Journal
PROGRESS IN NUCLEAR ENERGY
Volume 143, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pnucene.2021.104058
Keywords
Radiation shielding; Sodium metasilicate; Bismuth oxide; Nanocomposites; Mass attenuation coefficient; WinXCom
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The study aimed to determine the gamma-ray shielding parameters of micro and nano-structured Bi2O3 and WO3-reinforced Na2SiO3 composites, revealing their potential to shield ionizing radiation for diagnostic imaging. Among all composites, Na2SiO3/30% mu-WO3 sample showed promising results in shielding ionizing radiation.
The present study deals with determining the gamma-ray shielding parameters of the micro (mu)- Bi2O3, mu- WO3, nano (n)-Bi2O3, and n-WO3 reinforced Na2SiO3 (sodium metasilicate) composites experimentally and theoretically. The study has aimed to compare the size of reinforcing particles on the gamma-ray shielding ability of very low-cost and non-toxic Na2SiO3. In this context, the gamma-ray shielding performances of the samples containing different weight percentages of mu-Bi2O3, mu-WO3, n-Bi2O3, and n-WO3 particles have been evaluated by employing mass attenuation coefficient, half-value layer, and mean free path. The related parameters have been measured experimentally and also calculated by WinXCom. It has been revealed that Na2SiO3 composites having micro and nano-structured Bi2O3 and WO3 particles show good radiation shielding for 81 keV photons. In this respect, among all composites, the Na2SiO3/30% mu-WO3 sample has a promising potential to shield the ionizing radiation utilized in diagnostic imaging such as mammography, conventional X-ray machine, etc.
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