Research Article

Thermoluminescence characteristics and kinetic analysis of beta irradiated Ca4LaO(BO3)3 phosphor

Volume: 42 Number: 3 September 24, 2021
EN

Thermoluminescence characteristics and kinetic analysis of beta irradiated Ca4LaO(BO3)3 phosphor

Abstract

Thermoluminescence (TL) properties of synthesized Ca4LaO(BO3)3 exposed to beta radiation were analyzed and TL kinetic parameters of activation energy E (eV), the frequency factor s (s-1), and order of kinetics b were determined in this study. TL glow curve recorded in 25–500 °C range presented two TL maxima around 70 and 200 °C and therefore, thermal cleaning was utilized for the further investigations on a single TL maximum. To investigate dosimetric characterizations of Ca4LaO(BO3)3, additive dose and various heating rates, reusability, and storage time measurements were performed. Ca4LaO(BO3)3 has a linear dose range between 10 to 100 Gy with a heating rate of 2 °C/s. An anomalous case of heating rate behavior was attained for the TL measurements carried out using variable heating rates between 0.1 and 10 °C/s which was considered through the semi-localized transition model. Reusability and storage time measurements indicated the results within the 5% standard deviation. The kinetic parameters were estimated by the initial rise (IR) and glow curve deconvolution (GCD) methods. Continuously distributed trapping levels were identified by TM–Tstop with E ranging from 1.25 to 1.45 eV. GCD identified that the glow curve expressed general order kinetics and consist of three overlapping traps.

Keywords

Thanks

The author would like to thank Assoc. Prof. Dr. Y. Z. Halefoğlu (Çukurova University) for the valuable support on the phosphor synthesis and A. Yücel (Inonu University) on the XRD analysis. The author would also appreciate Prof. Dr. M. Topaksu and Assoc. Prof. Dr. S. Akça Özalp for the valuable discussions on the TL results.

References

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Details

Primary Language

English

Subjects

Classical Physics (Other)

Journal Section

Research Article

Publication Date

September 24, 2021

Submission Date

April 28, 2021

Acceptance Date

June 28, 2021

Published in Issue

Year 2021 Volume: 42 Number: 3

APA
Portakal Uçar, Z. G. (2021). Thermoluminescence characteristics and kinetic analysis of beta irradiated Ca4LaO(BO3)3 phosphor. Cumhuriyet Science Journal, 42(3), 702-714. https://doi.org/10.17776/csj.929279

Cited By

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