尼日利亚某大学校园内的室内氡气调查。
Indoor radon survey in a university campus of Nigeria.
作者信息
Obed R I, Lateef H T, Ademola A K
机构信息
Department of Physics, University of Ibadan, Nigeria.
出版信息
J Med Phys. 2010 Oct;35(4):242-6. doi: 10.4103/0971-6203.71760.
CR-39 tracketch detectors were used for the measurement of (222)Rn concentration in 24 offices in Nigeria's oldest university campus in order to estimate the effective dose to the occupants from (222)Rn and its progeny. The dosimetric measurements were made over a period of 3 months. Questionnaires were distributed and analyzed. The radon concentration ranged from 157 to 495 Bq/m(3), with an arithmetic mean and standard deviation of 293.3 and 79.6 Bq/ m(3), respectively. The effective dose to the workers was estimated and this varied from 0.99 to 3.12 mSv/ y, with a mean of 1.85 mSv/y. The radon concentrations were found to be within the reference levels of ICRP.
使用CR - 39径迹蚀刻探测器测量了尼日利亚最古老大学校园24间办公室内的氡 - 222浓度，以便估算氡 - 222及其子体对居住者的有效剂量。剂量测量持续了3个月。发放并分析了调查问卷。氡浓度范围为157至495贝可勒尔每立方米，算术平均值和标准差分别为293.3和79.6贝可勒尔每立方米。估算了工作人员的有效剂量，其范围为0.99至3.12毫希沃特每年，平均值为1.85毫希沃特每年。发现氡浓度在国际辐射防护委员会的参考水平范围内。
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