辐射防护2024，Vol.44Issue(6)：687-694,8.
辐照和热耦合作用对改性钠基膨润土铯吸附影响研究
Coupling effects of thermal and γ irradiation on the adsorption performance of bentonite to Cs
赵帅维 1毛亮 1白锦绣 1刘伟 1贾梅兰 1赵彦东 1李洪辉 1高超 1杨仲田1
作者信息
摘要
Abstract
In order to study the influence of gamma-ray irradiation and thermal simultaneous action on the absorption property of buffer material,this study is based on the modified sodium bentonite which is from Gaomiaozi.The distribution coefficients of 137 Cs are measured separately in the modified sodium bentonite and the modified sodium bentonite undergoing gamma-ray irradiation and thermal simultaneous action by batch method.The experiment results show that gamma rays irradiation and thermal simultaneous action helps improve the ability to absorb 137 Cs on the sodium bentonite under the experimental conditions.Compared with the modified sodium bentonite,the increment is in the range of 38.5%to 46.8%.A pilot evaluation model for nuclide release,migration,and dose estimation of the HLW geological repository was established.GoldSim safety evaluation software was used to simulate the release rate in the near and far field and radiation effects on the biosphere of 135 Cs under the reference sites.The simulation results show that the ambient dose caused by 135 Cs can be reduced by increasing the thickness of bentonite after being irradiated by waste.关键词
改性钠基膨润土/辐照和热耦合作用/铯/分配系数/迁移模拟Key words
modified sodium bentonite/coupling effects of thermal and γ irradiation/cesium/distribution coefficient/migration simulation分类
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赵帅维,毛亮,白锦绣,刘伟,贾梅兰,赵彦东,李洪辉,高超,杨仲田..辐照和热耦合作用对改性钠基膨润土铯吸附影响研究[J].辐射防护,2024,44(6):687-694,8.
