王玮,丁卫东,杨洪广

• 1:中国原子能科学研究院

摘要(Abstract)：

采用定容吸/放氢的方法研究了老化时间4.7年的储氚铀床的吸放氚特性,探讨不同氦-3释放量对铀床吸氚速率的影响规律,利用物理气相传输法(PVT)方法测得铀床在不同温度下(653、673、683及693 K)的解吸氚压力-时间曲线(P-t曲线),铀床在室温不同氦-3含量下的吸氚曲线,并分析铀床室温吸氚速率。结果表明,氚化铀经过长时间储氚后,解吸氚后会有大量的氦-3释放,解吸过程为吸热过程,氦-3含量对铀床的可逆吸附容量影响较小,长时间的老化不影响铀床贮氚性能,当氦-3含量小于5%时,老化铀床的吸氚速率会大幅增加。

关键词(KeyWords)： 铀;氚;氦-3

Abstract:

Keywords:

基金项目(Foundation): 科技部中子管项目(2017YFF0104201);; 中核集团自主研发项目

作者(Author): 王玮,丁卫东,杨洪广

DOI: 10.13289/j.issn.1009-6264.2020-0190

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