Filak-Mędoń Karolina, Fornalski Krzysztof W, Bonczyk Michał, Jakubowska Alicja, Kempny Kamila, Wołoszczuk Katarzyna, Filipczak Krzysztof, Żerańska Klaudia, Zdrojek Mariusz
Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662, Warszawa, Poland.
Silesian Centre for Environmental Radioactivity, Central Mining Institute - National Research Institute (GIG-PIB), Plac Gwarków 1, 40-166, Katowice, Poland.
Sci Rep. 2024 Aug 16;14(1):18998. doi: 10.1038/s41598-024-69628-5.
Commonly used materials for protection against ionizing radiation (gamma and X-ray energy range) primarily rely on high-density materials, like lead, steel, or tungsten. However, these materials are heavy and often impractical for various applications, especially where weight is a key parameter, like in avionics or space technology. Here, we study the shielding properties of an alternative light material-a graphene-based composite with a relatively low density ~ 1 g/cm. We demonstrate that the linear attenuation coefficient is energy of radiation dependent, and it is validated by the XCOM model, showing relatively good agreement. We also show that the mass attenuation coefficient for selected radiation energies is at least comparable with other known materials, exceeding the value of 0.2 cm/g for higher energies. This study proves the usefulness of a commonly used model for predicting the attenuation of gamma and X-ray radiation for new materials. It shows a new potential candidate for shielding application.
常用的防电离辐射（伽马和X射线能量范围）材料主要依赖于高密度材料，如铅、钢或钨。然而，这些材料很重，对于各种应用来说往往不切实际，特别是在重量是关键参数的情况下，比如在航空电子设备或太空技术中。在此，我们研究了一种替代轻质材料——一种密度相对较低（约1克/立方厘米）的石墨烯基复合材料的屏蔽性能。我们证明线性衰减系数与辐射能量有关，并且通过XCOM模型得到验证，显示出相对较好的一致性。我们还表明，所选辐射能量的质量衰减系数至少与其他已知材料相当，对于较高能量超过了0.2平方厘米/克的值。这项研究证明了常用模型在预测新材料对伽马和X射线辐射衰减方面的有用性。它展示了一种用于屏蔽应用的新潜在候选材料。
