Hassanpour Marzieh, Hassanpour Mehdi, Faghihi Simin, Khezripour Saeedeh, Rezaie Mohammadreza, Dehghanipour Parvin, Faruque Mohammad Rashed Iqbal, Khandaker Mayeen Uddin
Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia.
Department of Engineering, Khorasgan (Isfahan) Branch, Islamic Azad University, Arghavanieh, Isfahan 8155139998, Iran.
Materials (Basel). 2022 Sep 26;15(19):6667. doi: 10.3390/ma15196667.
In this paper, graphene/h-BN metamaterial was investigated as a new neutron radiation shielding (NRS) material by Monte Carlo N-Particle X version (MCNPX) Transport Code. The graphene/h-BN metamaterial are capable of both thermal and fast neutron moderator and neutron absorber process. The constituent phases in graphene/h-BN metamaterial are chosen to be hexagonal boron nitride (h-BN) and graphene. The introduced target was irradiated by an Am-Be neutron source with an energy spectrum of 100 keV to 15 MeV in a Monte Carlo simulation input file. The resulting current transmission rate (CTR) was investigated by the MCNPX code. Due to concrete's widespread use as a radiation shielding material, the results of this design were also compared with concrete targets. The results show a significant increase in NRS compared to concrete. Therefore, metamaterial with constituent phase's graphene/h-BN can be a suitable alternative to concrete for NRS.
在本文中，通过蒙特卡罗N粒子X版本（MCNPX）传输代码，将石墨烯/h-BN超材料作为一种新型中子辐射屏蔽（NRS）材料进行了研究。石墨烯/h-BN超材料能够同时进行热中子和快中子慢化以及中子吸收过程。石墨烯/h-BN超材料中的组成相选择为六方氮化硼（h-BN）和石墨烯。在蒙特卡罗模拟输入文件中，用能量范围为100 keV至15 MeV的Am-Be中子源照射引入的靶材。通过MCNPX代码研究了所得的电流传输率（CTR）。由于混凝土作为辐射屏蔽材料的广泛应用，该设计结果也与混凝土靶材进行了比较。结果表明，与混凝土相比，NRS有显著提高。因此，具有组成相石墨烯/h-BN的超材料可以成为混凝土用于NRS的合适替代品。
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