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	Effects of thermally transferred signals in the post-IR IRSL SAR protocol
	Qin, J.T. ; Zhou, L.P.
	2012
英文摘要	The recently developed post-IR IRSL SAR protocol is promising to isolate more stable IRSL signals of feldspars. However, the high temperature thermal treatments used will inevitably induce thermally transferred post-IR IRSL 295 (TT-post-IR IRSL295) signal, which would contribute to the measured post-IR IRSL295 signal of the test dose and may lead to inaccurate sensitivity correction. In this study, the effects of TT-post-IR IRSL295 signal in the post-IR IRSL295 SAR protocol are investigated using medium polyminerals from a loess section at Caoxian, northwestern Loess Plateau in China. The sensitivity changes of the IRSL 50 and the post-IR IRSL295 signals are different from natural cycle to regenerative cycles, which can be attributed to the interference of the TT-post-IR IRSL295 signal. Such difference is dependent on the test dose and the post-IR IR stimulation time. The TT-post-IR IRSL295 signal is also shown to affect the post-IR IRSL295 Do and De values and to cause overestimation of the fading rates. Our study therefore highlights the need of serious consideration on the effects of TT-post-IR IRSL signal when the post-IR IRSL SAR protocol is employed for dating. ? 2012 Elsevier Ltd. All rights reserved.; EI; 9; 710-715; 47
语种	英语
DOI标识	10.1016/j.radmeas.2011.12.011
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/461445]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Qin, J.T.,Zhou, L.P.. Effects of thermally transferred signals in the post-IR IRSL SAR protocol. 2012-01-01.

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