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
收藏
页码：553 / 560
页数：8
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