The present study describes for the first time thermoluminescence (TL) characterization of turtle shell. A fossil shell was collected from the Dongargaon area in the Chandrapur district of Maharashtra, India. TL was recorded and a comparative study of TL for the above material was performed to understand the special TL characteristics of the shell. The shell was irradiated with 60 Co γ-radiation to study its TL properties. The sample displayed two good TL peaks at 135°C and 255°C. A linear dose-response curve for the irradiated sample was produced for the dose range 0.79-28.5 kGy; this sample of turtle shell (fossil) may be useful as a high dose dosimetry phosphor in this range. This geological sample was further characterized using X-ray diffraction to confirm its phase structure and by scanning electron microscopy , Fourier transform infrared and wavelength dispersive X-ray fluorescence spectroscopy to determine morphology, vibration, and elemental composition as ppm or percentage of the sample, respectively. Kinetic parameters of the TL glow peak were calculated using three different methods.

中文翻译：

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使用辐射剂量法研究龟壳化石中的热致发光。

本研究首次描述了龟壳的热致发光（TL）表征。从印度马哈拉施特拉邦钱德拉普尔区的Dongargaon地区采集了化石壳。记录了TL，并进行了上述材料的TL比较研究，以了解壳体的特殊TL特性。用60 Coγ射线辐照该壳以研究其TL特性。该样品在135°C和255°C时显示两个良好的TL峰。在剂量范围为0.79-28.5 kGy时，产生了被辐照样品的线性剂量反应曲线。该乌龟壳（化石）样品可用作此范围内的高剂量剂量荧光粉。通过X射线衍射和扫描电子显微镜进一步鉴定了该地质样品的相结构，傅里叶变换红外和波长色散X射线荧光光谱法分别确定形态，振动和元素成分（以ppm或样品的百分比表示）。使用三种不同的方法计算了TL辉光峰的动力学参数。