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Determination of Gamma Photon Absorption Characteristics of Rice Husk Ash–Doped Concrete as an Alternative Radiation Shielding Material |
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PP: 119-124 |
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doi:10.18576/jrna/110114
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Author(s) |
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Aribisala Abdul-Jamiu,
Umaru Ibrahim,
Abdullahi A. Mundi,
Idris M. Mustapha,
Atef El-Taher,
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Abstract |
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| This study investigates the gamma photon absorption characteristics of rice husk ash (RHA)–doped concrete as a sustainable alternative to conventional cement concrete used for radiation shielding applications. Concrete composites containing 0–45 wt.% rice husk ash were fabricated and analyzed. Elemental compositions were determined using energy-dispersive X-ray fluorescence (EDXRF). Radiation shielding parameters were evaluated over a photon energy range of 0.1–15 MeV using the Phy-X/PSD software based on the Lambert–Beer law. The mass attenuation coefficient, half-value layer, tenth-value layer, and mean free path were determined. Results show that mass attenuation decreases with increasing photon energy, while HVL, TVL, and MFP increase. Increasing RHA content enhances attenuation performance. The effective atomic number decreases in the low-energy region and increases at higher energies. The results indicate that RHA-doped concrete is a promising, eco-friendly radiation shielding material. |
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