Influence of Annealing Temperature on the Thermoluminescence Properties and Kinetic Parameters of Synthetic Quartz
DOI:
https://doi.org/10.62292/10.62292/njp.v34i2.2025.409Keywords:
Thermoluminescence, Synthetic Quartz, Annealing, Activation Energy, Trap DynamicsAbstract
Thermoluminescence (TL) in synthetic quartz has long been a key tool in radiation dosimetry, geological applications, and archaeological dating due to its regulated flaw patterns and repeatable luminescence qualities. However, as demonstrated by earlier research, thermal annealing can impact TL sensitivity in a way that differs significantly from more substantial, long-term glow curve alterations. Nevertheless, there hasn't been much research done on how these changes might manifest in kinetic parameters such as frequency factors and activation energy. This study investigates the effects of annealing synthetic quartz specimens that had never been annealed at temperatures of roughly 500°C and 900°C on its TL characteristics. The TL glow curves were analyzed using five complementary kinetic techniques in order to reveal any changes in the kinetic model, order, recombination rate dynamics, and trap depth. The findings indicate a significant shift in the peak position of glow markings and a systematic drop in activation energy as the annealing temperature rises. The TL process surprisingly maintained first-order dynamics. The study addresses a critical gap by linking annealing-induced defect evolution with quantifiable kinetic changes, offering a pathway toward engineering synthetic quartz with tailored TL responses for specific technological applications.
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References
Agulló-lópez, F., Catlow, C. R. A., & Townsend, P. D., 1988: Point defects in materials. Academic Press.
Chithambo, M. L., 2004: Time-resolved luminescence from annealed synthetic quartz under 525nm pulsed green light stimulation. Radiation Measurements, 38(5-6), 553-555. https://doi.org/10.1016/j.radmeas.2004.02.014
Chithambo, M. L., 2014: A method for kinetic analysis and study of thermal quenching in thermoluminescence based on use of the area under an isothermal decay-curve. Journal of Luminescence, 151, 235-243. https://doi.org/10.1016/j.jlumin.2014.02.037
Chithambo, M. L., & Niyonzima, P., 2017: Radioluminescence of annealed synthetic quartz. Radiation Measurements, 106, 35-39. https://doi.org/10.1016/j.radmeas.2017.02.005
Chithambo, M. L., Sane, P., & Tuomisto, F., 2011: Positron and luminescence lifetimes in annealed synthetic quartz. Radiation Measurements, 46(3), 310-318. https://doi.org/10.1016/j.radmeas.2010.12.003
Chithambo, M. L., Seneza, C., & Kalita, J. M., 2017: Phototransferred thermoluminescence of Al₂O₃:C: Experimental results and empirical models. Radiation Measurements, 105, 7-16. https://doi.org/10.1016/j.radmeas.2017.08.009
Galloway, R. B., 2002: Luminescence lifetimes in quartz: Dependence on annealing temperature prior to beta irradiation. Radiation Measurements, 35(1), 67-77. https://doi.org/10.1016/s1350-4487(01)-00258-x
Kitis, G., Gomez-Ros, J. M., & Tuyn, J. W. N., 1998: Thermoluminescence glow-curve deconvolution functions for first, second and general orders of kinetics. Journal of Physics D: Applied Physics,31(19), 2636-2641. https://doi.org/10.1088/0022-3727/31/19/037
Mckeever, S. W. S., 1985: Thermoluminescence of solids. Cambridge University Press. https://doi.org/10.1017/CBO9780511564994
Pagonis, V., Kitis, G., & Furetta, C., 2006: Numerical and practical exercises in thermoluminescence. Springer Science & Business Media. https://doi.org/10.1007/0-387-30090-2
Yang, X. H., & McKeever, S. W. S., 1990: Point defects and the pre-dose effect in quartz. Radiation Protection Dosimetry, 33(1-4), 27-30. https://doi.org/10.1093/oxfordjournals.rpd.a080687
