ISO 11929:2010 电离辐射测量（判断阈、探测限和置信区间限）特征限的确定 基本原理和应用

标准编号：ISO 11929:2010

中文名称：电离辐射测量（判断阈、探测限和置信区间限）特征限的确定 基本原理和应用

英文名称：Determination of the characteristic limits (decision threshold, detection limit and limits of the confidence interval) for measurements of ionizing radiation — Fundamentals and application

发布日期：2010-03

标准范围

ISO 11929:2010规定了电离辐射计量领域的一个程序，用于计算非负电离辐射测量值的“判定阈值”、“检测限”和“置信区间限”，当进行预选时间或计数的计数测量时，测量结果来自总计数率和背景计数率，以及基于评估模型的进一步数量。具体而言，被测量物可以是净计数率，即总计数率和背景计数率之差，也可以是样本的净活动。它还可能受到测量系统校准、样品处理和其他因素的影响。

ISO 11929:2010 specifies a procedure, in the field of ionizing radiation metrology, for the calculation of the "decision threshold", the "detection limit" and the "limits of the confidence interval" for a non-negative ionizing radiation measurand, when counting measurements with preselection of time or counts are carried out, and the measurand results from a gross count rate and a background count rate as well as from further quantities on the basis of a model of the evaluation. In particular, the measurand can be the net count rate as the difference of the gross count rate and the background count rate, or the net activity of a sample. It can also be influenced by calibration of the measuring system, by sample treatment and by other factors.

标准预览图