The assessment of the radiation attenuation properties of Mo–Sn–Cu-based ternary alloys
Journal of Alloys and Compounds, cilt.1079, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 1079
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.jallcom.2026.189949
- Dergi Adı: Journal of Alloys and Compounds
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Public Affairs Index, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
- Anahtar Kelimeler: Alloys, EDXRF, Gamma, Heavy metal, Mass attenuation coefficients, Neutron, Radiation shielding
- Atatürk Üniversitesi Adresli: Evet
Özet
This study aims to experimentally and theoretically investigate the gamma-ray and neutron attenuation properties of four different compositions belonging to the Mo–Sn–Cu based ternary alloy system, namely Mo₂₅Sn₄₀Cu₃₅, Mo₃₀Sn₄₅Cu₂₅, Mo₂₀Sn₃₅Cu₄₅, and Mo₁₅Sn₃₀Cu₅₅. Experimental measurements were carried out using an Energy Dispersive X-Ray Fluorescence (EDXRF) system equipped with a high-purity germanium (HPGe) detector, while theoretical calculations were performed using the Epixs program. Gamma-ray attenuation measurements were conducted using Ba-133 sources, as well as monoenergetic gamma-ray beams with energies of 53.16, 80.99, 276.39, 302.85, 356.01, and 383.84 keV. Based on the obtained results, the gamma shielding parameters, including the mass attenuation coefficients (MAC, μ/ρ), linear attenuation coefficients (LAC, μ), mean free paths (MFP), half value layers (HVL), effective atomic numbers (Zeff), and effective electron densities (Nel) were determined. And fast neutron shielding parameter namely effective removal cross-sections (ΣR, cm⁻¹) have been calculated. In addition, Energy absorption buildup factors (EABF) and exposure buildup factors (EBF) values of concrete samples have been calculated for photon energy 0.015–15 MeV up to 15 mfp (mean free path) penetration depths. The experimental and theoretical results show strong agreement, with relative deviations within a few percent. At low photon energies, the mass attenuation coefficients (MAC) were found to be 5.9788, 5.4523, 4.8456, and 6.526 cm²/g for Mo₂₅Sn₄₀Cu₃₅, Mo₂₀Sn₃₅Cu₄₅, Mo₁₅Sn₃₀Cu₅₅, and Mo₃₀Sn₄₅Cu₂₅, respectively. The Mo₃₀Sn₄₅Cu₂₅ alloy exhibited the lowest half value layers (HVL) 0.0127 cm and the mean free paths (MFP) 0.0183 cm, indicating superior gamma-ray shielding performance. Buildup factors were calculated in the energy range of 0.015–15 MeV up to 15 MFP, and effective atomic and electron numbers showed a decreasing trend with increasing photon energy. Fast neutron shielding analysis revealed that Mo₁₅Sn₃₀Cu₅₅ had the highest neutron removal cross-section (0.1425 cm⁻¹). Overall, Mo–Sn–Cu ternary alloys demonstrate promising potential for radiation shielding applications.