Characterization of thermoluminescence kinetic parameters of beta irradiated B doped Ca

Autor: T, Depci, M, Oglakci, S, Sezer, A, Yücel, T, Dogan, G, Souadi, M, Topaksu, N, Can
Rok vydání: 2021
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 173
ISSN: 1872-9800
Popis: In this study, we have synthesized B doped Ca5(PO4)3OH (HAP) by a sonication chemical method. The thermoluminescence (TL) properties of the family of synthesized samples (B doped Ca5(PO4)3OH (HAP) were investigated using an IRSL-TL 565 nm filter. This gave the highest TL intensity of each phosphor after 2 Gy β-irradiation. Three TL glow peaks of B doped Ca5(PO4)3OH (HAP) are centered at around 84, 208 and 324 °C (with a heating rate of 2 °Cs-1). The trapping parameters such as activation energy (E), order of kinetics (b), frequency factor (s) were calculated by using initial rise (IR), various heating rates (VHR) and computerized glow curve deconvolution (CGCD) method. The response of TL glow curves remained constant within ±5% deviation from the initial value after 9 cycles of reuse; but only at tenth cycle the deviation goes up to 6%.
Databáze: OpenAIRE