MeV^32S beam was delivered from the Sector-Focusing Cyclotron(SFC)of the Heavy Ion Research Facility in Lanzhou(HIRFL).The parent nuclei^87Nb were produced by the reaction 58Ni(32S,2p1n),at a beam energy 127 MeV through a 8 um Al degrader.A 200ug/cm^2 layer of 58Ni evaporated onto a 200ug/cm^2 thick carbon foil was employed as the target.After evaporation residues were separated from the projectile beams by the gas-filled recoil separator SHANS[1],the nuclei of interest 87Zr can be obtained with a higher purity and then were implanted into a 300um silicon detector.