Fast time-resolved luminescence emission spectroscopy in some feldspars

被引：40

作者：

Clark, RJ ^{[1
]}

Bailiff, IK ^{[1
]}

机构：

[1] Univ Durham, Environm Res Ctr, Luminescence Dating Lab, Durham DH1 3LE, England

来源：

RADIATION MEASUREMENTS | 1998年 / 29卷 / 05期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.1016/S1350-4487(98)00068-7

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Measurements of fast time-resolved 850 nm stimulated luminescence (resolution 5 ns) and also CW infra-red stimulated luminescence (IRSL) emission spectroscopy have been performed with a set of six specimen feldspars comprising orthoclase, albite, sanidine and oligoclase. The IRSL was observed following the administration of ionising radiation dose. Detection of the time-resolved spectrum was defined by the use of bandpass (FWHM 40 nm) interference filters enabling low resolution emission spectroscopy to be performed between 300 and 550 nm. Multi-exponential lifetime analysis suggests the possibility of a link between luminescence emitted in the UV spectral region (similar to 300 nm) and the visible spectral region (i.e. >400 nm). The results also support a model of lattice stabilised electron vacancies for the luminescence emission rather than intrinsic transition metal ion luminescence. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：553 / 560

页数：8

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