Newly developed tellurium oxide glasses for nuclear shielding applications: An extended investigation
| Autor: | Evellyn Santos Magalhaes, Ozge Kilicoglu, Huseyin Ozan Tekin, Luciana R. P. Kassab, Shams A.M. Issa, Guilherme Rodrigues da Silva Mattos |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Proton Analytical chemistry 02 engineering and technology Neutron scattering 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Neutron temperature Electronic Optical and Magnetic Materials Neutron capture 0103 physical sciences Electromagnetic shielding Materials Chemistry Ceramics and Composites Stopping power (particle radiation) 0210 nano-technology Half-value layer Effective atomic number |
| Zdroj: | Journal of Non-Crystalline Solids. 528:119763 |
| ISSN: | 0022-3093 |
| Popis: | Newly developed glasses were produced using different compositions as follows (in wt.%): (85TeO2-15ZnO, 85.00TeO2-12.95ZnO-2.05Al2O3, 85.40TeO2–3.20PbO-6.97ZnO-4.43Na2O, 83.5TeO2-16.5BaO, 82.77TeO2–17.23Nb2O5, 54.6TeO2-22.6WO3-22.8Bi2O3). The acquired mass attenuation coefficients (μ/ρ) were used to determine another vital parameters for gamma-ray shielding performance namely mean free path (MFP), half value layer (HVL), tenth value layer (TVL), energy absorption buildup factor (EABF), exposure buildup factor (EBF), effective atomic number (Zeff), respectively. Simultaneously, effective removal cross section (∑R) values for fast neutrons, proton projected range (PPR), alpha projected range (APR), proton mass stopping power (PMSP), alpha mass stopping power (AMSP), neutron absorption parameters (absorption neutron scattering cross section (σabs)), SAFE factors and relative dose distribution (RDD) have been investigated for fabricated glass samples. The results showed that the 54.6TeO2-22.6WO3-22.8Bi2O3 composition has the best performance in terms of nuclear shielding purposes. It is worth recommending the continuous investigations on chemical combinations and changes of TeO2 concentration for future applications. |
| Databáze: | OpenAIRE |
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