Thermoluminescence Study of Natural CaCO₃ Mineral from Konya, Türkiye: Effect of Annealing on Signal Quality

Year 2026, Volume: 9 Issue: 2, 864 - 871, 15.03.2026

Hamide Avcı

https://doi.org/10.34248/bsengineering.1867100

https://izlik.org/JA49WY97RA

Abstract

In this study, thermoluminescence analyses were performed on natural CaCO₃ mineral sample obtained from Konya region after exposure to beta irradiation. Examining the thermoluminescence curve of the un-annealed sample, it was determined that there is a maximum at 100 °C and a tail extension around 250 °C. To detect the presence of deep traps, annealing was performed at temperatures between 400-800°C. It was decided that the optimum annealing temperature was 700°C, with a duration of 60 minutes. The characteristics of dose sensitivity, linearity, and reusability were analyzed to identify the effective thermoluminescence (TL) maximum on the high-temperature side of the spectrum. The whole TL glow curve was investigated through the Tm-Tstop experiment. Tm-Tstop experiment analysis determined that the luminescence curve of the natural CaCO3 mineral sample is complex.

Keywords

Natural CaCO3 mineral , Thermoluminescence , Trap energy levels , Dose response , Annealing effect

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