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Synthesis, Characterization and Thermo luminescence Properties of Nano-Structure Gadolinium Doped Hydroxyapatite (HAP:Gd)

机译:纳米结构掺杂羟基磷灰石(HAP:GD)的合成,表征和热发光性能

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In this study, nano-structure hydroxyapatite powder, Ca_(10)(PO4)6(OH)2, doped with gadolinium in different mole percentage of 1, 2, and 10 were synthesized. The nano-powders were obtained by hydrolysis of Ca(OH)2 and DCPD(CaHPO4.2H2O) in aqueous solution and then analyzed through X-ray diffraction , scanning electron microscopy and transmission electron microscopy systems. The results show Gd has been successfully doped into the hydroxyapatite structure and nano-powders with mean crystallite sizes between 30-100 run were obtained. The samples were objected to Cobalt-60 gamma rays irradiation with doses of 25 Gy to 1000 Gy. Then, the thermoluminescence properties of gadolinium doped hydroxyapatite including dose response, reusability and fading were studied and compared with the pure hydroxyapatite. The glow curves of samples showed a main peak at around 200°C
机译:在该研究中,合成纳米结构羟基磷灰石粉末,Ca_(10)(PO4)6(OH)2,掺杂在不同摩尔百分比为1,2和10的钆百分比的钆百分比。通过在水溶液中水解Ca(OH)2和DCPD(CaHPO 4.2H 2 O),通过X射线衍射,扫描电子显微镜和透射电子显微镜系统进行纳米粉末获得。结果表明GD已成功掺杂到羟基磷灰石结构中,得到30-100次运行之间的平均微晶尺寸的纳米粉末。将样品反射到钴-60γ射线照射中,剂量为25 Gy至1000 gy。然后,研究了包括剂量反应,可重用和衰落的钆掺杂羟基磷灰石的热荧光性质,并与纯羟基磷灰石相比。样品的发光曲线显示在200°C左右的主峰

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