This study investigates the radiation shielding properties of composites containing polyester resin, boron carbide and titanium oxide in varying proportions. The radiation transmittance of the produced composites was measured using radioactive sources 241Am, 137Cs, 133Ba, 60Co, and 22Na across a photon energy range of 59.5 keV–1332.5 keV. To analyze radiation permeability, experimental geometry was simulated using Monte Carlo-based computer codes Monte Carlo N-Particle (MCNP), Particle and Heavy Ion Transport code System (PHITS) and FLUktuierende KAskade or Fluctuating Cascade (FLUKA), and the experimental data were compared with simulation results and theoretical data obtained from WINXCOM. The findings demonstrated a high degree of consistency between experimental, simulation, and theoretical results. Notably, the BCTiO50 sample, which included a 50% addition of TiO2, emerged as the most effective in photon radiation shielding. In addition to gamma shielding, the neutron shielding properties of the produced composites were evaluated using the FLUKA code, revealing that the BCTiO0 sample, with the highest percentage of boron, provided the best neutron shielding. This analysis included composites with decreasing boron carbide content by 10%, 20%, 30%, 40%, and 50% by weight, each replaced with titanium oxide, showcasing the potential applications of these polymer composites in radiation shielding.

中文翻译：

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碳化硼和氧化钛复合材料增强的 γ 和中子屏蔽特性的实验、模拟和理论研究


本研究调查了含有不同比例的聚酯树脂、碳化硼和氧化钛的复合材料的辐射屏蔽性能。使用 241Am、137Cs、133Ba、60Co 和 22Na 放射源在 59.5 keV–1332.5 keV 的光子能量范围内测量所制备复合材料的辐射透射率。为了分析辐射渗透率，使用基于蒙特卡洛的计算机代码蒙特卡洛 N 粒子 （MCNP）、粒子和重离子传输代码系统 （PHITS） 和 FLUktuierende KAskade 或波动级联 （FLUKA） 对实验几何进行了模拟，并将实验数据与仿真结果和从 WINXCOM 获得的理论数据进行了比较。研究结果表明，实验、仿真和理论结果之间存在高度一致性。值得注意的是，BCTiO50 样品（添加 50% 的 TiO2）成为最有效的光子辐射屏蔽。除了伽马屏蔽外，还使用 FLUKA 代码评估了所制备复合材料的中子屏蔽性能，结果表明硼含量最高的 BCTiO0 样品提供了最好的中子屏蔽。该分析包括碳化硼含量按重量计降低 10%、20%、30%、40% 和 50% 的复合材料，每种复合材料都被氧化钛取代，展示了这些聚合物复合材料在辐射屏蔽中的潜在应用。