This study uses experimental, theoretical, and Monte Carlo simulation techniques to investigate the neutron and gamma-ray shielding performances of polyaniline-based composites filled with different amounts of formic acid, boron nitride, and boric acid. The radiation shielding performances of composites were evaluated at neutron energies of 0.025 eV, 1 keV, and 10 MeV, and gamma-ray energy of 662 keV. The study found that the composite material made of polyaniline and boron nitride with a higher percentage of boron has better thermal neutron shielding properties than other polyaniline composites. The research also showed that a polyaniline-boric acid composite with a thickness of 1.6 mm can reduce thermal neutrons by 64.5%. As a result, the composite containing equal amounts of polyaniline and boric acid was identified as the most promising material for shielding. The macroscopic cross-sections of neutrons and mass attenuation coefficients of gamma-rays were found to have expanded uncertainties up to 13.47% and 7.11%, respectively. The factors contributing to the uncertainty of the experimental, theoretical, and simulation results were identified, evaluated, and shown how to include uncertainty components in the uncertainty budget.

中文翻译：

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新型聚苯胺复合材料的中子和伽马射线屏蔽效能

本研究采用实验、理论和蒙特卡罗模拟技术来研究填充不同量的甲酸、氮化硼和硼酸的聚苯胺基复合材料的中子和伽马射线屏蔽性能。在中子能量为0.025 eV、1 keV和10 MeV以及伽马射线能量为662 keV下评估复合材料的辐射屏蔽性能。研究发现，硼含量较高的聚苯胺和氮化硼制成的复合材料比其他聚苯胺复合材料具有更好的热中子屏蔽性能。研究还表明，厚度为1.6毫米的聚苯胺-硼酸复合材料可减少64.5%的热中子。结果，含有等量聚苯胺和硼酸的复合材料被认为是最有前途的屏蔽材料。中子宏观截面和伽马射线质量衰减系数的不确定度分别扩大到13.47%和7.11%。识别、评估了导致实验、理论和模拟结果不确定性的因素，并展示了如何将不确定性成分纳入不确定性预算中。