Guide to the Expression of Uncertainty in Measurement (GUM) based on Law of Propagation of Uncertainty is widely used in estimation of uncertainty associated with measurements. However, Joint Committee for Guides in Metrology (JCGM) (JCGM 101:2008, 2008) suggests the use of Monte Carlo method (MCM) which is based on propagation of distributions as an alternate tool for evaluation of uncertainty of measurement. The present study deals with procedure for application of MCM to estimate the uncertainty of measurement of radioactivity in soil, carried out by Gamma spectrometry. In order to enhance the sampling efficiency and to obtain a desired level of accuracy of the outcomes, Latin hypercube sampling strategies are applied in uncertainty assessment in MCM approach in addition to conventional random sampling. A comparison of the findings of two methodologies is discussed, and conclusion is drawn.

中文翻译：

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用伽马能谱法测量天然放射性核素：具有不确定性评估的分析和数值方法

基于不确定度传播定律的测量不确定度表达指南（GUM）被广泛用于估计与测量相关的不确定度。但是，计量指南联合委员会（JCGM）（JCGM 101：2008，2008）建议使用基于分布传播的蒙特卡洛方法（MCM）作为评估测量不确定度的替代工具。本研究涉及通过伽马能谱法应用MCM估算土壤中放射性测量不确定度的程序。为了提高采样效率并获得期望的结果准确性水平，除了传统的随机采样之外，拉丁超立方体采样策略还应用于MCM方法的不确定性评估中。