Structural and physical characterization study on synthesized tellurite (TeO2) and germanate (GeO2) glass shields using XRD, Raman spectroscopy, FLUKA and PHITS

Tekın, H.O.; Kassab, L.R.P.; Issa, Shams A.M.; Bordon, Camila Dias da Silva; Al-Buriahi, M.S.; Delboni, Filipe de Oliviera Pereira; Kılıç, Gökhan; Magalhães, Evellyn S.

doi:10.1016/j.optmat.2020.110533

Cited by 50 publications

(7 citation statements)

References 31 publications

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“…With further discharging the alkaline Zn/Te battery to 0.1 V, the peaks of Te disappear and two new peaks rise at 25.7° and 28.9°, which can be ascribed to the ZnTe (111) and (200) lattice planes. [ 39 ] The series of phase transition can be summarized as a two‐step conversion process: ZnTe to Te to TeO 2 (Figure 4c). Furthermore, ex situ XPS was also employed to investigate the redox process of Te NPs electrode at selected charge states (initial, 0.9, 1.0, 1.1, and 1.7 V) and discharge states (1.2, 0.6, and 0.1 V) (Figure 4d–g).…”

Section: Resultsmentioning

confidence: 99%

Conversion‐Type Nonmetal Elemental Tellurium Anode with High Utilization for Mild/Alkaline Zinc Batteries

Chen

Yang³

et al. 2021

Advanced Materials

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Section: Resultsmentioning

confidence: 99%

Conversion‐Type Nonmetal Elemental Tellurium Anode with High Utilization for Mild/Alkaline Zinc Batteries

Chen

Yang³

et al. 2021

Advanced Materials

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“…MFP is the average distance traveled by photons before colliding. We determined the MFP values of studied glass samples in terms of their attenuation behaviors as a function of the average distance of an incident photon [ 42 , 43 , 44 ]. The difference in MFP as a function of photon energy is depicted in Figure 5 for all glasses.…”

Section: Resultsmentioning

confidence: 99%

Trivalent Ions and Their Impacts on Effective Conductivity at 300 K and Radio-Protective Behaviors of Bismo-Borate Glasses: A Comparative Investigation for Al, Y, Nd, Sm, Eu

et al. 2021

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We aimed to determine the contribution of various trivalent ions like Al and rare-earths (Y, Nd, Sm, Eu) on resistance behaviors of different types of bismo-borate glasses. Accordingly, eight different bismuth borate glasses from the system: 40Bi2O3–59B2O3–1Tv2O3 (where Tv = Al, Y, Nd, Sm, and Eu) and three glasses of (40Bi2O3–60B2O3; 37.5Bi2O3–62.5B2O3; and 38Bi2O3–60B2O3–2Al2O3) compositions were extensively investigated in terms of their nuclear attenuation shielding properties, along with effective conductivity and buildup factors. The Py-MLBUF online platform was also utilized for determination of some essential parameters. Next, attenuation coefficients, along with half and tenth value layers, have been determined in the 0.015 MeV–15 MeV photon energy range. Moreover, effective atomic numbers and effective atomic weight, along with exposure and energy absorption buildup factors, were determined in the same energy range. The result showed that the type of trivalent ion has a direct effect on behaviors of bismo-borate glasses against ionizing gamma-rays. As incident photon energy increases, the effective thermal conductivity decreases rapidly, especially in the low energy range, where photoelectric effects dominate the photon–matter interaction. Sample 8 had the minimum heat conductivity at low photon energies; our findings showed that Eu-reinforced bismo-borate glass composition, namely 40Bi2O3–59B2O3–1Eu2O3, with a glass density of 6.328 g/cm3 had superior gamma-ray attenuation properties. These outcomes would be useful for the scientific community to observe the most suitable additive rareearth type and related glass composition for providing the aforementioned shielding properties, in terms of needs and utilization requirements.

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“…Tekin et al also study the tellurite glass system by evaluating the synergistic effect of Al 2 O 3 alterations in glasses and adding to the TeO 2 and GeO 2 glasses for radiation shielding applications. 67 The proton mass stopping power (Ψ P ) for synthetic glasses was determined. Ψ P values grow up to 0.1 MeV kinetic energy value.…”

Section: Details Of Radiation Shielding Study On Tellurite Glass Systemmentioning

confidence: 99%

Review—Radiation Shielding Properties of Tellurite and Silicate Glass

Juhim

Chee²,

AWANG³

et al. 2022

ECS J. Solid State Sci. Technol.

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Silicate glass is a popular radiation shielding material due to its abundance on Earth. However, due to simplicity of fabrication, tellurite-based optical glass materials became the primary glass network forming, garnering great scientific and technological relevance for their future uses. Previous studies have stated that the silicate and tellurite glass system might be employed in shielding applications, with metal oxide concentrations balanced with SiO2 and TeO2 content. The inclusion of SiO2 and TeO2 in the glass composition reduces the impact of radiation. In electron radiation, electron interaction activities with glass are more substantial in the low electron energy area. Meanwhile, the proton attenuation factors of the glass samples are smaller than the electrons. There is no discernible difference in the fast neutron effective removal cross-section (ΣR) values of the glass samples in neutron radiation. In the studies of tellurite glasses for gamma radiation shielding, the photon interaction parameters change as a function of material density. The measurements show that adding TeO2 to glass samples improved the gamma protection characteristics of the glasses. This review explains the various material compositions and presents a more in-depth analysis of radiation shielding properties in silicate and tellurite glasses.

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Structural and physical characterization study on synthesized tellurite (TeO2) and germanate (GeO2) glass shields using XRD, Raman spectroscopy, FLUKA and PHITS

Cited by 50 publications

References 31 publications

Conversion‐Type Nonmetal Elemental Tellurium Anode with High Utilization for Mild/Alkaline Zinc Batteries

Conversion‐Type Nonmetal Elemental Tellurium Anode with High Utilization for Mild/Alkaline Zinc Batteries

Trivalent Ions and Their Impacts on Effective Conductivity at 300 K and Radio-Protective Behaviors of Bismo-Borate Glasses: A Comparative Investigation for Al, Y, Nd, Sm, Eu

Review—Radiation Shielding Properties of Tellurite and Silicate Glass

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