| Alpha Decay of the Neutron-deficient Isotopes 215,216U |
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| 作者姓名： | 张志远 甘再国 马龙 杨华彬 王建国 郁琳 姜舰 田玉林 丁兵 郭松 王永生 黄天衡 孙明道 王凯龙 |
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| 作者单位： | 1.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; |
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| 摘 要： | The most neutron-deficient isotopes 215;216U were produced in the complete-fusion reaction 180W(40Ar, 4-5n)215,216U. Evaporation residues recoiled from the target were separated in-flight from the primary beam by the gas-filled recoil separator SHANS and subsequently identified on the basis of correlated -decay chains. Two -decaying states were identified in 216U, one for the ground state and the other for the isomeric state with 8+(h9=2f7=2) configuration. The -decay properties for 215;216U and the systematics of 8+ isomeric state in N =124,126 isotones were investigated.
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| 关 键 词： | complete-fusion reaction uranium isotope α -decay energy half-life |
Alpha Decay of the Neutron-deficient Isotopes 215,216U |
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| ZHANG Zhiyuan,GAN Zaiguo,MA Long,YANG Huabin,WANG Jianguo,YU Lin,JIANG Jian,TIAN Yulin,DING Bing,GUO Song,WANG Yongsheng,HUANG Tianheng,SUN Mingdao,WANG Kailong.Alpha Decay of the Neutron-deficient Isotopes 215,216U[J].Nuclear Physics Review,2016,33(2):217-220. |
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| Authors: | ZHANG Zhiyuan GAN Zaiguo MA Long YANG Huabin WANG Jianguo YU Lin JIANG Jian TIAN Yulin DING Bing GUO Song WANG Yongsheng HUANG Tianheng SUN Mingdao WANG Kailong |
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| Affiliation: | 1.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2.University of Chinese Academy of Sciences, Beijing 100049, China;3.School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | The most neutron-deficient isotopes 215;216U were produced in the complete-fusion reaction 180W(40Ar, 4-5n)215,216U. Evaporation residues recoiled from the target were separated in-flight from the primary beam by the gas-filled recoil separator SHANS and subsequently identified on the basis of correlated -decay chains. Two -decaying states were identified in 216U, one for the ground state and the other for the isomeric state with 8+(h9=2f7=2) configuration. The -decay properties for 215;216U and the systematics of 8+ isomeric state in N =124,126 isotones were investigated. |
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| Keywords: | complete-fusion reaction uranium isotope α-decay energy half-life |
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