The study covers shielding properties of three promising lead-free XCr2Se4 alloys, where X represents Mn, Cu, or Ag, across a spectrum of energies between 0.02 MeV and 15 MeV. MCNP4C was employed to simulate the mass attenuation coefficient (MAC) for the three selected alloys. After being prepared using the conventional solid-state reaction method, the samples displayed densities ranging from 5.45 g cm−3to 6.22 g cm−3. The simulated results obtained from the MCNP4C are then benchmarked with data obtained using different software such as Phy-X, Py-MLBUF, EPIXS, and GRASP. Upon comparing the acquired results with the Phy-X data, a notable correlation was observed with a relative difference ranging from 0.11% to 8.57%. The accuracy of the simulated data was additionally validated through the Kolmogorov-Smirnov test. From the simulated MAC, different ionizing radiation shielding properties including linear attenuation coefficient (LAC), half-value layer (HVL), mean-free path (MFP), transmission factor (TF), radiation protection efficiency (RPE), and fast neutron removal cross section (FNRCS) were calculated to provide a comprehensive analysis of the samples' efficacy in dealing with different types of radiation. The LAC for neutrons at different energies is also examined. HVL analysis indicates the radiation-blocking capacity of the samples. The TF shows the alloys’ ability to either permit or restrain the transfer of radiation. Additionally, RPE and FNRCS give indication of the shielding potential of the studied samples. This study is important for nuclear physicians and researchers and serves as useful data for the development of superior shielding materials.

中文翻译：

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揭示屏蔽潜力：探索具有 MCNP 4C 代码的新型无铅 XCr2Se4 硫属化物 Spinals 合金中的光子和中子衰减


该研究涵盖了三种有前途的无铅 XCr2Se4 合金的屏蔽性能，其中 X 代表 Mn、Cu 或 Ag，能量范围在 0.02 MeV 和 15 MeV 之间。采用 MCNP4C 模拟 3 种选定合金的质量衰减系数 （MAC）。使用常规固态反应方法制备后，样品的密度范围为 5.45 g cm-3 至 6.22 g cm-3。然后将从 MCNP4C 获得的模拟结果与使用不同软件（如 Phy-X、Py-MLBUF、EPIXS 和 GRASP）获得的数据进行基准测试。将获取的结果与 Phy-X 数据进行比较，观察到显著的相关性，相对差异范围为 0.11% 至 8.57%。模拟数据的准确性还通过 Kolmogorov-Smirnov 检验进行了验证。根据模拟的 MAC，计算了不同的电离辐射屏蔽特性，包括线性衰减系数 （LAC）、半值层 （HVL）、无均值路径 （MFP）、透射因子 （TF）、辐射防护效率 （RPE） 和快速中子去除截面 （FNRCS），以全面分析样品处理不同类型辐射的功效。还检查了不同能量下中子的 LAC。HVL 分析表明样品的辐射阻挡能力。TF 显示了合金允许或抑制辐射传输的能力。此外，RPE 和 FNRCS 指示了研究样品的屏蔽电位。这项研究对核医生和研究人员很重要，可作为开发优质屏蔽材料的有用数据。