Effect of Nd3+ions on radiation attenuation properties of PbF2-TeO2-WO3 glass system for shielding applications

Abstract

This study aims to investigate the utility of using 15PbF2-(60x)TeO2-25WO3-xNd2O3 (0.1 > x > 1.5) glasses in the nuclear shielding applications for mixed radiation fields at ener-gies ranging from 15 keV to 15 MeV. The effect of Nd3+ ions on gamma attenuation properties of the present glass system was discussed in detail. The radiation attenuation features were investigated for the present glass system by using Monte Carlo radiation transport simula-tion via Geant4 toolkit. The simulation results were theoretically approved by using Phy-X approach over the entire considered energy range. The obtained results indicate that the val-ues of Zeff and Neff were both highest in the in the r/p dominated energies due to the atomic number dependence of the cross sections of the r/p absorption processes. Moreover, FNRCS values were 0.1152, 0.1152, 0.1153, and 0.1153 cm-1 for PWTN1, PWTN2, PWTN3, and PWTN4 respectively. Finally, an extensive comparative study is also presented between the studied glass system and standard traditional shielding materials. The study suggests PWTN4 is the best photon shield amongst the studied PWTN-glasses. (c) 2021 SECV. Published by Elsevier Espa n similar to a, S.L.U. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).