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Article: Futher studies on the relationship between IRSL and BLSL at relatively temperatures for potassium-feldspar from sediments

TitleFuther studies on the relationship between IRSL and BLSL at relatively temperatures for potassium-feldspar from sediments
Authors
Issue Date2015
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jlumin
Citation
Journal of Luminescence, 2015, v. 159, p. 238-245 How to Cite?
AbstractIn optical dating of potassium-feldspar, the luminescence signals can be stimulated by both infrared (IR) light and blue light (BL). To develop reliable dating methods using different stimulation light sources for feldspars, it is important to understand the sources of the traps associated with the infrared stimulated luminescence (IRSL) and blue light stimulated luminescence (BLSL) and their relationship. In this study, we explored the luminescence characteristics of IRSL and BLSL at different stimulation temperatures (from 60 °C to 200 °C) and their relationship based on five sets of experiments, i.e. post-IR BLSL, post-BL IRSL experiments, pulse annealing test, dose–response test and laboratory fading rate test. Our results suggest that the luminescence characteristics of IRSL and BLSL and their relationship are dependent on stimulation temperature. For IR stimulation at a relatively high temperature of 200 °C, at least two components of IRSL signals are involved in the process. One component of IRSL signals can be easily bleached by BL stimulation at 60 °C, while the other is relatively hard to be bleached by BL stimulation at 60 °C. The two components have different luminescence properties, such as thermal stability, dose–response and laboratory fading rate.
Persistent Identifierhttp://hdl.handle.net/10722/218717
ISSN
2015 Impact Factor: 2.693
2015 SCImago Journal Rankings: 0.813

 

DC FieldValueLanguage
dc.contributor.authorGong, Z-
dc.contributor.authorLi, B-
dc.contributor.authorLi, SH-
dc.date.accessioned2015-09-18T06:51:25Z-
dc.date.available2015-09-18T06:51:25Z-
dc.date.issued2015-
dc.identifier.citationJournal of Luminescence, 2015, v. 159, p. 238-245-
dc.identifier.issn0022-2313-
dc.identifier.urihttp://hdl.handle.net/10722/218717-
dc.description.abstractIn optical dating of potassium-feldspar, the luminescence signals can be stimulated by both infrared (IR) light and blue light (BL). To develop reliable dating methods using different stimulation light sources for feldspars, it is important to understand the sources of the traps associated with the infrared stimulated luminescence (IRSL) and blue light stimulated luminescence (BLSL) and their relationship. In this study, we explored the luminescence characteristics of IRSL and BLSL at different stimulation temperatures (from 60 °C to 200 °C) and their relationship based on five sets of experiments, i.e. post-IR BLSL, post-BL IRSL experiments, pulse annealing test, dose–response test and laboratory fading rate test. Our results suggest that the luminescence characteristics of IRSL and BLSL and their relationship are dependent on stimulation temperature. For IR stimulation at a relatively high temperature of 200 °C, at least two components of IRSL signals are involved in the process. One component of IRSL signals can be easily bleached by BL stimulation at 60 °C, while the other is relatively hard to be bleached by BL stimulation at 60 °C. The two components have different luminescence properties, such as thermal stability, dose–response and laboratory fading rate.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jlumin-
dc.relation.ispartofJournal of Luminescence-
dc.rights© 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.titleFuther studies on the relationship between IRSL and BLSL at relatively temperatures for potassium-feldspar from sediments-
dc.typeArticle-
dc.identifier.emailLi, SH: shli@hku.hk-
dc.identifier.authorityLi, B=rp00736-
dc.identifier.authorityLi, SH=rp00740-
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.jlumin.2014.11.033-
dc.identifier.hkuros250461-
dc.identifier.volume159-
dc.identifier.spage238-
dc.identifier.epage245-
dc.publisher.placeNetherlands-

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