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Type: Journal article
Title: Luminescence properties of common glasses for application to retrospective dosimetry
Author: Moffatt, J.
Spooner, N.
Creighton, D.
Smith, B.
Citation: Radiation Measurements, 2012; 47(9):851-856
Publisher: Pergamon-Elsevier Science Ltd
Issue Date: 2012
ISSN: 1350-4487
Statement of
J.E. Moffatt, N.A. Spooner, D.F. Creighton and B.W. Smith
Abstract: Seventeen domestic and scientific glass specimens were investigated for thermoluminescence (TL) properties suitable for application to retrospective population dosimetry. Usefulness for retrospective dosimetry was initially judged by the presence of well-defined TL glow peaks and the absence of irradiation-independent luminescence. Of particular interest were TL glow peaks having relatively low trap depths, to prevent significant natural dose accumulation. Minimum useful trap lifetimes would be in the order of weeks. Surveys were undertaken to observe the TL and optically stimulated luminescence (OSL) behaviour of each sample. Most samples showed identifiable TL, with Pyrex in particular, and samples from a jar, a lampshade, and opaque blue beads all showing well-defined TL glow peaks with sensitivities that were not significantly affected by prior irradiation and heating of the sample. Kinetic analysis of these samples showed that their TL emission originates from traps with suitable stability for retrospective dosimetry. It is concluded that, while some glass samples show promising results, the inherent variability of an amorphous substance such as glass means that the suitability of each sample must be determined on a case-by-case basis. © 2012 Elsevier Ltd. All rights reserved.
Rights: © 2012 Elsevier Ltd. All rights reserved.
DOI: 10.1016/j.radmeas.2012.03.020
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