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.
Highlights
Human application of radiation involves all aspects of production and life, such as radiographic research, radiotherapy, academia, the food industry, and gas detectors and safety devices
This work studied the influence of B2O3 content on the structure and radiation shielding performance of (100-x)(60TeO2-40PbO)-xB2O3 glass systems
They have broad diffraction peaks around 2θ = 30◦ and 2θ = 50◦ in the diffraction patterns, respectively, without very sharp diffraction peaks, which are very typical diffraction patterns of amorphous substances. This X-ray diffraction (XRD) pattern shows that when the molar percentage of tively, without very sharp diffraction peaks, which are very typical diffraction patterns of amorphous substances
Summary
Human application of radiation involves all aspects of production and life, such as radiographic research, radiotherapy, academia, the food industry, and gas detectors and safety devices. Among the studied tellurite glasses, the PbO-doped glasses show the lowest MFP values (best shielding properties) [12]. The structural stability of pure TeO2-PbO glass is poor, which is not conducive to further processing. The glass’s density and radiation shielding ability will be significantly reduced [13,14,15]. This work studied the influence of B2O3 content on the structure and radiation shielding performance of (100-x)(60TeO2-40PbO)-xB2O3 (where x = 0, 1, 2, 3, 4 and 5 mol%) glass systems. Through scanning electron microscopy (SEM) and X-ray diffraction (XRD) studied the structure of the glass. The electronic radiation shielding characteristics are tested by measuring the effective atomic number (Zeff) of the glass involved. The neutron radiation shielding properties are discussed by theoretical calculation of the studied glass’s fast neutron removal cross-section (RCS)
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