Developing different types of radiation shielding with certain specifications according to the type of radiation and method of application is essential. In this work, the radiation shielding, optical and structural features of PVA films containing BaTiO nanoparticles are investigated. The radiation shielding properties were measured experimentally with real gamma sources (Ba, Eu, and Cs). The efficiency calibration and spectrum analysis were performed with the Spectra Line Ultimate Gamma Lab packet program. Moreover, the results were compared with the FLUKA Monte Carlo code. Before radiation attenuation measurements, the prepared films were characterized via X-ray diffraction (XRD). The structure of the BaTiO nanoparticles in the polymer matrix was studied with a scanning electron microscope (SEM, Merlin, Carl-Zeiss, LEO982). In addition, the optical properties of the polymer films were studied and presented. As the BaTiO content increases in the polymer matrix, transmission decreases and reflectance increases. Equally, as the BaTiO content increases, the value of α increases. For the shielding properties, the mass attenuation coefficient (μ) increases as the BaTiO content increases from 0.65 to 3.57 wt%. There is a strong agreement between experimental results and the values obtained from the FLUKA Monte Carlo code.

中文翻译：

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PVA-BaTiO3 纳米复合薄膜的结构、光学和辐射屏蔽性能：实验研究


根据辐射类型和使用方法，开发不同类型和一定规格的辐射屏蔽是必要的。在这项工作中，研究了含有 BaTiO 纳米颗粒的 PVA 薄膜的辐射屏蔽、光学和结构特征。辐射屏蔽性能通过真实伽马源（Ba、Eu 和 Cs）进行实验测量。使用 Spectra Line Ultimate Gamma Lab 数据包程序执行效率校准和频谱分析。此外，将结果与FLUKA蒙特卡罗代码进行了比较。在辐射衰减测量之前，通过 X 射线衍射 (XRD) 对制备的薄膜进行表征。使用扫描电子显微镜（SEM、Merlin、Carl-Zeiss、LEO982）研究了聚合物基体中 BaTiO 纳米颗粒的结构。此外，还研究并介绍了聚合物薄膜的光学性能。随着聚合物基体中 BaTiO 含量的增加，透射率降低，反射率增加。同样，随着 BaTiO 含量的增加，α 值也增加。对于屏蔽性能，随着 BaTiO 含量从 0.65 wt% 增加到 3.57 wt%，质量衰减系数 (μ) 增加。实验结果与从 FLUKA 蒙特卡罗代码获得的值之间有很强的一致性。