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Physical, optical and gamma radiation shielding competence of newly boro-tellurite based glasses: TeO2–B2O3–ZnO–Li2O3–Bi2O3.

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Title: Physical, optical and gamma radiation shielding competence of newly boro-tellurite based glasses: TeO2–B2O3–ZnO–Li2O3–Bi2O3.
Authors: Sayyed, M.I.1,2 (AUTHOR), Al-Hadeethi, Y.1,3 (AUTHOR) yalhadeethi@kau.edu.sa, AlShammari, Maha M.4 (AUTHOR), Ahmed, Moustafa3 (AUTHOR), Al-Heniti, Saleh H.3 (AUTHOR), Rammah, Y.S.5 (AUTHOR)
Source: Ceramics International. Jan2021, Vol. 47 Issue 1, p611-618. 8p.
Subjects: Radiation shielding, Attenuation coefficients, Mass attenuation coefficients, Polarizability (Electricity), Light transmission, Permittivity, Gamma rays, Refractive index
Abstract: Herein, a traditional melt quenching method was utilized to synthesize glasses with a nominal chemical composition (80-x)TeO 2 -xB 2 O 3 –5ZnO–5Li 2 O 3 –10Bi 2 O 3 : 30≤ x ≤ 80 mol%). The produced sample was coded as TBBZL30 to TBBZL80. X-ray diffraction (XRD) has been employed to test the amorphous nature of the synthesized samples. In the range of 200–500 nm wavelength, UV–Vis spectra for the glasses have been performed. Optical energy gaps (E g a p ) have been determined based on the absorption measurements. With the help of (E g a p ), refractive index (n), molar polarizability (αM), metallization criterion (MCri.), molar refractivity (RM), static dielectric constant (εSta.), optical dielectric constant (εOpt.), reflection loss (RL) and optical transmission (TOpt.) have been calculated. For the fabricated boro-tellurite glasses, Phy-X/PSD was used to report some shielding factors for several energies between 15 keV and 15 MeV. The maximum attenuation for all samples took place at 15 keV and the mass attenuation coefficient varied between 52.309 and 57.084 cm2/g. The linear attenuation coefficient (LAC) results demonstrated that TBBZL80 has the highest attenuation than the rest of samples which is due to high content of TeO 2 (containing 80 mol% of TeO 2) whereas TBBZL30 has the lowest attenuation. The LAC for the fabricated samples varied between 230.160 and 351.064 cm-1 at 15 keV. The minimum effective atomic number (EAN) occurred between 0.8 and 4 MeV and varied between 15.16 and 17.35 for TBBZL30 and 25.10–28.33 for TBBZL80. The addition of TeO 2 was found to enhance the EAN and improved shielding properties for the tested TBBZL glass systems. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International 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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  Data: Physical, optical and gamma radiation shielding competence of newly boro-tellurite based glasses: TeO2–B2O3–ZnO–Li2O3–Bi2O3.
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Jan2021, Vol. 47 Issue 1, p611-618. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Radiation+shielding%22">Radiation shielding</searchLink><br /><searchLink fieldCode="DE" term="%22Attenuation+coefficients%22">Attenuation coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+attenuation+coefficients%22">Mass attenuation coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Polarizability+%28Electricity%29%22">Polarizability (Electricity)</searchLink><br /><searchLink fieldCode="DE" term="%22Light+transmission%22">Light transmission</searchLink><br /><searchLink fieldCode="DE" term="%22Permittivity%22">Permittivity</searchLink><br /><searchLink fieldCode="DE" term="%22Gamma+rays%22">Gamma rays</searchLink><br /><searchLink fieldCode="DE" term="%22Refractive+index%22">Refractive index</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Herein, a traditional melt quenching method was utilized to synthesize glasses with a nominal chemical composition (80-x)TeO 2 -xB 2 O 3 –5ZnO–5Li 2 O 3 –10Bi 2 O 3 : 30≤ x ≤ 80 mol%). The produced sample was coded as TBBZL30 to TBBZL80. X-ray diffraction (XRD) has been employed to test the amorphous nature of the synthesized samples. In the range of 200–500 nm wavelength, UV–Vis spectra for the glasses have been performed. Optical energy gaps (E g a p ) have been determined based on the absorption measurements. With the help of (E g a p ), refractive index (n), molar polarizability (αM), metallization criterion (MCri.), molar refractivity (RM), static dielectric constant (εSta.), optical dielectric constant (εOpt.), reflection loss (RL) and optical transmission (TOpt.) have been calculated. For the fabricated boro-tellurite glasses, Phy-X/PSD was used to report some shielding factors for several energies between 15 keV and 15 MeV. The maximum attenuation for all samples took place at 15 keV and the mass attenuation coefficient varied between 52.309 and 57.084 cm2/g. The linear attenuation coefficient (LAC) results demonstrated that TBBZL80 has the highest attenuation than the rest of samples which is due to high content of TeO 2 (containing 80 mol% of TeO 2) whereas TBBZL30 has the lowest attenuation. The LAC for the fabricated samples varied between 230.160 and 351.064 cm-1 at 15 keV. The minimum effective atomic number (EAN) occurred between 0.8 and 4 MeV and varied between 15.16 and 17.35 for TBBZL30 and 25.10–28.33 for TBBZL80. The addition of TeO 2 was found to enhance the EAN and improved shielding properties for the tested TBBZL glass systems. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ceramics International 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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      – Type: doi
        Value: 10.1016/j.ceramint.2020.08.168
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 611
    Subjects:
      – SubjectFull: Radiation shielding
        Type: general
      – SubjectFull: Attenuation coefficients
        Type: general
      – SubjectFull: Mass attenuation coefficients
        Type: general
      – SubjectFull: Polarizability (Electricity)
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      – SubjectFull: Light transmission
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      – SubjectFull: Permittivity
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      – SubjectFull: Gamma rays
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      – SubjectFull: Refractive index
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      – TitleFull: Physical, optical and gamma radiation shielding competence of newly boro-tellurite based glasses: TeO2–B2O3–ZnO–Li2O3–Bi2O3.
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              Text: Jan2021
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