Radiation shielding performances of Na2SiO3 based low-cost micro and nano composites for diagnostic imaging


Bozkurt M., ŞAHİN N., KARABUL Y., KILIÇ M., Özdemir Z.

Progress in Nuclear Energy, vol.143, 2022 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 143
  • Publication Date: 2022
  • Doi Number: 10.1016/j.pnucene.2021.104058
  • Journal Name: Progress in Nuclear Energy
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, Environment Index, INSPEC, Pollution Abstracts, Civil Engineering Abstracts
  • Keywords: Radiation shielding, Sodium metasilicate, Bismuth oxide, Nanocomposites, Mass attenuation coefficient, WinXCom, BI2O3 MICRO, ATTENUATION, PARTICLES, WO3, ABSORPTION, ENERGY, LEAD

Abstract

© 2021The present study deals with determining the gamma-ray shielding parameters of the micro (μ)- Bi2O3, μ−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 μ-Bi2O3, μ-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% μ-WO3 sample has a promising potential to shield the ionizing radiation utilized in diagnostic imaging such as mammography, conventional X-ray machine, etc.