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Characterization of thermoluminescence kinetic parameters of beta irradiated B doped Ca5(PO4)3OH powder obtained from eggshell
Applied Radiation and Isotopes ( IF 1.6 ) Pub Date : 2021-04-22 , DOI: 10.1016/j.apradiso.2021.109738
T. Depci , M. Oglakci , S. Sezer , A. Yücel , T. Dogan , G. Souadi , M. Topaksu , N. Can

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%.



中文翻译:

蛋壳制β辐射B掺杂Ca 5(PO 43 OH粉的热发光动力学参数表征。

在这项研究中,我们已经通过超声化学方法合成了B掺杂的Ca5(PO4)3OH(HAP)。使用IRSL-TL 565 nm滤光片研究了合成样品系列(B掺杂的Ca5(PO4)3OH(HAP))的热致发光(TL)特性,在2 Gyβ辐照后,每种荧光粉的TL强度最高。 B掺杂的Ca5(PO4)3OH(HAP)的三个TL辉光峰的中心温度分别为84、208和324°C(加热速率为2°Cs-1)。动力学顺序(b),频率因子(s)是通过使用初始上升(IR),各种加热速率(VHR)和计算机辉光曲线反褶积(CGCD)方法来计算的,TL辉光曲线的响应保持恒定在±5%以内在重复使用9个循环后与初始值之间的偏差;但仅在第十个循环时,偏差才达到6%。

更新日期:2021-04-26
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