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Tailoring the gamma-ray shielding performance of zinc-tellurite glasses via metal oxide substitution.

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Title: Tailoring the gamma-ray shielding performance of zinc-tellurite glasses via metal oxide substitution.
Authors: Angulo S．, F.1 (AUTHOR), Chacaliaza-Ricaldi, J.1,2 (AUTHOR), Lozano C．, G.1,3 (AUTHOR) glozano@usp.br, Clabel H．, J.L.2 (AUTHOR), Pimenta, A.C.S.2 (AUTHOR), Mejía, B.1 (AUTHOR), Marega Jr．, E.2 (AUTHOR), Rivera, V.A.G.1,2 (AUTHOR)
Source: Journal of Non-Crystalline Solids. Dec2025, Vol. 670, pN.PAG-N.PAG. 1p.
Subjects: Radiation protection, Metallic oxides, Zinc telluride, Optical properties, Niobium oxide, Tungsten trioxide, Titanium dioxide
Abstract: Tellurite-based glasses have emerged as promising candidates due to their favorable structural and optical properties. However, their shielding performance is susceptible to compositional variations. This research investigates the incorporation of various metal oxides, specifically GeO 2 , TiO 2 , WO 3 , and Nb 2 O 5 , to enhance the shielding properties of zinc-tellurite glasses. The work aimed to elucidate the relationship between the structural features of the glasses and their functional properties, specifically optical behavior and gamma-ray attenuation performance. Such performance was evaluated computationally over a broad energy range (0.015–15 MeV) using the Geant4 toolkit and validated against XCOM data. Raman spectroscopy showed that GeO 2 promoted a more polymerized network, while Nb 2 O 5 , WO 3 , and TiO 2 increased non-bridging oxygen content, inversely affecting the optical bandgap. WO 3 -modified glass exhibited the highest density and superior shielding performance, evidenced by the highest mass attenuation coefficients and effective atomic numbers across the entire energy spectrum, alongside the lowest half-value layers and mean free paths. These findings highlight metal oxide selection as a key strategy for tailoring zinc-tellurite glasses, not only to surpass the shielding performance of conventional concrete but also to enable the design of advanced, lead-free, and transparent materials for next-generation radiation shielding and photonic devices. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Non-Crystalline Solids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 189182135
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  Data: Tailoring the gamma-ray shielding performance of zinc-tellurite glasses via metal oxide substitution.
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  Data: <searchLink fieldCode="AR" term="%22Angulo+S．%2C+F%2E%22">Angulo S．, F.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chacaliaza-Ricaldi%2C+J%2E%22">Chacaliaza-Ricaldi, J.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lozano+C．%2C+G%2E%22">Lozano C．, G.</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> glozano@usp.br</i><br /><searchLink fieldCode="AR" term="%22Clabel+H．%2C+J%2EL%2E%22">Clabel H．, J.L.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pimenta%2C+A%2EC%2ES%2E%22">Pimenta, A.C.S.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mejía%2C+B%2E%22">Mejía, B.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Marega+Jr．%2C+E%2E%22">Marega Jr．, E.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rivera%2C+V%2EA%2EG%2E%22">Rivera, V.A.G.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Non-Crystalline+Solids%22">Journal of Non-Crystalline Solids</searchLink>. Dec2025, Vol. 670, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Radiation+protection%22">Radiation protection</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+oxides%22">Metallic oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Zinc+telluride%22">Zinc telluride</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+properties%22">Optical properties</searchLink><br /><searchLink fieldCode="DE" term="%22Niobium+oxide%22">Niobium oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Tungsten+trioxide%22">Tungsten trioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+dioxide%22">Titanium dioxide</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Tellurite-based glasses have emerged as promising candidates due to their favorable structural and optical properties. However, their shielding performance is susceptible to compositional variations. This research investigates the incorporation of various metal oxides, specifically GeO 2 , TiO 2 , WO 3 , and Nb 2 O 5 , to enhance the shielding properties of zinc-tellurite glasses. The work aimed to elucidate the relationship between the structural features of the glasses and their functional properties, specifically optical behavior and gamma-ray attenuation performance. Such performance was evaluated computationally over a broad energy range (0.015–15 MeV) using the Geant4 toolkit and validated against XCOM data. Raman spectroscopy showed that GeO 2 promoted a more polymerized network, while Nb 2 O 5 , WO 3 , and TiO 2 increased non-bridging oxygen content, inversely affecting the optical bandgap. WO 3 -modified glass exhibited the highest density and superior shielding performance, evidenced by the highest mass attenuation coefficients and effective atomic numbers across the entire energy spectrum, alongside the lowest half-value layers and mean free paths. These findings highlight metal oxide selection as a key strategy for tailoring zinc-tellurite glasses, not only to surpass the shielding performance of conventional concrete but also to enable the design of advanced, lead-free, and transparent materials for next-generation radiation shielding and photonic devices. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Non-Crystalline Solids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
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      – Type: doi
        Value: 10.1016/j.jnoncrysol.2025.123835
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Radiation protection
        Type: general
      – SubjectFull: Metallic oxides
        Type: general
      – SubjectFull: Zinc telluride
        Type: general
      – SubjectFull: Optical properties
        Type: general
      – SubjectFull: Niobium oxide
        Type: general
      – SubjectFull: Tungsten trioxide
        Type: general
      – SubjectFull: Titanium dioxide
        Type: general
    Titles:
      – TitleFull: Tailoring the gamma-ray shielding performance of zinc-tellurite glasses via metal oxide substitution.
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            NameFull: Angulo S．, F.
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              Text: Dec2025
              Type: published
              Y: 2025
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