Abstract The studies for protection from gamma radiation have gained speed in recent years. Researchers are in search of a new material without toxic effects such as lead (Pb) and its derivatives. In this study, the polymer composites having different ratios of hematite (25, 50, 75 and 100%) were prepared. To determine the gamma radiation attenuation characteristics of the prepared composites, some gamma-ray radiation attenuation parameters such as transmission factor, mass and linear attenuation coefficients, half and tenth value layers, mean free path, effective atomic number and electron density, energy absorption build-up factor and exposure build-up factor were obtained. The experimental measurements were performed using an HPGe detector and eight different radioactive sources. The photon energies emitted from these sources range from 59.5 keV to 1408.0 keV. The obtained experimental results were compared with the theoretical ones and small differences were observed among them within the limits of experimental uncertainty. It was observed that the mass attenuation coefficients of prepared composites doped with 25%, 50%, 75% and 100% hematite in the range of 59.5–1408.0 keV photon energy were changed between 0.3301–0.0551, 0.4254–0.0545, 0.4943–0.0540 and 0.5461–0.0537 cm2 g−1, respectively. It was reported that the hematite (100%) polymer composite sample is a better gamma radiation shielding material than other prepared composites.

中文翻译：

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赤铁矿掺杂聚合物复合材料的伽马射线衰减行为

摘要 近年来，伽马辐射防护研究进展迅速。研究人员正在寻找一种没有毒性作用的新材料，例如铅 (Pb) 及其衍生物。在本研究中，制备了具有不同赤铁矿比例（25、50、75 和 100%）的聚合物复合材料。为了确定制备的复合材料的伽马辐射衰减特性，一些伽马射线辐射衰减参数如透射系数、质量和线性衰减系数、半值和十值层、平均自由程、有效原子序数和电子密度、能量吸收构建获得了放大系数和曝光积累系数。实验测量是使用 HPGe 探测器和八个不同的放射源进行的。从这些源发射的光子能量范围为 59。5 keV 至 1408.0 keV。将获得的实验结果与理论结果进行比较，在实验不确定性的范围内观察到它们之间的微小差异。观察到，在 59.5-1408.0 keV 光子能量范围内，掺杂 25%、50%、75% 和 100% 赤铁矿的复合材料的质量衰减系数在 0.3301-0.0551、0.4254-0.0545 和 304-0 之间变化。分别为 0.5461–0.0537 cm2 g−1。据报道，赤铁矿 (100%) 聚合物复合材料样品是比其他制备的复合材料更好的伽马辐射屏蔽材料。观察到，在 59.5-1408.0 keV 光子能量范围内，掺杂 25%、50%、75% 和 100% 赤铁矿的复合材料的质量衰减系数在 0.3301-0.0551、0.4254-0.0495 和 304-0 之间变化。分别为 0.5461–0.0537 cm2 g−1。据报道，赤铁矿 (100%) 聚合物复合材料样品是比其他制备的复合材料更好的伽马辐射屏蔽材料。观察到，在 59.5-1408.0 keV 光子能量范围内，掺杂 25%、50%、75% 和 100% 赤铁矿的复合材料的质量衰减系数在 0.3301-0.0551、0.4254-0.0545 和 304-0 之间变化。分别为 0.5461–0.0537 cm2 g−1。据报道，赤铁矿 (100%) 聚合物复合材料样品是比其他制备的复合材料更好的伽马辐射屏蔽材料。