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Gamma and neutron shielding properties of B 4 C particle reinforced Inconel 718 composites
Ugur G okmen 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.3
Neutron and gamma-ray shielding properties of Inconel 718 reinforced B4C (0-25 wt%) were investigatedusing PSD software. Mean free path (MFP), linear and mass attenuation coefficients (LAC,MAC), tenthvalueand half-value layers (TVL,HVL), effective atomic number (Zeff), exposure buildup factors (EBF),and fast neutron removal cross-sections (FNRC) values were calculated for 0.015e15 MeV. It was foundthat 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 0.015e15 MeV up to the penetration depth of 40mfp. HVL, TVL, and FNRC values were found to range between 0.018 cm and 3.6 cm, between 2.46 cm and12.087 cm, and between 0.159 cm 1 and 0.194 cm 1, respectively. While Inconel 718 provides themaximum photon shielding property since it offered the highest values of MAC and Zeff and the lowestvalue of HVL, Inconel 718 with B4C(25 wt%) was observed to provide the best shielding material forneutron 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 technologiesincluding nano and space technologies
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