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后处理厂释放气体中稳定惰性气体同位素在核保障监督中的应用研究

后处理厂释放气体中稳定惰性气体同位素在核保障监督中的应用研究[J]. 核化学与放射化学, 2004, 26(4): 198-198.
引用本文: 后处理厂释放气体中稳定惰性气体同位素在核保障监督中的应用研究[J]. 核化学与放射化学, 2004, 26(4): 198-198.
Stable Noble Gas Isotopes Released From Reprocessing Plant Used for Nuclear Safeguards[J]. Journal of Nuclear and Radiochemistry, 2004, 26(4): 198-198.
Citation: Stable Noble Gas Isotopes Released From Reprocessing Plant Used for Nuclear Safeguards[J]. Journal of Nuclear and Radiochemistry, 2004, 26(4): 198-198.

后处理厂释放气体中稳定惰性气体同位素在核保障监督中的应用研究

详细信息
  • 中图分类号: O61314;;O61315

Stable Noble Gas Isotopes Released From Reprocessing Plant Used for Nuclear Safeguards

  • 摘要: 用Origen2.1计算模式对压水堆元件中Kr,Xe相关同位素与燃耗的关系进行了计算,并估算了后处理厂烟囱释放气体中Kr,Xe各稳定同位素的来源,丰度和原子浓度。82Kr,129Xe可用作环境样品中惰性气体同位素的天然本底;裂片83Kr/86Kr、84Kr/86Kr、131Xe/134Xe和132Xe/134Xe的丰度比值,可用于指示乏燃料燃耗,进而估算正在被分离的钚同位素组成,并有可能对后处理厂实行保障监督。
    Abstract: The correlations between stable noble gas isotopic ratios and the burnup of spent fuel are calculated by Origen2.1 code. The production of stable Kr, Xe nuclides in reactor fuel and the subsequent dilution of these nuclides in the reprocessing plant stacks are estimated for PWR fuel with a burnup of 30 GWd/tU.~(82)Kr and~(129)Xe, at the natural background, are suggested being baseline for subtracting atmospheric parts of the other isotopes in the samples consisting of both fissiongenic and natural noble gas. The nuclide ratios of~(83)Kr/~(86)Kr,~(84)Kr/~(86)Kr,~(131)Xe/~(134)Xe and~(132)Xe/~(134)Xe near linearly correlated with the burnup of the spent fuel can be used for the nuclear safeguards.
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出版历程
  • 收稿日期:  2003-12-03
  • 刊出日期:  2004-11-19

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