The origin of the medium OSL component in West Australian quartz
Wang,XL[1,2]; Du,JH[1,2]; Adamiec,G[3]; Wintle,AG[4,5]
2015-03
发表期刊Journal of Luminescence
卷号159期号:2015页码:147-157
文章类型期刊论文
摘要

Optically stimulated luminescence (OSL) of a coarse-grained sedimentary quartz from West Australia was investigated. Observations of OSL and TL (thermoluminescence) were made following a series of experiments using different heating and optical bleaching conditions, and with optical stimulation at several different temperatures. Analysis of the fast and medium OSL components suggests that the medium OSL component observed after heating at 260 °C is a by-product of the production of the fast component, and both of them have as their original source the 325 °C TL trap. During fast OSL production following irradiation and preheating, some of the electrons evicted into the conduction band are re-trapped in an intermediate trap corresponding to the 170 °C TL peak; from here they are instantaneously stimulated to give rise to the medium OSL signal when the blue light stimulation is switched on, and subsequently result in the residual recuperated TL after the blue light is switched off. The kinetic properties of the medium OSL component are determined by the properties of both the 170 °C and 325 °C TL traps in contrast to the conventional interpretation of the medium component being derived from an independent source trap. Therefore, the 170 °C TL trap also plays unexpected roles in quartz OSL production with elevated stimulation temperatures (e.g. 125 °C or 130 °C, currently used for OSL dating), while the 110 °C TL trap and its influences are being avoided.

关键词Quartz Medium Osl Production Photo-transfer 170 1c Tl Trap Tosl Lm–osl
DOI10.1016/j.jlumin.2014.11.003
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9534
专题黄土与第四纪地质国家重点实验室(2010~)
作者单位1.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China;
2.Key Laboratory of Western Mineral Resources and Geological Engineering, Ministry of Education of China & Chang’an University, Xi’an 710054,Shaanxi, China;
3.Silesian University of Technology, Institute of Physics—Centre for Science and Education, ul. Konarskiego 22B, 44-100 Gliwice, Poland;
4.Institute of Geography and Earth Sciences, Aberystwyth University, Aberystwyth SY23 3DB, UK;
5.McDonald Institute for Archaeological Research, University of Cambridge, Downing Street, Cambridge CB2 3ER, UK
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Wang,XL[1,2],Du,JH[1,2],Adamiec,G[3],et al. The origin of the medium OSL component in West Australian quartz[J]. Journal of Luminescence,2015,159(2015):147-157.
APA Wang,XL[1,2],Du,JH[1,2],Adamiec,G[3],&Wintle,AG[4,5].(2015).The origin of the medium OSL component in West Australian quartz.Journal of Luminescence,159(2015),147-157.
MLA Wang,XL[1,2],et al."The origin of the medium OSL component in West Australian quartz".Journal of Luminescence 159.2015(2015):147-157.
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