Numerical deconvolution of thermoluminescence spectra

Arkadiusz Mandowski; Jozef Swiatek-Prokop

doi:10.1117/12.342990

24 March 1999 Numerical deconvolution of thermoluminescence spectra

Arkadiusz Mandowski, Jozef Swiatek-Prokop

Proceedings Volume 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications; (1999) https://doi.org/10.1117/12.342990
Event: International Conference on Solid State Crystals '98, 1998, Zakopane, Poland

Abstract

Curve fitting algorithms are widely used for the determination of trap parameters from thermoluminescence (TL) glow curves. Most of the algorithms are based on the general order kinetics (GOK) model. In this paper, we study the accuracy of GOK model in application to the analysis of TL curves. It is shown that in many cases especially characterized by high retrapping coefficients, the GOK model is not applicable giving erroneous estimation of the activation energy. To overcome the difficulty a novel fitting algorithm is suggested based on the quasi equilibrium approximation. The algorithm allows to analyze a single TL peak as well as to deconvolute complex TL curves. Using numerically generated TL spectra the preciseness and stability of the method is verified.

Citation Download Citation

Arkadiusz Mandowski and Jozef Swiatek-Prokop "Numerical deconvolution of thermoluminescence spectra", Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); https://doi.org/10.1117/12.342990

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