Optical and nuclear radiation shielding properties of zinc borate glasses doped with lanthanum oxide

In this study, structure, optical and nuclear radiation shielding behaviors of (50-x)B2O3-30PbO-20ZnO-xLa2O3, (x = 0, 1.5, 3, 4.5, and 6) wt% glasses with various La2O3 concentrations were measured for their nuclear radiation shielding applications. Moreover, UV–visible absorption spectrum and the g...

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Bibliographic Details
Published in:Journal of non-crystalline solids Vol. 543; p. 120151
Main Authors: Zakaly, Hesham Mh, Abouhaswa, A.S., Issa, Shams A M, Mostafa, Mostafa Y. A, Pyshkina, Mariia, El-Mallawany, R.
Format: Journal Article
Language:English
Published: Elsevier B.V 01.09.2020
Subjects:
FLUKA
Lanthanum oxide
Lead borate glass
Optical properties
Radiation shielding
Lead borate glass
Radiation shielding
FLUKA
Optical properties
Lanthanum oxide
ISSN:0022-3093, 1873-4812
Online Access:Get full text
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Summary:In this study, structure, optical and nuclear radiation shielding behaviors of (50-x)B2O3-30PbO-20ZnO-xLa2O3, (x = 0, 1.5, 3, 4.5, and 6) wt% glasses with various La2O3 concentrations were measured for their nuclear radiation shielding applications. Moreover, UV–visible absorption spectrum and the glass optical parameters were measured. The band gaps of optical energy for direct transition decreased from 3.90 eV for BPZLa1 glass sample to 2.78 eV for BPZLa5 glass, while it decreased from 2.58 eV to 1.83 eV glass for the indirect transition. The mass attenuation coefficient (μm) was experimentally measured using the HPGe spectrometer. The experimental results of shielding parameters were compared with values obtained using the XCOM program and FLUKA simulation code. The nuclear radiation shielding properties such as μm, HVL, Zeff, EBF and EABF were calculated for all glasses with various La2O3 concentrations. The results showed that μm and Zeff increased as the La2O3 concentration increased. The BPZLa5 glass sample had the minimum HVL, EBF and EABF. The BPZLa5 sample had the largest μm, Zeff.
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2020.120151