To obtain better radiation shielding, a new polyester has been made by the combination of 40 wt% of polyester and 30 wt% of fine waste marble mixed along with PbO (30–0) wt% and Bi2O3 (0–30) wt%. A few significant shielding parameters such as linear attenuation coefficient (LAC), half-value layer (HVL), mean free path (MFP), and effective atomic number (Z eff) have been measured experimentally using an HPGe detector. Theoretical values have also been calculated using XCOM software. With the aim of validating the experimental setup, the measured shielding parameters, such as LAC and HVL, have been compared with their theoretical analogs. At 0.662 MeV energy, the prepared new polyester’s HVL and MFP exhibited that the sample PWPBi-10 composed of polyester (40 wt%), fine waste marble (30 wt%), PbO (20 wt%), and Bi2O3 (10 wt%) provides the best shielding ability among other studied polyesters herein. The MFP behavior indicates that the ratio of Bi2O3 and PbO on these new polyesters has a direct impact on their radiation-shielding properties. It is noteworthy that new polyester PWPBi-10 exposed the lowest value of MFP compared to the rest of the studied samples. In conclusion, considering all the measured shielding parameters, it can be stated that the sample PWPBi-10 has the ultimate radiation diffusion capability among the rest of the studied samples.

中文翻译：

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新开发的含有再生废大理石和氧化铋的聚酯的辐射屏蔽性能的实验研究

为了获得更好的辐射屏蔽，一种新的聚酯是由 40 wt% 的聚酯和 30 wt% 的细废大理石与 PbO (30–0) wt% 和 Bi 混合而成的2个欧3个(0–30) 重量%。一些重要的屏蔽参数，如线性衰减系数 (LAC)、半值层 (HVL)、平均自由程 (MFP) 和有效原子序数 (Z 效果) 已经使用 HPGe 探测器进行了实验测量。还使用 XCOM 软件计算了理论值。为了验证实验装置，将测得的屏蔽参数（例如 LAC 和 HVL）与其理论模拟值进行了比较。在 0.662 MeV 能量下，制备的新型聚酯的 HVL 和 MFP 显示样品 PWPBi-10 由聚酯 (40 wt%)、细废大理石 (30 wt%)、PbO (20 wt%) 和 Bi 组成2个欧3个(10 wt%) 在本文研究的其他聚酯中提供了最好的屏蔽能力。MFP 行为表明 Bi 的比例2个欧3个这些新型聚酯上的 PbO 对其辐射屏蔽性能有直接影响。值得注意的是，与其他研究样品相比，新型聚酯 PWPBi-10 暴露出最低的 MFP 值。总之，考虑到所有测量的屏蔽参数，可以说样品 PWPBi-10 在其余研究样品中具有最终的辐射扩散能力。