Test for quasi-equilibrium in thermally stimulated luminescence and conductivity

The uncertainty about the existence of quasi-equilibrium (QE) condition during the readout of thermoluminescence and thermally stimulated conductivity glow peaks in real materials causes doubts about the validity of applying the QE-based analytical expressions to analyse these glow peaks. In this pa...

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Bibliographic Details
Published inRadiation measurements Vol. 35; no. 6; pp. 595 - 602
Main Authors Sunta, C.M., Ayta, W.E.F., Chubaci, J.F.D., Watanabe, S.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.12.2002
Elsevier
Subjects
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geochronology
Isotope geochemistry. Geochronology
Quasi-equilibrium
Thermally stimulated conductivity
Thermoluminescence
Thermally stimulated conductivity
Quasi-equilibrium
Thermoluminescence
models
luminescence
tests
conductivity
materials
equilibrium
thermoluminescence
methodology
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Summary:The uncertainty about the existence of quasi-equilibrium (QE) condition during the readout of thermoluminescence and thermally stimulated conductivity glow peaks in real materials causes doubts about the validity of applying the QE-based analytical expressions to analyse these glow peaks. In this paper a simple method is given to verify the QE condition during the readout of these glow peaks in real materials. The method is based on changes in the glow peak shapes caused by changing the heating rate in non-QE cases. It is illustrated by using synthetic glow peaks derived from two different physically meaningful models.
ISSN:1350-4487
1879-0925
DOI:10.1016/S1350-4487(02)00067-7