Gamma-ray, fast neutron and ion shielding characteristics of low-density and high-entropy Mg-Al-Ti-V-Cr-Fe-Zr-Nb alloy systems using Phy-X/PSD and SRIM programs.

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ID: 278686
2023
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Abstract
This study aimed to assess the radiation shielding properties of ten low-density high-entropy alloys (LWHEAs) using Phy-X/PSD software to analyze various shielding parameters, such as attenuation coefficients ( and ), mean free path (), effective atomic number (), and removal cross-section (), in the energy range of Image 1 to Image 2. A comprehensive evaluation was performed to compare the attenuation outcomes provided by HEAs with a range of shielding materials documented in the literature. The study also calculated the build-up factors (BUFs) of the alloys by using the GP-fitting interpolation method. The stopping power of the alloys against ions was analyzed using the SRIM Monte Carlo code, considering total stopping power (TSP) and projected range (PR). The results indicated that HEA8 () had the best performance in terms of shielding against -rays, fast neutrons, and ions, as it achieved the highest values of parameters such as , , , and , along with the lowest values of HVL, TVL, , BUFs (Image 3 Image 4), TSP, and PR. On the other hand, HEA10 () had the lowest BUFs in both lower (Image 5 Image 4) and higher (Image 6 Image 4) energy regions. The order of for the alloys was found to be . The study concluded that LWHEAs possess superior radiation shielding properties compared to conventional materials, making them a promising new class of materials for radiation shielding applications.
Reference Key
subedi2023gammarayheliyon Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Subedi, Basanta;Paudel, Jeevan;Lamichhane, Tika Ram;
Journal Heliyon
Year 2023
DOI
e17725
URL
Keywords
absorption coefficients phy-x/psd build-up factors (bufs) high-entropy alloys (heas) removal cross-section () srim stopping power (tsp)

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