国家自然科学基金(10075063)

作品数:10被引量:1H指数:1
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相关作者:袁双贵杨维凡肖永厚徐岩冰王贤义更多>>
相关机构:中国科学院近代物理研究所中国科学院更多>>
相关期刊:《核技术》《同位素》《Nuclear Science and Techniques》更多>>
相关主题:PMBP溶剂萃取TH更多>>
相关领域:理学核科学技术化学工程更多>>
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Solvent Extraction Study of 233Pa with PMBP(II)
《近代物理研究所和兰州重离子加速器实验室年报:英文版》2004年第1期59-59,共1页Ding Huajie Niu Yanning Yang Weifan Xu Yanbing Yuan Shuanggui Qin Zhi Wu Xiaolei 
Supported by the National Natural Science Foundation of china(No.10075063, 10175079), Major State Basic Research Devel- opment Program (No.G2000077400), and the Chinese Academy of Sciences.
关键词:溶剂萃取 水相介质 萃取行为 纯盐酸 MOL 硫酸 硝酸 
Isotope distribution of iridium in the interaction of 47MeV/nucleon ^(12)C with ^(197)Au
《Nuclear Science and Techniques》2004年第6期344-347,共4页YANGWei-Fan ZHAOZhi-Zheng XUYan-Bing YUANShuang-Gui MOUWan-Tong 
Supported by the National Natural Science Foundation of China (10075063); Major State Basic Research Development Program; under Contract Number (G2000077400) and the Chinese Academy of Sciences.
Thick gold targets were bombarded with 47 MeV/nucleon C ions and the radioactive isotopes of iridium 12 and platinum were produced through the multi-nucleon transfer reactions. The production cross-sections of iridium...
关键词: 同位素分布 多核子变换反应 中子丰度 重离子 
^(197)Os的合成和衰变
《同位素》2004年第1期1-4,共4页袁双贵 杨维凡 徐岩冰 肖永厚 王贤义 赵力民 王平志 李恒远 
国家自然科学基金资助项目(10075063和10175079);国家重点基础研究发展规划项目(G2000077400)
用14MeV中子轰击Pt,通过198Pt(n,2p)反应产生197Os。用高纯锗探测器观测197Os的衰变γ射线,获得了10条新γ射线,并指定为197Os的衰变,测定它的半衰期为2.8±0.6min。根据γ(X)-γ符合测量,建议一个197Os的部分衰变纲图。
关键词:^197Os  Γ射线 半衰期 重丰中子同位素 合成工艺 
从60MeV/u^(18)O离子辐照过的钍中分离Ra
《核技术》2003年第6期476-479,共4页肖永厚 杨维凡 袁双贵 徐岩冰 
国家自然科学基金(10075063);国家基础研究发展规划(G2000077400);中国科学院资助
对以212Pb, 133Ba和224Ra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60 MeV/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...
关键词:RA TH 离子交换 γ射线谱 
Extraction of trace thorium from hydrochloric acid media by 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone被引量:1
《Nuclear Science and Techniques》2003年第4期246-248,共3页YANG Wei-Fan, YUAN Shuang-Gui, XU Yan-Bing, XIAO Yong-Hou, XIONG Bing (Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000) 
the National Natural Science Foundation of China(No.10075063 and 10175079);by the Chinese Academy of Sciences(TK95T-03)
The paper describes the solvent extraction of trace thorium from hydrochloric acid media by1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) using a radioactive tracer technique. The percent extraction ofthorium was stu...
关键词: 盐酸 PMBP 溶剂萃取 放射性示踪剂 
Observation of exotic nuclear decay of (230)~U
《Nuclear Science and Techniques》2003年第1期49-52,共4页YANG Wei-Fan KONG Deng-Ming  
Supported by the National Natural Science Foundation of China (No. 10075063) ; Chinese Academy of Sciences (TK95T-03)
230Pa was produced through the 232Th(p,3n)230Pa reaction in the irradiated ThO2 powder targets with 35 MeV proton beam. Pa was radiochemically separated from ThO2 and other reaction products, and then thin sources of ...
关键词:铀230 原子核反应 钯230 反应截面 钍232 反应能量 
^(230)Acβ-延发裂变概率的测定
《中国科学(A辑)》2002年第8期743-748,共6页袁双贵 杨维凡 徐岩冰 肖永厚 罗亦孝 
国家自然科学基金(批准号:10075063;10175079);国家重点基础研究发展规划(批准号:G2000077400);中国科学院基金资助项目
由60MeV/μ18O离子照射天然钍靶所引起的232Th-2p反应产生230Ra,通过放射化学分离方法从被照射的靶中提取出镭元素并制成薄源,经230Ra230Ac得到230Ac.用云母裂变径迹探测器和PHGeγ射线探测器对来自源中的裂变碎片和γ谱进行记录和测量...
关键词:^230Ac β-延发裂变概率 多核子转移反应 放射化学分离 核衰变过程 概率测定 核物理学 裂变事件 
寻找^(230)U的集团衰变
《同位素》2002年第1期1-4,共4页杨维凡 潘强岩 马桃桃 袁双贵 郭俊盛 孔登明 乔际民 罗紫华 张沫天 王书鸿 
国家自然科学基金资助项目(19405006和10075063);中国科学院"九.五"重大项目资助
使用35MeV质子轰击ThO2,通过232Th(p,3n)230Pa反应产生目标核。用放射化学分离法从靶材料和其它反应产物中分离Pa,制备薄的Pa源。用HPGe探测器测量Pa源的γ能谱,使用聚乙烯对苯二酸酯(PTEP)固体径迹探测器记录重离子径迹,首次发现了230...
关键词:集团衰变 固体径迹探测器 化学蚀刻 铀230 钍232 原子核反应 
Separation of protactinium in the reaction of 60MeV/nucleon ^(18)O ions with natural uranium
《Nuclear Science and Techniques》2002年第2期119-124,共6页YANG Wei-Fan, YUAN Shuang-Gui, XIAO Yong-Hou, XU Yan-Bing, FANG Ke-Ming (Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000) 
Supported by the National Natural Science Foundation of China(10075063),and by the Chinese Academy of Sciences(TK95T-03)
The activities of protactinium were produced by the multi-nucleontransfer reactions in bombardment of the natural uranium with 60 MeV/nucleon 1sOions. A simple, relatively fast radiochemical procedure was used for ext...
关键词: PMBP提取 天然铀 
Half-life measurement of neutron-rich isotope^(237)Th
《Nuclear Science and Techniques》2001年第4期284-288,共5页XUYan-Bing XIAOYong-Hou  
Supported by the National Natural Science Foundation of China (10075063), Major State Basic Research Development Program (G20000
MeV/u 18O ions were used to bombard natural uranium targets, and the heavy neutron-rich isotope 237Th was produced via multi-nucleon transfer reaction and dissipative fragmentation of the heavy target. A relatively fa...
关键词:^237Th 富中子同位素 半寿命测量 
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