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钨纳米颗粒对用于辐射防护效率的硅橡胶的影响。

Impact of WO-Nanoparticles on Silicone Rubber for Radiation Protection Efficiency.

作者信息

Al-Ghamdi Hanan, Hemily Hanaa M, Saleh I H, Ghataas Z F, Abdel-Halim A A, Sayyed M I, Yasmin Sabina, Almuqrin Aljawhara H, Elsafi Mohamed

机构信息

Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.

Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria 21526, Egypt.

出版信息

Materials (Basel). 2022 Aug 18;15(16):5706. doi: 10.3390/ma15165706.

DOI:10.3390/ma15165706
PMID:36013841
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9414134/
Abstract

Silicone rubbers are a good choice for shielding materials because of having elastic and attenuating properties as well as cost-effectiveness. Thus, the aim of this study was to prepare ground-breaking silicone rubber samples by adding WO-nanoparticles and testing the performance of their radiation shielding ability against Cs-137, Co-60, and Am-241 gamma energy. Increasing the concentration of WO nanoparticles in silicone rubber (SR) led to decreasing the half-value layer (HVL) and mean free path (MFP) values determined for the samples tested. Furthermore, the values of MFP and HVL upsurged according to the enhancement of the photon energy. It is noteworthy that the prepared silicone rubber (SR) systems with 50 and 60 wt% concentrations of WO-nanoparticles displayed lower HVL than the BiO-containing silicone rubber (SR) systems. In the same way, studied silicone rubber SR-W60 represented the lowest HVL comprising iron ore containing silicone rubber.

摘要

硅橡胶因其具有弹性和衰减特性以及成本效益，是屏蔽材料的良好选择。因此，本研究的目的是通过添加WO纳米颗粒制备具有开创性的硅橡胶样品，并测试其对Cs-137、Co-60和Am-241伽马射线能量的辐射屏蔽能力。硅橡胶（SR）中WO纳米颗粒浓度的增加导致测试样品的半值层（HVL）和平均自由程（MFP）值降低。此外，MFP和HVL值随着光子能量的增加而升高。值得注意的是，WO纳米颗粒浓度为50 wt%和60 wt%的制备硅橡胶（SR）体系的HVL低于含BiO的硅橡胶（SR）体系。同样，研究的硅橡胶SR-W60代表了含铁矿石硅橡胶中最低的HVL。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f9f/9414134/204d27b46ff2/materials-15-05706-g014.jpg
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