ISO 11665-2:2019 环境中辐射的测量 空气：氡-222 第2部分：测定其短寿命衰变产物平均α潜能浓度的综合测量方法
标准编号：ISO 11665-2:2019
中文名称：环境中辐射的测量 空气：氡-222 第2部分：测定其短寿命衰变产物平均α潜能浓度的综合测量方法
英文名称：Measurement of radioactivity in the environment — Air: radon-222 — Part 2: Integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products
发布日期：2019-09
标准范围
本文件描述了短寿命氡222衰变产物的综合测量方法[4]。它给出了测量空气中短寿命氡-222衰变产物的平均势能α浓度的指示和测量装置的使用条件。本文件涵盖了从几周到一年不等的样本。本文件不适用于最大采样持续时间小于一周的系统。所述测量方法适用于短寿命氡-222衰变产物的潜在α能量浓度大于10 nJ/m3且低于1 000 nJ/m3的空气样品。注仅供参考，鉴于氡同位素222和220的行为相似，本文件还讨论了氡-220衰变产物的情况。
This document describes integrated measurement methods for short-lived radon？222 decay products[4]. It gives indications for measuring the average potential alpha energy concentration of short？lived radon-222 decay products in the air and the conditions of use for the measuring devices.This document covers samples taken over periods varying from a few weeks to one year. This document is not applicable to systems with a maximum sampling duration of less than one week.The measurement method described is applicable to air samples with potential alpha energy concentration of short-lived radon-222 decay products greater than 10 nJ/m3 and lower than 1 000 nJ/m3.NOTE For informative purposes only, this document also addresses the case of radon-220 decay products, given the similarity in behaviour of the radon isotopes 222 and 220.
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