This investigation developed a novel polyester composite based on the addition of zinc oxide (ZnO) of different sizes. We prepared nine samples Containing different percentages and sizes of ZnO as well as the control sample (Pol-ZnO0). The attenuation factors of Pol-micro ZnO were estimated using Phy-x software, while the HPGe detector and various gamma sources were used to experimentally measure the all-prepared composites. In terms of the two methods for micro composites, good agreement was observed. The linear attenuation coefficient (LAC) of Pol-ZnO20, Pol-ZnO40, and Pol-ZnO60, two more samples one with ZnO nanoparticles instead of microparticles, and the other with half microparticles and half nanoparticles (referenced as 0.5 M + 0.5 N) were determined. For all the Polyester composites and energies, the mixture of microparticles and nanoparticles had greater LAC values than each of the particles on their own. For example, the LAC values for the Pol-ZnO20 polymer at 1.330 MeV are 0.0836, 0.0888, and 0.0903 cm for the microparticles, nanoparticles, and mixture, respectively. The values of the prepared polymer samples' radiation protection efficiency (RPE) against energy with a thickness of 2 cm was determined experimentally. The Pol-ZnO60 0.5 M + 0.5 N sample has the highest RPE out of all the samples, followed by its nanoparticle counterpart, and then its microparticle counterpart. On the other hand, the Pol-ZnO0 sample, the polymer with no ZnO content, at all energies has the lowest RPE, followed by the three Pol-ZnO20 samples.

中文翻译：

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添加不同尺寸的 ZnO 合成新型聚酯复合材料以研究其屏蔽效率

这项研究开发了一种基于添加不同尺寸的氧化锌（ZnO）的新型聚酯复合材料。我们制备了九个含有不同百分比和尺寸的 ZnO 的样品以及对照样品 (Pol-ZnO0)。使用Phy-x软件估算了Pol-micro ZnO的衰减因子，同时使用HPGe探测器和各种伽马源对所有制备的复合材料进行了实验测量。就微复合材料的两种方法而言，观察到良好的一致性。Pol-ZnO20、Pol-ZnO40 和 Pol-ZnO60 的线性衰减系数 (LAC)，另外两个样品，一个用 ZnO 纳米粒子代替微米粒子，另一个用一半微米粒子和一半纳米粒子（参考为 0.5 M + 0.5 N）被确定。对于所有聚酯复合材料和能量，微粒和纳米颗粒的混合物比每个颗粒本身具有更大的 LAC 值。例如，Pol-ZnO20 聚合物在 1.330 MeV 下的微粒、纳米颗粒和混合物的 LAC 值分别为 0.0836、0.0888 和 0.0903 cm。通过实验测定所制备的聚合物样品对2cm厚度的能量的辐射防护效率(RPE)的值。Pol-ZnO60 0.5 M + 0.5 N 样品在所有样品中具有最高的 RPE，其次是其纳米颗粒对应物，然后是其微米颗粒对应物。另一方面，Pol-ZnO0 样品（不含 ZnO 含量的聚合物）在所有能量下的 RPE 最低，其次是三个 Pol-ZnO20 样品。