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Investigating the contribution of recuperated TL to post-IR IRSL signals in a perthitic feldspar
Wang, XL (Wang, X. L.)[ 1 ]; Wintle, AG (Wintle, A. G.)[ 2,3 ]
2013-02-28
Source PublicationRADIATION MEASUREMENTS
Volume49Pages:82-87
Subtype期刊论文
Abstract

Using a museum specimen of perthitic feldspar, the characteristics of post-IR IRSL production at 200 degrees C after different prior IR bleaching at 100 degrees C were investigated. It was found that the post-IR IRSL signal had an isothermal TL contribution that was unexpected following a previous preheat at 320 degrees C; this is the result of isothermal decay of recuperated II peaks resulting from photo-transfer that occurred when the previous IRSL signal was measured at a lower temperature. The isothermal TL contribution to the post-IR IRSL signal depends on prior IR bleaching conditions. Since the recuperated TL signal comes from photo-transfer during IRSL production, this signal should also suffer from anomalous fading. Thus, it is suggested that this isothermal TL contribution to the measured post-IR IRSL is removed by the inclusion of an additional step, a cut-heat to 300 degrees C, in the post-IR IRSL dating protocol.

KeywordK-feldspar Irsl Photo-transfer Recuperated Tl Isothermal Tl Post-ir Irsl
DOI10.1016/j.radmeas.2012.12.003
Indexed BySCI ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10009
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, 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
Recommended Citation
GB/T 7714
Wang, XL ,Wintle, AG . Investigating the contribution of recuperated TL to post-IR IRSL signals in a perthitic feldspar[J]. RADIATION MEASUREMENTS,2013,49:82-87.
APA Wang, XL ,&Wintle, AG .(2013).Investigating the contribution of recuperated TL to post-IR IRSL signals in a perthitic feldspar.RADIATION MEASUREMENTS,49,82-87.
MLA Wang, XL ,et al."Investigating the contribution of recuperated TL to post-IR IRSL signals in a perthitic feldspar".RADIATION MEASUREMENTS 49(2013):82-87.
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