论文标题
Canfranc地下实验室中$^{222} $ rn浓度的长期测量
Long term measurement of the $^{222}$Rn concentration in the Canfranc Underground Laboratory
论文作者
论文摘要
我们报告了Canfranc Underground Laboratory（LSC）的$^{222} $ rn空气浓度，相对湿度，大气压和温度的$^{222} $ rn空气浓度，相对湿度，大气压和温度的六年结果。我们已经计算了这些参数之间的所有Pearson相关系数，并且发现$^{222} $ rn浓度与相对湿度之间存在正相关。两个相关变量均显示季节性周期性。实验室数据的联合分析和四年（2015-2018）在实验室之外的气象变量显示了$^{222} $ rn浓度与外部温度之间的相关性。收集的信息强调了在LSC当前和将来实验中设计良好的RN减轻策略的相关性；特别是，我们已经检查了两年（2017-2018）ANAIS-112实验的缓解程序的良好表现。最后，在另一项测量（2019-2021）中，有两年的直播时间，我们向实验室中安装的ra缩式减排系统提供的剩余$^{222} $ rn含量的剩余$^{222} $ rn含量。
We report the results of six years (2013-2018) of measurements of $^{222}$Rn air concentration, relative humidity, atmospheric pressure and temperature in the halls A, B and C of the Canfranc Underground Laboratory (LSC). We have calculated all the Pearson correlation coefficients among these parameters and we have found a positive correlation between the $^{222}$Rn concentration and the relative humidity. Both correlated variables show a seasonal periodicity. The joint analysis of laboratory data and four years (2015-2018) of the meteorological variables outside the laboratory shows the correlation between the $^{222}$Rn concentration and the outside temperature. The collected information stresses the relevance of designing good Rn-mitigation strategies in current and future experiments at LSC; in particular, we have checked for two years (2017-2018) the good performance of the mitigation procedure of the ANAIS--112 experiment. Finally, in another measurement (2019-2021) for two years of live time, we report an upper limit to the residual $^{222}$Rn content of the radon-free air provided by the radon abatement system installed in the laboratory.
