Abstract—

The diffuse reflection spectra (in the range of 300–1000 nm) of polypropylene modified with aluminum-oxide nanoparticles in the concentration range of 1–5 wt %, its integrated absorption coefficient of solar radiation, as well as their change after electron irradiation (E = 30 keV, Φ = 2 × 10¹⁶ cm^–2) are studied. The optimal concentration of nanoparticles (2 wt %), at which the radiation resistance increases by 9.5 times, is established. The results of this study can be used for the selection of materials that work under the influence of ionizing radiation in outer space, in nuclear power plants, and in accelerator and X-ray facilities.

中文翻译：

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研究 Al2O3 纳米粒子改性聚丙烯的光学性能的辐射稳定性

摘要——

1-5wt%氧化铝纳米粒子改性聚丙烯的漫反射光谱（300-1000 nm）、太阳辐射的综合吸收系数以及电子辐照后的变化（E = 30 keV, Φ = 2 × 10 ¹⁶ cm ^–2 ) 进行了研究。确定了纳米粒子的最佳浓度 (2 wt %)，在该浓度下，抗辐射性增加了 9.5 倍。这项研究的结果可用于选择在外层空间、核电站、加速器和 X 射线设施中在电离辐射影响下工作的材料。