Mass attenuation coefficients and effective atomic numbers in phosphate glass containing Bi2O3, PbO and BaO at 662 keV
Conference proceedings article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Kaewkhao J., Limsuwan P.
Publisher: Elsevier
Publication year: 2010
Volume number: 619
Issue number: #
Start page: 295
End page: 297
Number of pages: 3
ISSN: 0168-9002
eISSN: 1872-9576
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
In this work, the mass attenuation coefficients, partial interactions and the effective atomic numbers (Zeff) of Bi2O3, PbO and BaO in xRmOn:(100-x)P2O5 (where x=30≤x≤ 70 (% by weight)) glass system have been investigated on the basis of the mixture rule at 662 keV. The total and partial interactions were calculated by WinXCom software. It has been found that the total mass attenuation coefficients of glasses increase with increasing Bi2O3 and PbO concentrations, due to the increasing photoelectric absorption in glass samples. However, Compton scattering gives dominant contribution to the total mass attenuation coefficients for the studied glass samples. The Zeff increases with increase in Bi2O3, PbO and BaO concentrations. For comparison, the Zeff of PbO glasses are comparable to that of Bi2O3 glasses and Zeff of both glasses are greater than BaO glasses. These results are very useful for designing radiation shielding glass and reflecting the influence of bismuth, barium, and lead content in radiation shielding phosphate glass. Besides the mentioned usefulness of the new materials, development of lead-free radiation protecting glass also leaves non-toxic impact on our environment. Copyright © 2009 Published by Elsevier B.V. All rights reserved.
Keywords
Effective atomic number, Glass, Mass attenuation coefficients, Shielding materials
Contact Information