Abstract In this study, gamma ray and neutron shielding properties of Al25Zn alloy samples prepared by induction melting technique with the composition of (75−x)Al–25Zn–xTi (x = 0, 0.01, 0.1 and 1 wt %) were investigated theoretically and experimentally. The mass attenuation coefficients (μ/ρ) of the alloys were measured experimentally with a coaxial high purity germanium (HPGe) detector at 59.54, 662, 1173 and 1332 keV photon energies. The theoretical values have been calculated in the energy ranging from 1 keV to 1 GeV using WinXcom database. Afterwards, the obtained mass attenuation coefficient values have been utilized for determination of some shielding parameters such as half value layer (HVL), mean free path (MFP), effective atomic number (Zeff) and gamma–ray kerma coefficients ( k γ ). The calculated values are in good agreement with the observed values. Furthermore, the macroscopic fast neutron removal cross-sections (ΣR, cm−1) have also been calculated. Ti1 coded alloy sample containing 1% Ti was found to have maximum radiation protection efficiency (RPE) and neutron removal cross section (ΣR, cm−1) as well as the smallest half value layer (HVL) and mean free path (MFP) values. Hence, the results of this study showed that Ti1 alloy specimen has superior gamma and neutron radiation shielding performance among the other compared alloys.

中文翻译：

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钛(Ti)添加剂对Al25Zn合金辐射屏蔽效率的影响

摘要 本研究从理论上研究了采用感应熔炼技术制备的成分为 (75-x)Al-25Zn-xTi (x = 0, 0.01, 0.1 和 1 wt%) 的 Al25Zn 合金样品的伽马射线和中子屏蔽性能。和实验。使用同轴高纯锗 (HPGe) 探测器在 59.54、662、1173 和 1332 keV 光子能量下通过实验测量合金的质量衰减系数 (μ/ρ)。理论值已使用 WinXcom 数据库在 1 keV 至 1 GeV 的能量范围内计算。之后，获得的质量衰减系数值已用于确定一些屏蔽参数，如半值层 (HVL)、平均自由程 (MFP)、有效原子序数 (Zeff) 和伽马射线比释动能系数 (k γ )。计算值与观测值非常吻合。此外，还计算了宏观快速中子去除截面（ΣR，cm-1）。发现含有 1% Ti 的 Ti1 编码合金样品具有最大的辐射防护效率 (RPE) 和中子去除截面 (ΣR, cm-1) 以及最小的半值层 (HVL) 和平均自由程 (MFP) 值. 因此，本研究的结果表明，Ti1 合金试样在其他比较合金中具有优越的伽马和中子辐射屏蔽性能。cm-1) 以及最小半值层 (HVL) 和平均自由程 (MFP) 值。因此，本研究的结果表明，Ti1 合金试样在其他比较合金中具有优越的伽马和中子辐射屏蔽性能。cm-1) 以及最小半值层 (HVL) 和平均自由程 (MFP) 值。因此，本研究的结果表明，Ti1 合金试样在其他比较合金中具有优越的伽马和中子辐射屏蔽性能。