Effect of BaO on optical, physical and radiation shielding properties of SiO2-B2O3-Al2O3-CaO- Na2O glasses system
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Publication Details
Author list: Kaewjaeng S., Kaewkhao J., Limsuwan P., Maghanemi U.
Publisher: Elsevier
Publication year: 2012
Volume number: 32
Start page: 1080
End page: 1086
Number of pages: 7
ISSN: 1877-7058
Languages: English-Great Britain (EN-GB)
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Abstract
In this work, the effect of BaO on optical, physical and radiation shielding properties of SiO2-15B2O3-2Al 2O3- 10CaO-23Na2O glasses have been investigated. Glasses in composition (50-x)SiO2:15B2O 3:2Al2O3:10CaO:23Na2O: xBaO, where x = 0, 5, 10, 15 and 20 % mol were fabricated by melt-quenching technique. The results found that, the density and molar volume of glasses were increased with increasing of BaO concentration. The optical spectra were measured by uv-visible spectrophotometer and show shifted to longer wavelength. Gamma-ray shielding properties at 662 keV of SiO2-B2O-2Al2O 3-10CaO-23Na2O-BaO glasses have been studied. The experimental results showed good agreement with the theoretical values, calculated by WinXCom. Moreover, the comparison of ordinary concrete and commercial window in term of half value layer has been investigated and show better radiation shielding properties with advantage of being transparent to visible light. From the theoretical calculation, the Compton scattering gives dominant contribution to the total mass attenuation coefficients for all studied glass samples. ฉ 2010 Published by Elsevier Ltd.
Keywords
Barium, Optical spectra, Shielding property
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