Determination of plutonium content in high burnup pressurized water reactor fuel samples and its use for isotope correlations for isotopic composition of plutonium

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• 作者：Kihsoo Joe ; ^{ksjoe@kaeri.re.kr} ; Young-Shin Jeon ; Sun-Ho Han ; Chang-Heon Lee ; Yeong-Keong Ha ; Kyuseok Song
• 关键词：Pu isotopes contents ; High burnup spent nuclear fuels ; Isotope correlation of Pu ; Alpha specific activity ; Alpha spectrometry
• 刊名：Applied Radiation and Isotopes
• 出版年：2012
• 期刊代码：6_09698043
• 类别：ce
• 出版时间：June, 2012
• 卷：70
• 期：6
• 页码：931-936
• 文件大小：261 K

摘要

The content of plutonium isotopes in high burnup pressurized water reactor fuel samples was examined using both alpha spectrometry and mass spectrometry after anion exchange separation. The measured values were compared with results calculated by the ORIGEN-2 code. On average, the ratios (m/c) of the measured values (m) over the calculated values (c) were 1.22卤0.16 for ²³⁸Pu, 1.02卤0.14 for ²³⁹Pu, 1.08卤0.06 for ²⁴⁰Pu, 1.06卤0.16 for ²⁴¹Pu, and 1.13卤0.08 for ²⁴²Pu. Using the Pu data obtained in this work, correlations were derived between the alpha activity ratios of ²³⁸Pu/(²³⁹Pu+²⁴⁰Pu), the alpha specific activities of Pu, and the atom%abundances of the Pu isotopes. Using these correlations, the atom%abundances of the plutonium isotopes in the target samples were calculated. These calculated results agreed within a range from 2 to 8%of the experimentally derived values according to the isotopes of plutonium.