Estimating the number of components in an OSL decay curve using the Bayesian Information Criterion

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	Estimating the number of components in an OSL decay curve using the Bayesian Information Criterion
	Peng, Jun 1; Dong, Zhibao 1; Han, Fengqing2 ; Han, Yuanhong 3; Dai, Xueling 1
	2014-12-01
发表期刊	GEOCHRONOMETRIA
卷号	41 期号:4 页码:334-341
关键词	Osl Decay Curves Number Of Components Bayesian Information Criterion
摘要	The optically stimulated luminescence (OSL) decay curve is assumed to consist of a number of first-order exponential components. Improper estimation of the number of components leads to under-or over-fitting of the curve under consideration. Hence, correct estimation of the number of components is important to accurately analyze an OSL decay curve. In this study, we investigated the possibility of using the Bayesian Information Criterion to estimate the optimal number of components in an OSL decay curve. We tested the reliability of this method using several hundred measured decay curves and three simulation scenarios. Our results demonstrate that the quality of the identification can be influenced by several factors: the measurement time and the number of channels; the variability of the decay constants; and the signal-to-noise ratios of a decaying component. The results also suggest that the Bayesian Information Criterion has great potential to estimate the number of components in an OSL decay curve with a moderate to high signal-to-noise ratio.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5662
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所盐湖地质与环境实验室
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Lanzhou Ctr Oil & Gas Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Peng, Jun,Dong, Zhibao,Han, Fengqing,et al. Estimating the number of components in an OSL decay curve using the Bayesian Information Criterion[J]. GEOCHRONOMETRIA,2014,41(4):334-341.
APA	Peng, Jun,Dong, Zhibao,Han, Fengqing,Han, Yuanhong,&Dai, Xueling.(2014).Estimating the number of components in an OSL decay curve using the Bayesian Information Criterion.GEOCHRONOMETRIA,41(4),334-341.
MLA	Peng, Jun,et al."Estimating the number of components in an OSL decay curve using the Bayesian Information Criterion".GEOCHRONOMETRIA 41.4(2014):334-341.