Single-peak thermoluminescence models with temperature-correlated activation energy: Linear and nonlinear cases
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Updated: Oct 31, 2026

A Simple Dewar/Cryostat for Thermally Equilibrating Samples at Known Temperatures for Accurate Cryogenic Luminescence Measurements
Published on: July 19, 2016
Moschoula Longou1, George Kitis1
1Aristotle University of Thessaloniki, Physics Department, Nuclear Physics and Elementary Particles Physics Section, 54124 Thessaloniki, Greece.
Abstract:
A large proportion of the glow curves obtained from natural and synthetic thermoluminescent (TL) materials cannot be analyzed using TL peak models based on a single activation-energy value. In the present work, TL peak models are derived on the basis of a temperature-correlated activation energy (TCAE). Analytical expressions for the corresponding TL peaks, together with their conditions for the maximum, are derived. The suitability of the new analytical expressions as fitting functions in minimization programs is successfully demonstrated by accurately recovering all the parameters required to construct the TCAE line. On the other hand, conventional peak-shape, variable-heating-rate, and initial-rise methods fail to evaluate the activation energy of TCAE TL peaks and therefore require reappraisal.
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