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 | |
发表期刊 | QUATERNARY GEOCHRONOLOGY |
卷号 | 9页码:65-74 |
文章类型 | 期刊论文 |
摘要 | 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. |
关键词 | Coarse Quartz Osl Sar Underestimation Data Analysis |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/10116 |
专题 | 现代环境研究室 |
通讯作者 | Wang, XL (Wang, X. L.)[1] |
作者单位 | 1.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 |
推荐引用方式 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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