气溶胶和氡浓度变化对氡子体影响的探讨

Discussion on the Influence of Aerosols and the Change of Radon Concentration to Radon Daughter

为了得到气溶胶变化后对氡子体产生的影响,实验通过气溶胶粒径谱仪SMPS测试氡室内不同浓度气溶胶,分析气溶胶的变化情况,根据AlphaGUARD测氡仪以及AlphaPM子体仪测试变化的氡浓度不同气溶胶下子体变化情况。实验结果表明:在两个NaCl浓度的气溶胶条件下,气溶胶的总量随着气溶胶发生器中的NaCl浓度的增大而变大,由于氡子体结合态随气溶胶浓度改变,氡子体浓度也随气溶胶浓度的增大而增大。并且在相同气溶胶浓度情况下,氡子体的浓度随着氡浓度的增大而增大。

In order to get the impact of radon daughter after the aerosol changed, the experiment analyzes the changes of aerosol by using aerosol particle spectrometer SMPS to test different concentrations aerosol in radon chamber, and tests different radon concentration under different aerosol changes according to the AlphaGUARD and AlphaPM. The experimental results show that：Under the condition of two aerosols of NaC1 concentration, the amount of aerosols gets heighten with the increase of NaCl concentration of aerosol generator. Due to the radon daughter combined state changes with aerosol concentration, concentration of radon daughter also increases along with the increase of aerosol concentration. And under the condition of same aerosol concentration, the concentra-tion of radon daughter grows with the increase of radon concentration.