| 氡在聚合物膜中渗透系数的测定 |
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| 引用本文： | 刘茹佳,李军,丘寿康,程芬,陈颖,唐泉.氡在聚合物膜中渗透系数的测定[J].核电子学与探测技术,2016(2):189-192. |
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| 作者姓名： | 刘茹佳 李军 丘寿康 程芬 陈颖 唐泉 |
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| 作者单位： | 1. 南华大学核科学技术学院,衡阳,421001;2. 新疆辐射环境监督站,乌鲁木齐,830000 |
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| 基金项目： | 国家自然科学基金(11275094)资助，中国科学院战略性先导科技专项资金( XDA10010500)资助。 |
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| 摘 要： | 为向江门中微子实验用膜的选择提供参考,研究了一种测定氡在聚合物膜中渗透系数的方法,设计加工出可利用闪烁液进行采样的膜渗透采样装置,并测量了不同类型聚合物膜的渗透系数。实验结果表明:膜渗透采样装置的本底及密闭性符合实验要求;聚合物膜表面氡析出达到稳定状态至少需要18d;PVC膜的氡渗透系数最低。
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| 关 键 词： | 液体闪烁计数 氡 渗透系数 聚合物膜 |
Determination of Radon Permeability Through Polymer Films |
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| Abstract: | To provide a reference for selection of polymer films in Jiangmen neutrino experiments ,a method for measuring the permeability of radon through polymer films has been developed .A device based on the measure-ment of liquid scintillationhas also been produced ,and various polymefoilsof the radon diffusion coefficient were tested .The results show that:the background and air impermeability of the device mainly accorded the prospec -tive desire;it takes at least 18 days for polymer films after establishing stationary radon diffusion through the sample;the permeability coefficient of PVC film is the lowest . |
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| Keywords: | liquid scintillation counting radon permeability coefficient polymer film |
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