Construction of a low‑temperature activated carbon radon adsorption system using air cooler
Construction of a low‑temperature activated carbon radon adsorption system using air cooler
复制标题
空冷器低温活性炭氡吸附系统的构建
DOI：
10.1007/s10967-022-08270-9
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发表时间：
2022
影响因子：
1.6
通讯作者：
Chi Li
中科院分区：
文献类型：
--
作者：
Chuang Li;Quan Tang;Xu Feng;Shoukang Qiu;Changgen Yang;Cong Guo;Tingyu Guan;Chi Li
地下低本底实验室在其工作环境中对减少氡的需求非常大。为此，本文利用空气冷却器构建了低温活性炭吸附氡的系统，并在室温和−~50℃以下的低温下测定了活性碳对氡的动态吸附系数。实验结果表明，在−为63.35℃、压力为3.5W/g的条件下，活性碳对氡的动态吸附系数达到688.79 L/g，是常温下的70多倍。在实验期间，发现了需要进一步解决的有效监管问题。
Underground low-background laboratories have a very large demand for radon reduction in their working environments. Therefore, in this paper, we have constructed a system for low-temperature activated carbon adsorption of radon by using air cooler and measured the dynamic adsorption coefficients of activated carbon on radon at room temperature and at a low temperature below − 50 °C. The experimental results show that the activated carbon dynamic adsorption coefficient reaches 688.79 L/g at a temperature of − 63.35 °C and a pressure of 3.5 atmospheres, which is more than 70 times higher than that at room temperature. During the experiments, problems of effective regulation were identified that need to be further addressed.