英国国家放射防护委员会氡校准程序。
U.K. National Radiological Protection Board Radon Calibration Procedures.
作者信息
Cliff K D
机构信息
National Radiological Protection Board, Chilton, Didcot, Oxon, OX11 ORQ, U.K.
出版信息
J Res Natl Inst Stand Technol. 1990 Mar-Apr;95(2):135-138. doi: 10.6028/jres.095.014.
A procedure for the calibration of instruments for the detection of Rn in air is described. The method is based on the alpha-spectrometric determination of the concentration in air of Po in the calibration chamber. The calibration chamber is described, together with the method of maintaining a high aerosol concentration. The Po concentration at steady state in the chamber is found to be 98% of the Rn concentration typically. An assessment of the sources of uncertainty in the method presented indicate that the Rn concentration in the chamber can be determined with an overall uncertainty of about 7% at the 95% confidence level.
描述了一种用于校准空气中氡检测仪器的程序。该方法基于对校准室内空气中钋浓度的α能谱测定。介绍了校准室以及维持高气溶胶浓度的方法。发现校准室内稳态下的钋浓度通常为氡浓度的98%。对所提出方法中不确定度来源的评估表明，在95%置信水平下，校准室内氡浓度的测定总不确定度约为7%。
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