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Structural, Optical, and Gamma Shielding Performance of Arsenic-Doped Borate Glasses
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DOI：10.1016/j.net.2025.103972.png)
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Abstract
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Arsenic-doped borate glasses [xAs2O3 – (60−x)B2O3 – 20BaO – 20K2O; x = 0–10 mol%] were synthesized by melt-quenching and investigated for structural, optical, and gamma shielding properties. XRD and FTIR confirmed amorphous networks with BO3/BO4 and AsO4 units, while increasing As2O3 raised density (2.94–3.20 g/cm3) and reduced the optical band gap (3.32–1.49 eV). Gamma attenuation analysis showed improved shielding with higher As content, reflected in greater mass attenuation coefficients, effective atomic numbers, and reduced HVL and MFP. Distinct EBF peaks near arsenic and barium K-edges confirmed enhanced low-energy photon interactions. Compared with concretes, the glasses exhibited superior shielding while retaining optical transparency, demonstrating their potential as multifunctional radiation-protective materials.
Keywords:
Optical properties
Arsenic
Borate Glasses
Radiation shielding
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