Joe Kihsoo, Jeon Young-Shin, Han Sun-Ho, Lee Chang-Heon, Ha Yeong-Keong, Song Kyuseok
Korea Atomic Energy Research Institute, Yuseong, Daejeon, Republic of Korea.
Appl Radiat Isot. 2012 Jun;70(6):931-6. doi: 10.1016/j.apradiso.2012.03.015. Epub 2012 Mar 24.
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±0.16 for (238)Pu, 1.02±0.14 for (239)Pu, 1.08±0.06 for (240)Pu, 1.06±0.16 for (241)Pu, and 1.13±0.08 for (242)Pu. Using the Pu data obtained in this work, correlations were derived between the alpha activity ratios of (238)Pu/((239)Pu+(240)Pu), 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.
在阴离子交换分离后，使用α能谱法和质谱法对高燃耗压水堆燃料样品中的钚同位素含量进行了检测。将测量值与ORIGEN - 2程序计算的结果进行了比较。平均而言，测量值（m）与计算值（c）的比值（m/c）对于（238）Pu为1.22±0.16，对于（239）Pu为1.02±0.14，对于（240）Pu为1.08±0.06，对于（241）Pu为1.06±0.16，对于（242）Pu为1.13±0.08。利用本工作中获得的钚数据，得出了（238）Pu/（（239）Pu +（240）Pu）的α活度比、钚的α比活度与钚同位素的原子百分比丰度之间的相关性。利用这些相关性，计算了目标样品中钚同位素的原子百分比丰度。根据钚的同位素，这些计算结果与实验得出的值在2%至8%的范围内相符。
