Comparative shielding properties of some tellurite glasses: Part 1

• Published in: Physica. B, Condensed matter Condensed matter, 2018-06, Vol.539, p.133-140
• Main Authors: El-Mallawany, R., Sayyed, M.I.
• Format: Article
• Language: English
• Subjects: Atomic properties; Attenuation coefficients; Cerium oxides; Erbium oxide; Fast neutrons; Gamma ray; Gamma rays; Glass; Lanthanum oxides; Manganese dioxide; Mathematical analysis; Neutron; Neutrons; Niobium oxides; Properties (attributes); Shielding; Shielding properties; Tellurite glasses; Tellurium dioxide; Tungsten oxides; WinXCom
• ISSN: 0921-4526; 1873-2135
• DOI: 10.1016/j.physb.2017.05.021

This article focuses on the shielding properties among 21 tellurite glass samples in the form of TeO2-AnOm, TeO2-WO3-BnOm and TeO2-WO3-Er2O3-PbO where AnOm = La2O3, CeO2, Sm2O3, MnO2, CoO3, Nb2O5,BnOm = Er2O3, La2O3, Sm2O3 and CeO2 mol%. The mass attenuation coefficient, μ/ρ have been computed within the energy range 0.01MeV‒20MeV using WinXCom software. The obtained mass attenuation coefficients are then utilized to calculate effective atomic numbers, Zeff, half value layers, HVL and mean free path, MFP. In addition, the macroscopic effective removal cross-section for fast neutron (ΣR) values was also evaluated. In addition, variation of the shielding parameters is compared with other tellurite, borate and silicate glasses to explore the superior shielding properties of tellurite glasses from gamma rays than other glasses. •The present glasses can replace concretes as gamma-ray shielding materials.•Neutrons shielding properties of 49TeO2 –29WO3–2Er2O3-20PbO is the best.•The 21 tellurite glasses are better than some materials in terms of gamma-ray, shielding properties.