Mostafa Y A M, Vasyanovich M, Zhukovsky M, Zaitceva N
Ural Federal University, Ekaterinburg, Russia.
Ural Federal University, Ekaterinburg, Russia Institute of Industrial Ecology UB RAS, Ekaterinburg, Russia.
Radiat Prot Dosimetry. 2015 Jun;164(4):587-90. doi: 10.1093/rpd/ncv316. Epub 2015 May 15.
The measurement of radon equivalent equilibrium concentration (EECRn) is very simple and quick technique for the estimation of radon progeny level in dwellings or working places. The most typical methods of EECRn measurements are alpha radiometry or alpha spectrometry. In such technique, the influence of alpha particle absorption in filters and filter effectiveness should be taken into account. In the authors' work, it is demonstrated that more precise and less complicated calibration of EECRn-measuring equipment can be conducted by the use of the gamma spectrometer as a reference measuring device. It was demonstrated that for this calibration technique systematic error does not exceed 3 %. The random error of (214)Bi activity measurements is in the range 3-6 %. In general, both these errors can be decreased. The measurements of EECRn by gamma spectrometry and improved alpha radiometry are in good agreement, but the systematic shift between average values can be observed.
测量氡等效平衡浓度（EECRn）是一种非常简单快捷的技术，用于估算住宅或工作场所中的氡子体水平。EECRn测量的最典型方法是α辐射测量法或α能谱法。在这种技术中，应考虑α粒子在过滤器中的吸收影响和过滤器的有效性。在作者的工作中，证明了使用γ能谱仪作为参考测量设备，可以对EECRn测量设备进行更精确且不太复杂的校准。结果表明，对于这种校准技术，系统误差不超过3%。（214）Bi活度测量的随机误差在3%至6%的范围内。一般来说，这两种误差都可以减小。通过γ能谱法和改进的α辐射测量法对EECRn进行的测量结果吻合良好，但可以观察到平均值之间的系统偏差。
