Al-Shelkamy Samah A, El-Nagdy Mohamed S, Vega-Carrillo Hector Rene
Department of Physics, Faculty of Science, New Valley University, P.O. Box: 72511, New Valley, Egypt.
Physics Department, Faculty of Science, Helwan University, Cairo, Egypt.
Appl Radiat Isot. 2024 Dec;214:111501. doi: 10.1016/j.apradiso.2024.111501. Epub 2024 Sep 7.
Metallic alloys of different compositions are basic structures for building different types of nuclear reactors. This study evaluates the nuclear properties for three medium entropy alloys against incident neutrons and gamma radiation. The alloys had different chemical compositions prepared by powder technology and were compared with two stainless steel alloys for use in constructing different parts of nuclear power plant units. The shielding parameters were calculated: linear attenuation coefficient, half-value layer, tenth-value layer, mean free path, effective atomic number (Z), effective electronic number, and neutron removal cross-section. The Z of all investigated alloys had a range of 25.46-25.93.Sample 1 medium entropy alloy had the lowest neutron absorption feature and the greatest density (7.890 ± 0.323 g/cm) and Sample 3 medium entropy alloy had the largest neutron absorption feature. The study indicates that medium entropy alloys have potential for enhancing efficiency and safety of nuclear reactors.
不同成分的金属合金是建造不同类型核反应堆的基本结构。本研究评估了三种中熵合金对入射中子和伽马辐射的核性能。这些合金通过粉末技术制备了不同的化学成分，并与两种不锈钢合金进行比较，用于建造核电站机组的不同部件。计算了屏蔽参数：线性衰减系数、半值层、十分之一值层、平均自由程、有效原子序数（Z）、有效电子数和中子去除截面。所有研究合金的Z值范围为25.46 - 25.93。样品1中熵合金具有最低的中子吸收特性和最大的密度（7.890±0.323 g/cm），样品3中熵合金具有最大的中子吸收特性。该研究表明，中熵合金在提高核反应堆效率和安全性方面具有潜力。
