Borate multicomponent of bismuth rich glasses for gamma radiation shielding application. (August 2019)

• Record Type: Journal Article
• Authors: Sayyed, M.I.; Kaky, Kawa M.; Mhareb, M.H.A.; Abdalsalam, Alyaa H.; Almousa, Nouf; Shkoukani, Ghada; Bourham, Mohamed A.
• Is Part Of: Radiation physics and chemistry. Volume 161(2019:Aug.)
• Page Start: 77
• Page End: 82
• Publication Date: 2019-08
• Subjects: Borate glasses -- Optical band gap -- MicroShield -- Attenuation -- Gamma photon -- Shielding; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2019.04.005
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: In this work, six borate-bismuth glasses have been synthesized using a conventional melt-quenching-aneling process with a composition of (80-x)B2 O3 10ZnO10MgO-xBi2 O3 where x = 10, 20, 30, 40, 50 and 60 mol%. The glasses were melted at 975 °C for 30 min and annealed at 300 °C for 5 h. Different physical properties of these glasses have been measured and estimated. X-ray diffraction has been utilized to investigate the structural nature of these glasses. Optical absorption and transmittance spectra have been measured for all samples in the range of 300–800 nm at room temperature. The cutoff wavelength of all glass samples was determined. In addition, the radiation shielding characterization for the glass samples was done by calculating the linear and mass attenuation coefficients, mean free path, and half value layer of the photon energy ranges between 0.015 and 15 MeV using MicroShield. It was found that the glass with the highest Bi2 O3 content showed the best performance in attenuating gamma radiation by exhibiting the highest linear attenuation coefficient and both lowest mean free path and half value layer due to its high density of 7.107 g/cm 3 . Highlights: B2 O3 ZnOMgOBi2 O3 glasses were prepared by conventional melt-quenching method. Optical absorption has been measured for all samples in the range of 300–800 nm. The radiation shielding parameters were reported using MicroShield. Bi60 sample showed the best performance in attenuating gamma radiation.