固体径迹探测技术在环境氡监测中的应用  

APPLICATION OF THE SSNTD TO ENVIRONMENTAL RADON MONITORING

作　　者：郭美玉 童纯菡[2] 刘晓辉[2] 

机构地区：[1]河南省计量科学研究院,河南郑州450000 [2]成都理工大学核技术与自动化学院,四川成都610059

出　　处：《矿物岩石》2007年第4期112-115,共4页Mineralogy and Petrology

摘　　要：对醋酸纤维素和CR-39探测器进行比较研究,在确定两种探测器的蚀刻条件和改进径迹计数方法的基础上,对CR-39探测器进行刻度,刻度系数为0.035 Tc/cm^2/Bq·h/m^3。应用固体径迹测氡方法对安阳地区和成都市室内外氡浓度进行测量,结果表明安阳地区室内外氡浓度范围在13.0 Bq/m^3～54.2 Bq/m^3之间,成都市室内外氡浓度范围14.1 Bq/m^3～43.2 Bq/m^3之间,低于GB/t16146-1995规定的氡浓度标准。监测过程发现,装饰地板材料是影响室内氡浓度的一个主要因素,水泥厂、钢铁厂等工业污染是影响室外氡浓度水平的重要因素。Based on comparision of the etching condition and counting track method of the CR-39 cellulose acetate,the CR-39 detector is calibrated with a calibration coefficient of 0. 035 Tc/cm^2/ Bq·h/m^3. Radon concentration of Anyang district and Chengdu city is measured. The result shows that radon concentrations in Anyang district are 13.0 Bq/m^3～54.2 Bq/m^3 and in chengdu are 14.1 Bq/m^3 ～43.2 Bq/m^3. All results are lower than the radon concentrations of GB/t16146- 1995. Some factors affecting the radon concentration are discussed and the important one is the floor materials indoor. The pollutions caused by concrete factory, steel factory, etc. are possibly important factor outdoor.

关 键 词：固体径迹探测器 氡 环境监测 

分 类 号：X833[环境科学与工程—环境工程] X837