论文标题
扬阳地下实验室的ra浓度变化
Radon concentration variations at the Yangyang underground laboratory
论文作者
论文摘要
在2004年10月至2022年5月之间，已经在700 m深的阳地下实验室中测量了空气中的ra的浓度。分别测量了两个实验区域（称为A6和A5）的平均浓度为53.4 $ \ pm $ \ pm $ 0.2 bq/m3和33.5 $ \ pm $ \ pm $ 0.1 bq/m3。 A5区域的较低值反映了更好的温度控制和通风的存在。发现在两个A5实验室内采样的ra浓度与房间外部的局部表面温度相关，相关系数为r = 0.22，r = 0.70。因此，ra浓度显示出季节性变化，因为地面季节驱动的局部温度会影响实验区域的空气通风。年度剩余浓度的适合表明，振幅每年8月31美元$ \ pm $ 6天。
The concentration of radon in the air has been measured in the 700 m-deep Yangyang underground laboratory between October 2004 and May 2022. The average concentrations in two experimental areas, called A6 and A5, were measured to be 53.4$\pm$0.2 Bq/m3 and 33.5$\pm$0.1 Bq/m3, respectively. The lower value in the A5 area reflects the presence of better temperature control and ventilation. The radon concentrations sampled within the two A5 experimental rooms' air are found to be correlated to the local surface temperature outside of the rooms, with correlation coefficients r = 0.22 and r = 0.70. Therefore, the radon concentrations display a seasonal variation, because the local temperature driven by the overground season influences air ventilation in the experimental areas. A fit on the annual residual concentrations finds that the amplitude occurs each year on August, 31$\pm$6 days.
