文章基本信息

标题：Analysis of a Uranium Solution for Evaluating the Total Number of Fissions in the JCO Criticality Accident in Tokai-mura
其他标题：Analysis of a Uranium Solution for Evaluating the Total Number of Fissions in the JCO Criticality Accident in Tokai-mura
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作者：GUNZO UCHIYAMA ; KAZUO WATANABE ; MASAKATSU MIYAUCHI 等
期刊名称：Journal of Radiation Research
印刷版ISSN：0449-3060
电子版ISSN：1349-9157
出版年度：2001
卷号：42
期号：SUPPL
页码：11-16
DOI：10.1269/jrr.42.S11
摘要：The uranium solution in the precipitation tank in the JCO's uranium conversion facility was analyzed in order to evaluate the total number of fissions in the criticality accident. Two analytical groups at JAERI performed chemical analyses independently in order to check the validity of the results: the concentration of the fission products ( 95 Zr, 99 Mo, 103 Ru, 131 I, 140 Ba, etc), uranium, boron and impurity elements in the solution. The analytical results obtained by the two groups were almost in agreement within the analytical error. The number of fissions per one gram of uranium in the accident was determined to be (1.5±0.1)×10 14 . Also, the total number of events was evaluated to be (2.5±0.1)×10 18 fissions using the total amount of uranium (16.6 kg) fed into the precipitation tank at the accident.
关键词：JCO criticality accident; Analysis; Total number of fissions; Uranium; Fission products