| 同位素稀释质谱-γ能谱法测定天然铀燃料元件燃耗 |
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| 引用本文： | 陈云明,张劲松,梁帮宏,李兵,冯伟伟,钟军,胡银,刘志,孙鹏.同位素稀释质谱-γ能谱法测定天然铀燃料元件燃耗[J].四川大学学报(自然科学版),2016,53(5):1076-1080. |
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| 作者姓名： | 陈云明 张劲松 梁帮宏 李兵 冯伟伟 钟军 胡银 刘志 孙鹏 |
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| 作者单位： | 中国核动力研究设计院,, |
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| 摘 要： | 天然铀燃料元件燃耗低,裂变产物少,燃耗测定难度大.本文选取137 Cs为燃耗监测核素,采用高效液相色谱法(HPLC)分离燃料元件溶液中的铀,同位素稀释-热电离质谱法(ID-TIMS)测定燃料元件中铀浓度,基于高灵敏度γ能谱法测定裂变产物137 Cs.介绍了铀与裂变产物高效液相色谱分离、铀质谱测定、稀释剂与样品比例优化、137 Cs点源制备、数据修正计算等过程,给出了3根天然铀燃料棒所取样品的燃耗测定值.
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| 关 键 词： | 天然铀燃料元件 同位素稀释质谱法 燃耗 137Cs 高效液相色谱 |
| 收稿时间： | 2015/5/14 0:00:00 |
| 修稿时间： | 2015/5/22 0:00:00 |
Burnup determination of natural uranium fuel by isotope dilution mass spectrometry and gamma spectroscopy |
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| CHEN Yun-Ming,ZHANG Jin-Song,LIANG Bang-Hong,LI Bin,FENG Wei-Wei,ZHONG Jun,HU Yin,LIU ZHI and SUN Peng.Burnup determination of natural uranium fuel by isotope dilution mass spectrometry and gamma spectroscopy[J].Journal of Sichuan University (Natural Science Edition),2016,53(5):1076-1080. |
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| Authors: | CHEN Yun-Ming ZHANG Jin-Song LIANG Bang-Hong LI Bin FENG Wei-Wei ZHONG Jun HU Yin LIU ZHI and SUN Peng |
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| Institution: | The First Sub-institute of Nuclear Power Institute of China,The First Sub-institute of Nuclear Power Institute of China,The First Sub-institute of Nuclear Power Institute of China,The First Sub-institute of Nuclear Power Institute of China,The First Sub-institute of Nuclear Power Institute of China,The First Sub-institute of Nuclear Power Institute of China,The First Sub-institute of Nuclear Power Institute of China,The First Sub-institute of Nuclear Power Institute of China and The First Sub-institute of Nuclear Power Institute of China |
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| Abstract: | It is difficult that burnup determination of natural uranium fuel as to its lower burnup and less fission products. 137Cs was selected as the fuel burnup monitoring nuclide. High performance liquid chromatography (HPLC) was used to separate uranium in the solution of fuel elements. Isotope dilution thermal ionization mass spectrometry (ID-TIMS) was used to determine the concentration of uranium in the fuel. Fission product-137Cs activity concentration was measured by high sensitivity gamma ray spectroscopy. High performance liquid chromatography separation, mass spectrometry determination, sample mixing calculation, 137Cs point source preparation, data correction process were introduced. Burnup of 3 natural fuel rods was determined in this paper.It is difficult that burnup determination of natural uranium fuel as to its lower burnup and less fission products. 137Cs was selected as the fuel burnup monitoring nuclide. High performance liquid chromatography (HPLC) was used to separate uranium in the solution of fuel elements. Isotope dilution thermal ionization mass spectrometry (ID-TIMS) was used to determine the concentration of uranium in the fuel. Fission product-137Cs activity concentration was measured by high sensitivity gamma ray spectroscopy. High performance liquid chromatography separation, mass spectrometry determination, sample mixing calculation, 137Cs point source preparation, data correction process were introduced. Burnup of 3 natural fuel rods was determined in this paper. |
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| Keywords: | natural uranium fuel isotope dilution mass spectrometry burnup 137Cs HPLC |
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