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Structural Properties and Gamma Rays Shielding of TeO2-B2O3-PbO Glass System |
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PP: 31-38 |
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doi:10.18576/jrna/060105
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Author(s) |
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M. S. Hafiz,
H.A. Othman,
N. A. Kawady,
I. Z. Hager,
M. G. El-Feky,
H. M. El-Samman,
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Abstract |
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| Glass system of composition (80-x) TeO2-20B2O3-xPbO (where x=2, 6, 10, 14 and 20 mol %) had been prepared by melt-quenching technique. Structure analysis were examined using X-ray diffraction (XRD), density, molar volume and fourier transform infrared (FTIR) spectroscopy measurements. Glass samples were irradiated by collimated gamma rays with different energies 0.662, 1.173 and 1.332 MeV emitted by 137Cs and 60Co radioactive point sources respectively. Radiation shielding factors such as mass attenuation coefficients (μ/ρ), half value layer (HVL), mean free path (mfp) and tenth value layer (TVL) have been determined experimentally using NaI(Ti) scintillation detector, and theoretically calculated using XCOM program. There was a slight variation between experimental and theoretical mass attenuation coefficient values. The shielding properties related to the structure of investigated tellurite glass samples. Noticed rising in shielding parameters values due to rise of lead oxide and boron oxide content in the tellurite glass sample structure. |
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