Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora. Apartado Postal 130, Hermosillo, Sonora, 83000, Mexico.
Departamento de Investigación en Física, Universidad de Sonora. Apartado Postal 5-088, Hermosillo, Sonora, 83190, Mexico.
Appl Radiat Isot. 2021 Feb;168:109519. doi: 10.1016/j.apradiso.2020.109519. Epub 2020 Nov 19.
In this work, the synthesis through solid state reaction and the thermoluminescence (TL) characterization of pellet shaped CaZrO samples is reported. X-ray diffraction confirms that orthorhombic CaZrO was obtained. The glow curve has two maxima located at 149 and 216 °C as well as a less intense maximum around 350 °C when a 5.0 °C/s heating rate is used after 64 Gy of beta particle exposure. A remarkably reproducibility of the TL response is observed in repeated irradiation - TL readouts cycles. The TL as a function of the dose displays linear dependence in the dose range from 0.5 to 256 Gy. The intensity of the maximum located around 216 °C remains 61% 14 days after irradiation, and then remains closely constant for longer times. The synthesized CaZrO exhibits TL properties potentially of interest for use in radiation detection and dosimetry.
本工作通过固相反应合成并对 CaZrO 块状样品进行了热释光（TL）特性研究。X 射线衍射证实得到了正交相的 CaZrO。当使用 5.0°C/s 的升温速率在 64Gyβ粒子辐照后，在 149 和 216°C 处出现两个发光峰，以及在 350°C 左右出现一个较弱的发光峰。在重复辐照-TL 读出循环中观察到 TL 响应具有很好的重现性。TL 与剂量的关系在 0.5 至 256Gy 的剂量范围内呈线性关系。在辐照后 14 天，位于 216°C 左右的最大强度保持 61%，然后在更长的时间内保持接近恒定。合成的 CaZrO 表现出的 TL 性能可能对辐射探测和剂量学有应用价值。
