(EC+beta(+)) decay of neutron-deficient nuclide Ce-129
文献类型：期刊论文
| 作者 | Ge, YX; Xing, JP; Wang, CF ; Guo, YX; Ma, RC; Zhang, TM; Li, ZK; Xu, SW; Xie, YX
|
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2001-03-01 |
| 卷号 | 25期号:3页码:198-204 |
| 关键词 | EC/beta(+) decay He-jet tape transport system chemical separation decay scheme |
| ISSN号 | 0254-3052 |
| 英文摘要 | The nuclide Ce-129 was produced by a (O-16,4n) reaction with an enriched Sn-117 target. With the aid of a helium-jet tape transport system, the reaction products were transported to a shielded location,where Ce samples were prepared after chemical separation. The neighboring isotopes of Sn-117, Sn-116 and Sn-118,were also bombarded with O-16 beam. Different isotopes of Ce were further separated by comparing the products in the above three reactions. An activity with a half-life of 4.1 min in the chemically purified cerium samples was identified as Ce-129. Based on X-gamma -t and gamma-gamma -t coincidence measurements, the EC/beta (+) decay scheme of Ce-129, including 51 gamma lines, was proposed. Using the observed growth-decay curve of an intense 278.6keV gamma line of La-129 decay, the beta feeding branch from the ground state of Ce-129 directly to the ground state of La-129 was estimated to be (26 +/- 7) %. In addition, the gamma spectra gated by both La-K-alpha-X ray and intense 68.2keV gamma ray of Ce-129 decay as well as the time spectra of typical gamma rays were also presented here. |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000167615700004 |
| 出版者 | SCIENCE PRESS |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/1421]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） 近代物理研究所_实验物理中心 |
| 通讯作者 | Xie, YX |
| 作者单位 | Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, YX,Xing, JP,Wang, CF,et al. (EC+beta(+)) decay of neutron-deficient nuclide Ce-129[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2001,25(3):198-204. |
| APA | Ge, YX.,Xing, JP.,Wang, CF.,Guo, YX.,Ma, RC.,...&Xie, YX.(2001).(EC+beta(+)) decay of neutron-deficient nuclide Ce-129.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,25(3),198-204. |
| MLA | Ge, YX,et al."(EC+beta(+)) decay of neutron-deficient nuclide Ce-129".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 25.3(2001):198-204. |
入库方式： OAI收割
来源：近代物理研究所
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