Effect of B2O3 on the Radiation Shielding Performance of Telluride Lead Glass System

Abstract

This paper studies the role of B2O3 in the radiation shielding properties of (100-x)(60TeO2-40PbO)-xB2O3 glass systems where x = 0, 1, 2, 3, 4 and 5 mol%. Through the scanning electron microscope (SEM) and X-ray diffraction (XRD) tests of the glass, the structure of the glass was studied. Physical radiation sources (57Co, 60Co, 137Cs, 133Ba, and 241Am) and WinXCOM software were used to experimentally and theoretically calculate the radiation properties of the glass, respectively. The gamma shielding ability of the glass was evaluated using its mass decay coefficient (μm), half-value layer (HVL), mean free path (MFP) and effective atomic number (Zeff). The neutron shielding ability of the glass was evaluated by calculating the fast neutron removal cross-section (RCS) value. The glass’s gamma and neutron shielding properties were compared to various ordinary concrete and other tellurite glasses. The measured mass decay coefficients agree well with the theoretical values obtained using WinXCOM software. Low HVL, MFP, and high μm, Zeff, and RCS values indicate that this series of glass materials have good shielding properties. According to the obtained results, among the glass samples doped with B2O3, the TPB-1 glass sample showed the best radiation shielding performance.

Nuclear radiation shielding performance of the new lead‐free TeO2–Bi2O3–ZnO–BaF2 glass

“…Table 1 presents the composition ratio, density, and mass fraction of the TBZBF series glass. The glass composition was varied by gradually replacing ZnO with BaF 2 , decreasing the glass density from 6.413 to 6.247 g/cm 3 for TBZBF-1 to TBZBF-9. This decrease in the glass density was because the density of ZnO (5.61 g/cm 3 ) was larger than the density of BaF 2 (4.89 g/cm 3 ).…”

“…The glass composition was varied by gradually replacing ZnO with BaF 2 , decreasing the glass density from 6.413 to 6.247 g/cm 3 for TBZBF-1 to TBZBF-9. This decrease in the glass density was because the density of ZnO (5.61 g/cm 3 ) was larger than the density of BaF 2 (4.89 g/cm 3 ). The addition of low-density substances occupied a certain volume, but the increase in total mass was relatively small due to their lighter mass.…”

Gamma-ray, fast neutron and ion shielding characteristics of low-density and high-entropy Mg–Al–Ti–V–Cr–Fe–Zr–Nb alloy systems using Phy-X/PSD and SRIM programs

“…Lead (Pb), despite being a commonly used element for radiation protection due to its high density and atomic number (Z), has limitations such as high toxicity, weak mechanical strength, and a low melting point. These factors render it inadequate for radiation protection applications on its own [9] , [10] . Furthermore, Pb shields exhibit limited absorption capability within the 40 to 88 keV energy range, referred to as the lead feeble absorption region [11] .…”

Study on Radiation Shielding Properties of New Barium-Doped Zinc Tellurite Glass

“…For optical components, the higher the refractive index, the thinner the material can become, and the smaller the volume of the entire optical system. In some special working environments, such as space operations and medical equipment requiring radiation shielding ability and small instrument volume, the advantages of high refractive index glass are apparent [ 12 , 13 , 14 , 15 , 16 , 17 ]. Zinc oxide is added to the glass composition to ensure that the glass has a good structure and thermal stability [ 18 , 19 ].…”