Interaction of 662 keV gamma-rays with bismuth-based glass matrices
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Author list: Kaewkhao J., Kirdsiri K., Limkitjaroenporn P., Limsuwan P., Park J., Kim H.J.
Publication year: 2011
Volume number: 59
Issue number: 22
Start page: 661
End page: 665
Number of pages: 5
ISSN: 0374-4884
eISSN: 0374-4884
Languages: English-Great Britain (EN-GB)
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Abstract
In this work, the Bi2O3-SiO2 glass system was synthesized by using the melt-quenching method. The radiation shielding properties of the glass samples at various levels of bismuth content were measured at 662 keV by usage a 137Cs radioactive source, and comparisons were made with values theoretically calculated by usage WinXCom. The experimentally obtained values were generally in good agreement with the theoretical ones. Furthermore, a comparison was made to a lead-borate glass system with the same level of additive. The radiation shielding properties were found to be improved with increasing Bi2O3 concentration. The different values of Compton scattering yielded a higher total mass attenuation coefficient for the bismuth-silicate glass than for the bismuth-borate glass. These results reflect the potential usefulness of bismuth-based glasses as new materials for lead-free radiation-shielding glasses.
Keywords
Shielding
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