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Gamma and neutron shielding properties of B4C particle reinforced Inconel 718 composites
Nuclear Engineering and Technology ( IF 2.6 ) Pub Date : 2021-09-27 , DOI: 10.1016/j.net.2021.09.028
Uğur Gökmen 1
Affiliation  

Neutron and gamma-ray shielding properties of Inconel 718 reinforced B4C (0-25 wt%) were investigated using PSD software. Mean free path (MFP), linear and mass attenuation coefficients (LAC,MAC), tenth-value and half-value layers (TVL,HVL), effective atomic number (Zeff), exposure buildup factors (EBF), and fast neutron removal cross-sections (FNRC) values were calculated for 0.015–15 MeV. It was found that MAC and LAC increased with the decrease in the content of B4C compound by weight in Inconel 718. The EBFs were computed using G-P fitting method for 0.015–15 MeV up to the penetration depth of 40 mfp. HVL, TVL, and FNRC values were found to range between 0.018 cm and 3.6 cm, between 2.46 cm and 12.087 cm, and between 0.159 cm−1 and 0.194 cm−1, respectively. While Inconel 718 provides the maximum photon shielding property since it offered the highest values of MAC and Zeff and the lowest value of HVL, Inconel 718 with B4C(25 wt%) was observed to provide the best shielding material for neutron since it offered the highest FNRC value. The study is original in terms of several aspects; moreover, the results of the study may be used in nuclear technology, as well as other technologies including nano and space technologies.



中文翻译:

B4C颗粒增强Inconel 718复合材料的伽马和中子屏蔽性能

使用 PSD 软件研究了 Inconel 718 增强型 B 4 C (0-25 wt%) 的中子和伽马射线屏蔽性能。平均自由程 (MFP)、线性和质量衰减​​系数 (LAC,MAC)、十值和半值层 (TVL,HVL)、有效原子序数 (Z eff )、曝光累积因子 (EBF) 和快中子去除横截面 (FNRC) 值计算为 0.015-15 MeV。发现 MAC 和 LAC 随着 Inconel 718 中 B 4 C 化合物重量含量的减少而增加。使用 GP 拟合方法计算 0.015-15 MeV 到 40 mfp 的穿透深度的 EBF。发现 HVL、TVL 和 FNRC 值介于 0.018 cm 和 3.6 cm 之间、2.46 cm 和 12.087 cm 之间以及 0.159 cm -1之间和0.194 cm -1,分别。Inconel 718 提供了最大的光子屏蔽性能,因为它提供了最高的 MAC 和 Z eff值以及最低的 HVL 值,但观察到具有 B 4 C(25 wt%)的 Inconel 718 为中子提供了最好的屏蔽材料,因为它提供最高的 FNRC 值。该研究在几个方面具有独创性;此外,研究结果可用于核技术以及其他技术,包括纳米和空间技术。

更新日期:2021-09-27
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