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Type: Journal article
Title: Extended duration optically stimulated luminescence in quartz
Author: Williams, O.
Spooner, N.
Smith, B.
Moffatt, J.
Citation: Radiation Measurements, 2018; 119:42-51
Publisher: Elsevier
Issue Date: 2018
ISSN: 1350-4487
Statement of
Owen M. Williams, Nigel A. Spooner, Barnarby W. Smith, Jillian E. Moffatt
Abstract: As part of an investigation into the mechanisms underlying optically stimulated luminescence (OSL) in quartz, we have shone a number of South Australian natural quartzes over a six day measurement period. During this time the OSL signal was recorded over ten decades in time and fell six to seven decades in luminescent intensity. In particular, we observe the presence of a number of steps that appear when the luminescence is displayed in log/log form. In exploring the underlying mechanism, we review both the standard energy band gap model for quartz OSL and the alternative defect pair model and find that the latter can be applied to explain the steps in terms of a nearest neighbour extension.
Rights: © 2018 Elsevier Ltd. All rights reserved.
RMID: 0030098500
DOI: 10.1016/j.radmeas.2018.09.005
Appears in Collections:Physics publications
IPAS publications

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