CAJ | 학술논문

氡气运移的研究成果表明,氡气的运移具有方向性.本文从实验入手,采用静态、累积、高灵敏度的测氡方法,对氡累积水平扩散分布进行了测量.采用最小二乘法拟合方法对不同温度条件下氡及其子体的水平扩散系数进行了计算.实验研究结果表明,氡及其子体的水平扩散系数与温度的相关系数为0.92,两者呈线性正相关关系;在恒温(30℃)条件下的实测水平扩散系数为0.049 cm~2·s~(-1);要使氡在空气中的水平扩散系数达到经典值0.1 cm~2·s~(-1),其环境温度应达到40℃以上.
동기운이적연구성과표명,동기적운이구유방향성.본문종실험입수,채용정태、루적、고령민도적측동방법,대동루적수평확산분포진행료측량.채용최소이승법의합방법대불동온도조건하동급기자체적수평확산계수진행료계산.실험연구결과표명,동급기자체적수평확산계수여온도적상관계수위0.92,량자정선성정상관관계;재항온(30℃)조건하적실측수평확산계수위0.049 cm~2·s~(-1);요사동재공기중적수평확산계수체도경전치0.1 cm~2·s~(-1),기배경온도응체도40℃이상.
Various experiments to measure radon migration coefficients indicated that the migration of radon and its daughters is directional.The horizontal diffusion data of radon in the air has been measured and studied in laboratory conditions using the accumulative radon-measurement method in a static state with high sensitivity.The mathematical calculation to obtain horizontal diffusion coefficients of radon under the condition of different temperature is done by fitting a difference equation to the measured radon diffusion data.A linear positive correlation coefficient of 0.92 between horizontal diffusion coefficient of radon and diffusion temperature, was obtained.The horizontal diffusion coefficient of radon is 0.049 cm~2·s~(-1) at constant temperature of 30℃.To obtain the typical radon diffusion coefficient of 0.1 cm~2·s~(-1), the diffusion condition of above 40℃ can be deduced.