Bismuth-doped borosilicate glass system for enhanced gamma radiation shielding: Experimental investigation of attenuation properties and compositional optimization
Materials Research Bulletin, cilt.207, 2027 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 207
- Basım Tarihi: 2027
- Doi Numarası: 10.1016/j.materresbull.2026.114511
- Dergi Adı: Materials Research Bulletin
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
- Anahtar Kelimeler: Bismuth glass, Gamma attenuation, Linear attenuation coefficient, Mass attenuation coefficient, Radiation shielding
- Atatürk Üniversitesi Adresli: Evet
Özet
The increasing use of ionizing radiation in medical, industrial, and nuclear applications requires effective shielding materials that provide strong attenuation while reducing reliance on toxic heavy metals such as lead. This work examines bismuth borosilicate glasses with densities from 4.824 to 5.597 g/cm³ for gamma shielding. The LAC values reached 10.916 cm⁻¹ at 0.081 MeV for Bi48, while decreasing with increasing energy. Radiation protection efficiency showed maximum attenuation at low energies, gradually declining across the studied range. The experimental MAC values varied from 1.812 to 0.212 cm²/g depending on photon energy and composition. Comparative analysis revealed superior attenuation (0.238–0.252 cm²/g) over reported systems (0.199–0.204 cm²/g). Increasing Bi₂O₃ content enhanced shielding performance significantly. Among all compositions, Bi48 exhibited the highest attenuation capability and is identified as the optimal glass for radiation protection applications.