| 从60 MeV/u18O离子辐照过的钍中分离Ra |
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| 引用本文： | 肖永厚,杨维凡,袁双贵,徐岩冰.从60 MeV/u18O离子辐照过的钍中分离Ra[J].核技术,2003,26(6):476-479. |
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| 作者姓名： | 肖永厚 杨维凡 袁双贵 徐岩冰 |
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| 作者单位： | 中国科学院近代物理研究所,兰州,730000 |
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| 基金项目： | 国家自然科学基金(10075063), 国家基础研究发展规划(G2000077400)和中国科学院资助 |
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| 摘 要： | 对以^212Pb,^133Ba和^224Ra比作示踪剂，（NH4）2H2EDTA为淋洗剂，用阳离子交换法从Pb、Ba中分离Ra的工艺条件做了研究。提出了一个从60MeV／u ^18O离子辐照过的ThO2靶中分离Ra的放射化学流程。实验结果表明，该流程对主要反应产物，特别是Ba的去污较好，Ra的产额可达70％以上。
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| 关 键 词： | Ra Th 离子交换 γ射线谱 |
| 修稿时间： | 2001年10月9日 |
Separation of Ra from ThO2 target irradiated by 60 MeV/u 18O ions |
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| XIAO Yonghou,YANG Weifan,YUAN Shuanggui,XU Yanbing.Separation of Ra from ThO2 target irradiated by 60 MeV/u 18O ions[J].Nuclear Techniques,2003,26(6):476-479. |
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| Authors: | XIAO Yonghou YANG Weifan YUAN Shuanggui XU Yanbing |
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| Abstract: | The experimental conditions for separation of Ra from Ba with cation exchange technique by using 133Ba, 224Ra and 212Pb as tracers, and 0.1 mol/L (NH4)2H2EDTA-0.3 mol/L NH4Ac solution as eluent are studied. A proce-dure suitable for separation of Ra from the ThO2 targets irradiated by 60 MeV/u 18O ions is developed. The results demon-strate that the decontamination effect for main reaction products, specially radioactive Ba isotopes, is satisfactory. The chemical yield of Ra is more than 70%. |
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| Keywords: | Ra Th Cation exchange technique g-ray spectrum |
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