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大量铀溶液中^(237)Np含量的γ谱法测量 被引量:1

The Determination of ^(237)Np in the Large Amount of Uranium Solution by γ-spectrum
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摘要 研究建立了γ谱法直接测定大量铀溶液中2 3 7Np的方法。利用2 3 7Np在 86keV附近的γ射线峰扣除其子体2 3 3 Pa的影响 ,可以定量测定2 3 7Np。铀溶液中的大量铀对 86keV附近的γ射线有较强吸收 ,86keV附近峰面积的对数与铀浓度呈线性关系 ,用最小二乘法进行拟合线性 ,对铀的影响加以校正。 The determination method of 237 Np in the large amount of uranium by γ spectrum is developed. Based on the γ radiation peak at about 86 keV of 237 Np, eliminating the influence of its daughter species 233 Pa, 237 Np can be determined quantitatively by γ spectrum. Large amount of uranium contained in the solution strongly absorb the γ ray of about 86 keV, but the logarithm of the peak area has linear relationship with the uranium concentration. Filling this relationship by the way of least square method, the absorption effect of uranium can be corrected, and then the 237 Np can be directly determined in uranium solution by γ spectrum.
出处 《原子能科学技术》 EI CAS CSCD 2001年第6期537-541,共5页 Atomic Energy Science and Technology
关键词 ^237NP Γ谱 分析 铀溶液 镎237 核燃料 测量 Np large amount of uranium γ spectrum determination
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参考文献4

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同被引文献11

  • 1Walter H J,Geibert W,van der Rutgers Loeff M M. Shallow vs.deep-water scavenging of 231pa and 230Th in radionuclide enriched waters of the Atlantic sector of the Southern Ocean[J].Deep-Sea Research Part I:Oceanographic Research Papers,2001.471-493. 被引量:1
  • 2Moran S B,Shen C C,Edwards R L. 231Pa and 230Th in surface sediments of the Arctic Ocean:implications for 231Pa/230Th fractionation,boundary scavenging,and advective export[J].Earth and Planetary Science Letters,2005.235-248. 被引量:1
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  • 8Kim J I,Lagally H,Born H J. Ion exchange in aqueous and in aqueous-organic solvents:Part Ⅰ.Anion-exchange behavior of Zr,Nb,Ta and Pa in aqueous HC1-HF and in HC1-HF-organic solvent[J].Analytica Chimica Acta,1973,(01):29-43. 被引量:1
  • 9Luo S D,Ku T L. Ocenaic 231Pa/230Th ratio influenced by particle composition and remineralization[J].Earth and Planetary Science Letters,1999.183-195. 被引量:1
  • 10Regelous M,Turner S P,Elliott T R. Measurement of femtogram quantities of protactinium in silicate rock samples by multicollector inductively coupled plasma mass spectrometry[J].Analytical Chemistry,2004,(13):3584-3589. 被引量:1

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