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Improving the reliability of single-aliquot regenerative dose dating using a new method of data analysis
Wang, XL (Wang, X. L.)[1]; Wintle, AG (Wintle, A. G.)[2,3]; Adamiec, G (Adamiec, G.)[4]
2012-06-01
Source PublicationQUATERNARY GEOCHRONOLOGY
Volume9Pages:65-74
Subtype期刊论文
Abstract

The study of quartz grains (diameter 90-125 mu m) from a modern dune sand from Australia shows a lack of perfect proportionality between the regenerated OSL (L) signal and the subsequent test dose OSL (T) signal when using a single-aliquot regenerative dose (SAR) procedure with a fixed 15 Gy dose repeated five times. This lack of perfect proportionality results in both a broad D, distribution and systematic offset for the doses measured both with and without a preheat step at the end of each cycle of the SAR procedure. The problems caused by the lack of proportionality are overcome by a new method of handling the data generated by use of the SAR protocol; the OSL intensity is sensitivity-corrected using the slope of a plot of L versus T obtained from a number of aliquots, rather than the ratio of LIT obtained for individual aliquots. This approach is validated using laboratory irradiated quartz with given doses ranging from 5 Gy to 60 Gy; for the larger doses, correct values can be recovered using the new data analysis procedure is applied, but not when using the ratio of LIT obtained using conventional SAR analysis.

KeywordCoarse Quartz Osl Sar Underestimation Data Analysis
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10116
Collection现代环境研究室
Corresponding AuthorWang, XL (Wang, X. L.)[1]
Affiliation1.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’An 710075, PR China;
2.Institute of Geography and Earth Sciences, Aberystwyth University, Aberystwyth SY23 3DB, UK;
3.McDonald Institute for Archaeological Research, University of Cambridge, Downing Street, Cambridge CB2 3ER, UK;
4.Institute of Physics, Silesian University of Technology, ul. Krzywoustego 2, 44-100 Gliwice, Poland
Recommended Citation
GB/T 7714
Wang, XL ,Wintle, AG ,Adamiec, G . Improving the reliability of single-aliquot regenerative dose dating using a new method of data analysis[J]. QUATERNARY GEOCHRONOLOGY,2012,9:65-74.
APA Wang, XL ,Wintle, AG ,&Adamiec, G .(2012).Improving the reliability of single-aliquot regenerative dose dating using a new method of data analysis.QUATERNARY GEOCHRONOLOGY,9,65-74.
MLA Wang, XL ,et al."Improving the reliability of single-aliquot regenerative dose dating using a new method of data analysis".QUATERNARY GEOCHRONOLOGY 9(2012):65-74.
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