Study on Sorption of Tritium on Various Material Surfaces and Its Application to Decontamination of Tritium-Sorbing Materials
Study on Sorption of Tritium on Various Material Surfaces and Its Application to Decontamination of Tritium-Sorbing Materials
复制标题
各种材料表面吸氚的研究及其在吸氚材料净化中的应用
DOI：
10.13182/fst89-a39874
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发表时间：
1989
影响因子：
0.9
通讯作者：
M. Saeki
中科院分区：
文献类型：
--
作者：
N. Masaki;T. Hirabayashi;M. Saeki
用高比活度气态氚研究了氚在不锈钢、铝和硼硅酸盐玻璃表面的吸附行为，并将新的研究成果应用于氚吸附材料的化学去污和热去污。该行为取决于每种材料的表面特性。吸附的氚的总量是评价暴露于气态氚的时间的函数。用化学腐蚀法获得了吸附氚的深度分布。根据这些结果，对实际不锈钢样品进行了去污。在773 K下真空烘烤24小时，用稀盐酸（5%）溶解2小时，使作者获得200的去污因子。
Behavior of sorption of tritium on surfaces of stainless steel, aluminum and borosilicate glass has been studied using gaseous tritium with high specific activity and the newly obtained knowledge has been applied to chemical and thermal decontamination of tritium-sorbing materials. The behavior depends on a character of surface of each material. The total amount of sorbed-tritium is evaluated a function of time of exposure to gaseous tritium. The depth-profile of sorbed-tritium is obtained by chemical etching method. From these results, practical samples of stainless steel were decontaminated. The vacuum-bakeout for 24 hours at 773 K and dissolution by dilute (5%) HCl for 2 hours enable the authors to obtain the decontamination factor of 200.