Optical and physical behaviours of newly developed germanium-tellurium (GeTe) glasses: a comprehensive experimental and in-silico study with commercial glasses and ordinary shields

Kassab, L.R.P.; Mattos, Guilherme Rodrigues da Silva; Issa, Shams A.M.; Bilal, Ghaida; Bordon, C.D.S.; Kılıç, Gökhan; Zakaly, Hesham M.H.; Tekın, H.O.

doi:10.1007/s10854-021-06780-y

Cited by 15 publications

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References 37 publications

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“…In this equation, for the ith and jth elements, f i and f j are the respective fractional abundances according to the number of atoms, Z i and Z j denote the respective atomic numbers, and A i and A j are the respective weights [26,27].…”

Section: Fundamental Shielding Parametersmentioning

confidence: 99%

Enhancement of Gamma-ray Shielding Properties in Cobalt-Doped Heavy Metal Borate Glasses: The Role of Lanthanum Oxide Reinforcement

et al. 2021

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The direct influence of La3+ ions on the gamma-ray shielding properties of cobalt-doped heavy metal borate glasses with the chemical formula 0.3CoO-(80-x)B2O3-19.7PbO-xLa2O3: x = 0, 0.5, 1, 1.5, and 2 mol% was examined herein. Several significant radiation shielding parameters were evaluated. The glass density was increased from 3.11 to 3.36 g/cm3 with increasing La3+ ion content from 0 to 2 mol%. The S5 glass sample, which contained the highest concentration of La3+ ions (2 mol%), had the maximum linear (μ) and mass (μm) attenuation coefficients for all photon energies entering, while the S1 glass sample free of La3+ ions possessed the minimum values of μ and μm. Both the half value layer (T1/2) and tenth value layer (TVL) of all investigated glasses showed a similar trend of (T1/2, TVL)S1 > (T1/2, TVL)S2 > (T1/2, TVL)S3 > (T1/2, TVL)S4 > (T1/2, TVL)S5. Our results revealed that the S5 sample had the highest effective atomic number (Zeff) values over the whole range of gamma-ray energy. S5 had the lowest exposure (EBF) and energy absorption (EABF) build-up factor values across the whole photon energy and penetration depth range. Our findings give a strong indication of the S5 sample’s superior gamma-ray shielding characteristics due to the highest contribution of lanthanum oxide.

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Section: Fundamental Shielding Parametersmentioning

confidence: 99%