Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt.
Department of Physics, Faculty of Science, Isra University, Amman, Jordan.
Sci Rep. 2023 Jun 1;13(1):8936. doi: 10.1038/s41598-023-33864-y.
Cobalt-doped titania nanocomposites were fabricated to be utilized for radiation shielding aims. The chemical composition of the composites was measured using the energy-dispersive X-ray spectrometer. Moreover, the structure of the composites was evaluated using the X-ray diffractometer, and the morphology of the fabricated composites was presented using the scanning electron microscope. Furthermore, the γ-ray shielding properties were estimated using the Monte Carlo simulation between 0.059 and 2.506 MeV. The linear attenuation coefficient of the fabricated composites decreased by factors of 93% for all samples by raising the incident γ-energy between 0.059 and 2.506 MeV. Moreover, the partial replacement of the Ti by Co slightly enhanced the linear attenuation coefficient from 0.607 to 0.630 cm when the Co increased from 0 to 3.7 wt%. The improvement in the linear attenuation coefficient causes an enhancement in other radiation shielding properties.
钴掺杂二氧化钛纳米复合材料被制备用于辐射屏蔽目的。使用能量色散 X 射线光谱仪测量复合材料的化学组成。此外，使用 X 射线衍射仪评估复合材料的结构，并使用扫描电子显微镜呈现制备的复合材料的形态。此外，使用 0.059 到 2.506 MeV 之间的蒙特卡罗模拟来估算 γ 射线屏蔽性能。当入射 γ 能量在 0.059 到 2.506 MeV 之间升高时，所有样品的复合材料的线性衰减系数都降低了 93%。此外，当 Co 从 0 增加到 3.7wt%时，Ti 的部分替代略微将线性衰减系数从 0.607 增加到 0.630 cm。线性衰减系数的提高导致其他辐射屏蔽性能的提高。
