| 基于Nafion膜的氚甄别测量技术 |
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| 引用本文： | 汪久山,陈志林,穆龙,常瑞敏,吴冠银,孟丹,卢玲,陈建明,王和义.基于Nafion膜的氚甄别测量技术[J].核化学与放射化学,2014,36(2):124-128. |
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| 作者姓名： | 汪久山 陈志林 穆龙 常瑞敏 吴冠银 孟丹 卢玲 陈建明 王和义 |
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| 作者单位： | 1.中国工程物理研究院 核物理与化学研究所，四川 绵阳621999；2.96401部队，陕西 宝鸡721000；3.68048部队，陕西 宝鸡721000 |
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| 基金项目： | 国家磁约束核聚变能研究专项(2011GB111005) |
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| 摘 要： | 在线氚甄别测量中,甄别装置的甄别性能直接决定着测量数据的准确性和可靠性。本文基于Nafion膜进行了氚甄别测量的实验研究,分别在HTO、HT以及HTO+HT气氛下进行了实验,详细分析了气体瞬时流量、温度等条件对甄别性能的影响。结果表明,HTO在Nafion膜中的渗透率很容易达到90%以上,HT在Nafion膜中的渗透率小于0.19%。在适当的温湿度及气体流量条件下,一级Nafion干燥器在氚甄别测量中对HTO有99%以上的分离效果,HTO对HT的甄别比可达106以上。
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| 关 键 词： | Nafion HTO HT 渗透率 |
Key Technology of the Online Discriminating Measurements for HTO |
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| WANG Jiu-shan;CHEN Zhi-lin;MU Long;CHANG Rui-min;WU Guan-yin;MENG Dan;LU Ling;CHEN Jian-ming;WANG He-yi.Key Technology of the Online Discriminating Measurements for HTO[J].Journal of Nuclear and Radiochemistry,2014,36(2):124-128. |
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| Authors: | WANG Jiu-shan;CHEN Zhi-lin;MU Long;CHANG Rui-min;WU Guan-yin;MENG Dan;LU Ling;CHEN Jian-ming;WANG He-yi |
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| Affiliation: | 1.Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China；2.Troops of 96401, Baoji 721000, China; 3.Troops of 68048, Baoji 721000, China |
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| Abstract: | During the online monitoring for tritium, the effectiveness of measurements is decided by the performance of the discrimination devices(Nafion). Experiments have been made to examine the performance of Nafion in terms of gas instantaneous flux and temperature. The research shows that a permeability as high as 90% can be reached for HTO in the Nafion while less than 0.19% for HT. More than 99% of HTO can be separated which gives a discriminating ratio between HTO and HT above 106 with a single-stage Nafion provided that a good control of temperature and humidity as well as gas instantaneous flux have been achieved. |
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| Keywords: | Nafion HTO HT permeability |
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