β 辐照蛋壳来源的 B 掺杂 Ca(PO)OH 粉末的热释光动力学参数的特征。
Characterization of thermoluminescence kinetic parameters of beta irradiated B doped Ca(PO)OH powder obtained from eggshell.
机构信息
The Graduate School of Engineering & Sciences, Iskenderun Technical University, Iskenderun, Hatay, Turkey.
Physics Department, Cukurova University, Arts-Sciences Faculty, 01330, Adana, Turkey.
出版信息
Appl Radiat Isot. 2021 Jul;173:109738. doi: 10.1016/j.apradiso.2021.109738. Epub 2021 Apr 22.
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%.
在这项研究中，我们通过超声化学法合成了掺硼的 Ca5(PO4)3OH（HAP）。使用 IRSL-TL 565nm 滤波器研究了一系列合成样品（掺硼的 Ca5(PO4)3OH（HAP）的热释光（TL）性质。在 2Gyβ辐照后，这种方法给出了每个磷光体的最高 TL 强度。掺硼的 Ca5(PO4)3OH（HAP）有三个 TL 发光峰，中心位于 84、208 和 324°C（升温速率为 2°C/s）。通过使用初始上升（IR）、各种升温速率（VHR）和计算机化发光曲线解卷积（CGCD）方法，计算了陷阱参数，如激活能（E）、动力学级数（b）和频率因子（s）。TL 发光曲线的响应在 9 次重复使用后的初始值偏差±5%内保持恒定；但只有在第十个循环时，偏差才上升到 6%。
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