空调房内氡及其子体日变化规律初探  

Preliminary Study of Daily Variation of Radon and Its Progeny in the Air-conditioned Room

作　　者：李雯[1] 张雄杰[1] 汤彬[1] 王仁波[1] 

机构地区：[1]核技术应用教育部工程研究中心(东华理工大学),南昌330013

出　　处：《核电子学与探测技术》2013年第3期372-375,共4页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金项目支持(11065002);核技术应用教育部工程研究中心项目支持(HJSJYB2010-05);东华理工大学校长基金(DHXK1114)

摘　　要：采用AlphaGUARD测氡仪及其子体附件AlphaPM对室内氡及其子体浓度进行了长时间监测。实验表明:在室内自然通风和开启空调两种情况下,氡和氡子体浓度的变化规律基本一致,且都在国标GB/T 16146-1995氡浓度限值以下,但开启空调状态下氡和氡子体的浓度均高于自然通风状态;采用氡子体潜能浓度直接估算得到的氡子体有效剂量率明显高于采用氡浓度和推荐平衡因子换算得到的值,建议在实际评价中直接测量氡子体潜能浓度,来计算室内的氡子体有效剂量。In this paper, the variation pattern of radon and its progeny indoor was monitored with radon monitor AlphaGUARD and its accessory AlphaPM. Experimental results show that： the variation patterns of radon and its progeny are the same in the case of natural ventilation and with air - conditioner on. The concentration of radon and its progeny are all below the limit value of national radon concentration standard （ GB/T 16146 - 1995）, but the value measured in the case of natural ventilation is lower than that with air - conditioner on. The effective dose rate of radon progeny estimated with potential - energy concentration indoor is higher than that translated by radon concentration and recommended balance factor, so in the actual evaluation, potential - energy concentration is advised to be measured directly and used to calculate the effective dose of radon progeny.

关 键 词：空调房 氡及其子体 潜能浓度 有效剂量 

分 类 号：X591[环境科学与工程—环境工程]