Disposal procedure for contaminated surface of tritium handling facility in the decommissioning operation

Disposal procedure for contaminated surface of tritium handling facility in the decommissioning operation
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氚处理设施退役作业中污染表面的处置程序

DOI:
10.1016/j.fusengdes.2017.04.013
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发表时间:
2017
影响因子:
1.7
通讯作者:
Satoshi Fukada
Satoshi Fukada
中科院分区:
工程技术3区
文献类型:
--
作者:
Toshiharu Takeishi;Kazuya Furuichi;Kazunari Katayama;Ryotaro Yamamoto;Yoshiya Kawabata;Satoshi Fukada

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在氚处理设施的退役作业中,对地面、墙壁和屋顶的氚污染进行了监测。在大约86%的总表面测量点中检测到大量的氚污染,最多需要刮掉70万毫米才能消除氚污染。在一些测量氚深度分布的样品中,观察到最高的氚浓度出现在内部,而不是表面。该深度分布的测量结果还与我们以前考虑氚在混凝土中的扩散、吸附、解吸以及混凝土中氚水蒸气与大气水蒸气之间的同位素交换反应的计算结果进行了讨论。
For the decommissioning operation of tritium handling facility, surveillance of contamination with tritium on floor, wall and roof was performed. Significant amount of tritium contamination was detected in approximately 86% of total surface measurement points and maximally 70 mm of scraping was required to eliminate tritium contamination. In some samples for measurement of tritium depth profile, the highest tritium concentration was observed at the inside but not the surface. This measurement result of depth profile is also discussed with our previous calculation results considering diffusion, adsorption, desorption of tritium in the concrete and isotope exchange reaction between tritiated water vapor in the concrete bulk and atmospheric water vapor.
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DOI: --
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