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Gamma ray exposure buildup factor and shielding features for some binary alloys using MCNP-5 simulation code
Nuclear Engineering and Technology ( IF 2.6 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.net.2021.02.021
Y.S. Rammah , K.A. Mahmoud , Faras Q. Mohammed , M.I. Sayyed , O.L. Tashlykov , R. El-Mallawany

Gamma radiation shielding features for three series of binary alloys identified as (Pb–Sn), (Pb–Zn), and (Zn–Sn) have been investigated. The mass attenuation coefficients (μ/ρ) for the selected alloys were simulated using the MCNP-5 code in the energy range between 0.01 and 15 MeV. Moreover, the (μ/ρ) values were computed using WinXCOM database in the same energy range to validate the simulation results. Results reveal a good agreement between the simulated and computed values. The half value layer (HVL), mean free path (MFP), effective atomic number (Zeff) and exposure buildup factor (EBF) were evaluated for the selected binary alloys. Results showed that the PS1, PZ1, and ZS2 alloys have the best shielding parameters and better than the commercially standard and available radiation shielding materials. Therefore, the investigated alloys can be used as effective radiation shielding materials against gamma ray with energies between 0.01 and 15 MeV.



中文翻译:

使用 MCNP-5 模拟代码的一些二元合金的伽马射线暴露累积因子和屏蔽特性

已经研究了确定为 (Pb-Sn)、(Pb-Zn) 和 (Zn-Sn) 的三个系列二元合金的伽马辐射屏蔽特性。所选合金的质量衰减系数 (μ/ρ) 使用 MCNP-5 代码在 0.01 和 15 MeV 之间的能量范围内进行模拟。此外,在相同的能量范围内使用 WinXCOM 数据库计算 (μ/ρ) 值以验证模拟结果。结果显示模拟值和计算值之间具有良好的一致性。半值层(HVL)、平均自由程(MFP)、有效原子序数(Z eff) 和暴露累积因子 (EBF) 对选定的二元合金进行了评估。结果表明,PS1、PZ1 和 ZS2 合金具有最好的屏蔽参数,并且优于市售标准和可用的辐射屏蔽材料。因此,所研究的合金可用作有效的辐射屏蔽材料,抵抗能量在 0.01 至 15 MeV 之间的伽马射线。

更新日期:2021-03-01
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