标准摘要
[中文适用范围]： 本文件描述了用于确定空气中短命氡222衰变产物的活度浓度和计算潜在α能量浓度的点测量方法。 本文件给出了在给定地点采样几分钟后对潜在的α能量浓度进行点测量的指示，以及测量设备的使用条件。 所描述的测量方法适用于潜在α能量浓度的快速评估。 所获得的结果不能外推至短命氡 222 衰变产物的年度估计潜在 α 能量浓度。 因此，此类测量不适用于评估年度暴露或确定是否减轻公民对氡或氡衰变产物的暴露。 该测量方法适用于α势能浓度大于5 nJ/m3的空气样品。 注：本文件不涉及 radon-220 衰变产物的潜在贡献。 [外文原描述]： This document describes spot measurement methods for determining the activity concentration of short-lived radon-222 decay products in the air and for calculating the potential alpha energy concentration. This document gives indications for performing a spot measurement of the potential alpha energy concentration, after sampling at a given place for several minutes, and the conditions of use for the measuring devices. The measurement method described is applicable for a rapid assessment of the potential alpha energy concentration. The result obtained cannot be extrapolated to an annual estimate potential alpha energy concentration of short-lived radon-222 decay products. Thus, this type of measurement is not applicable for the assessment of annual exposure or for determining whether or not to mitigate citizen exposures to radon or radon decay products. This measurement method is applicable to air samples with potential alpha energy concentration greater than 5 nJ/m 3 . NOTE This document does not address the potential contribution of radon-220 decay products.
英文名称Measurement of radioactivity in the environment — Air: radon-222 — Part 3: Spot measurement method of the potential alpha energy concentration of its short-lived decay products