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Computerised glow curve deconvolution using general and mixed order kinetics.

J M Gómez Ros1, G Kitis

  • 1CIEMAT, Madrid, Spain. jm.gomezros@ciemat.es

Radiation Protection Dosimetry
|October 18, 2002
PubMed
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Accurate glow curve fitting functions are proposed for analyzing thermoluminescence (TL) materials. This method provides fast deconvolution for complex kinetics, showing negligible errors in parameter fitting.

Area of Science:

  • Solid State Physics
  • Materials Science
  • Analytical Chemistry

Background:

  • Thermoluminescence (TL) analysis is crucial for dating and dosimetry.
  • Standard kinetic models often fail to accurately describe complex TL glow peaks.
  • Accurate deconvolution of TL glow curves is essential for reliable material characterization.

Purpose of the Study:

  • To develop and validate accurate glow curve fitting functions for general and mixed-order kinetics.
  • To enable fast and reliable deconvolution of complex thermoluminescence glow peaks.
  • To improve the analysis of materials not well-described by first-order kinetics.

Main Methods:

  • Proposed novel mathematical expressions for glow curve fitting.
  • Employed peak search and non-linear minimization algorithms.

Related Experiment Videos

  • Tested accuracy using synthetic glow curves and comparing with original data.

    • Main Results:

    • Developed accurate fitting functions for general and mixed-order kinetics.
    • Achieved fast glow curve deconvolution for complex TL peaks.
    • Demonstrated negligible errors in parameter fitting for synthetic TL data.

    Conclusions:

    • The proposed fitting functions and deconvolution method are accurate and efficient.
    • This approach enhances the analysis of thermoluminescence materials with complex kinetics.
    • Provides a reliable tool for researchers in materials science and related fields.