Optical and gamma-ray shielding features of Nd3+ doped lithium-zinc-borophosphate glasses

Algradee, Mohammed A.; Saleh, Emran Eisa; Sherbini, Tharwat M. El; El‐Mallawany, R.

doi:10.1016/j.ijleo.2021.167059

Cited by 20 publications

(10 citation statements)

References 21 publications

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“…The molar volume is found to decrease from 27.875 to 27.784 cm 3 /mol then increase to 28.06 cm 3 /mol due to the difference between ionic radii of Yb (0.985 A ˚) and other cations (Ba 1.35 A ˚, Ti 0.74 A ˚, B 0.23 A ˚) within the glass matrix. Thus, both the rigidity and compactness of the glasses diminishes as a result of the creation of more non-bridging oxygens [21]. The obtained values of the density and molar volume are presented in Table 2.…”

Section: Density and Molar Volumementioning

confidence: 97%

“…The addition of Yb 2 O 3 with ascending ratios increases the density of the glasses from 3.652 to 3.761 g/cm 3 due to the replacement of the lighter mass content B 2 O 3 , TiO 2 , and BaO by the heavier mass content Yb 2 O 3 [4]. Moreover, replacing the oxides of boron, titanium, and barium with ytterbium oxide increases the number of oxygen ions within the glass matrix, which promotes the conversion of triangular BO 3 units to tetrahedral BO 4 units, and because the density of BO 4 units is greater than that of BO 3 units, this conversion promotes an increase in the density of the glass [21,22]. The molar volume is found to decrease from 27.875 to 27.784 cm 3 /mol then increase to 28.06 cm 3 /mol due to the difference between ionic radii of Yb (0.985 A ˚) and other cations (Ba 1.35 A ˚, Ti 0.74 A ˚, B 0.23 A ˚) within the glass matrix.…”

Section: Density and Molar Volumementioning

confidence: 99%

See 1 more Smart Citation

Structural and optical properties of barium titanium borate glasses doped with ytterbium

Marzouk

Azooz

Elsaghier

et al. 2022

J Mater Sci: Mater Electron

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Barium titanium borate glasses doped with ytterbium ions were fabricated via standard melt quenching technique. The building structure of the glass matrices doped with ascendant ratios of ytterbium ions were studied using Raman and FTIR spectroscopies. The UV–Vis–NIR optical absorption spectra were investigated and used to calculate optical bandgaps, Urbach energies, refractive indices, metallization criterion, optical basicity, and dispersion parameters. The absorption and emission cross-sections and gain spectra for 2F5/2 → 2F7/2 transition of ytterbium ions were investigated. The high values of the emission cross-sections of the studied glasses make them strong candidates for laser and amplifier applications.

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Section: Density and Molar Volumementioning

confidence: 97%

Section: Density and Molar Volumementioning

confidence: 99%

Structural and optical properties of barium titanium borate glasses doped with ytterbium

Marzouk

Azooz

Elsaghier

et al. 2022

J Mater Sci: Mater Electron

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“…So, PTZNC1 glass can be said to have best shielding capacity among all the samples. The present glasses have MAC values higher than Ag2O-B2O3-TeO2 (30.503 cm 2 /g), Hematite-Serpenite (HS-21.536 cm 2 /g), Basalt-Magnetite (BM-20.575 cm 2 /g), RS 253 (7.478 cm 2 /g), Ordinary Concrete (OC-7.054 cm 2 /g) [16] and Nd2O3-Li2O-ZnO-B2O3-P2O5 (12.57 cm 2 /g) [42]. At 0.005 MeV, the maximum linear attenuation coefficients were observed.…”

Section: Gamma Attenuation Parametersmentioning

confidence: 99%

Electrical and gamma ray shielding properties of phospho-tellurite glasses doped with alkali and transition metal oxides

Pallavi,

Sankarappa,

Amarkumar

et al. 2023

J. Phys.: Conf. Ser.

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This article presents investigated results on physical, electrical and gamma radiation shielding properties of glasses of composition, (P2O5)0.25-(TeO2)0.5-x-(Na2O)0.1- (ZnO)0.15-(CoO)x (x= 0.10, 0.15, 0.20, 0.25, 030 and 0.35) were synthesized by melt quenching procedure. After confirming non-crystallinity, density was measured and found it to be decreased with increase of CoO concentration in the range 4.0370 gm/cm3 - 3.5673 gm/cm3. Molar volume, mean distance between TMIs, small polaron radius, oxygen packing density and field strength were estimated. Conductivity was measured in the temperature range 303K -663K. High temperature conductivity is found to be varied as per Mott’s (SPH) model. High temperature activation energy is found to be increased with CoO content. Low temperature conductivity variation has been analyzed using Mott’s (VRH) model. Gamma ray shielding parameters were evaluated using Phy-X/PSD software for the energy range 0.005 MeV-15 MeV. The mass and linear attenuation coefficients were found to decrease with CoO content and photon energy. Half and tenth value layers increased with increase of mole fractions of CoO. All the observed shielding parameters are superior to those reported previously for other glasses. The glass with x=0.10 is best suited for the utility of gamma shielding at low energy.

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“…The evaluation also includes an investigation of the nuclear shield properties and calculation of the fast neutrons' effective cross-section removal. Several researchers conducted experiments on the synthesis of borate glasses containing bismuth, lead, and other elements, which have yielded encouraging results [6, [19][20][21][22][23][24]. However, it is essential to emphasize that a signi cant portion of this research uses theoretical simulations and computer programs to assess effectiveness in the eld of radiation protection.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and gamma-ray shielding efficiency of borosilicate glasses doped with Zinc oxide: Comparative study

Saleh,

Sayyed,

Kumar

et al. 2024

Preprint

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This study examined the suitability of several glass compositions as a gamma-ray shielding substance. The compositions tested were of varying ZnO concentrations, specifically (60-x) B2O3 − 10Na2O − 15SiO2 − 5Al2O3 - (x + 10 )ZnO (where X = 5, 10, 15 and 20 mol%). Measurements were performed at energy levels of 0.6642, 1.1776, and 1.3343 MeV radiated from Cs137 and Co60 point sources along with a scintillation detector [NaI(TL)]. We investigated the critical properties related to gamma radiation shielding, determining the effective atomic number (Zeff), electron density (Nel), half-value layer (HVL), linear attenuation (µ) and mass attenuation (µm) coefficients, and mean free path (λ). Our results show that all glass compositions provide adequate protection against gamma radiation at the specified energy levels. The values of µ went up from 0.157 to 0.214 cm− 1 (0.6642 MeV), from 0.119 to 0.160 cm− 1 (1.1776 MeV), and from 0.114 to 0.151 (1.3343 MeV). For samples B1 and B4, the observed HVL values dropped from 4.41, 5.84, and 6.12 cm to 3.21, 4.31, and 4.61 cm at 0.6642, 1.1736, and 1.3343 MeV, respectively. Among the materials tested, prepared glasses show higher shielding capacity compared to regularly used glass and concrete samples. The study highlights these glass compositions' potential as practical materials that can shield gamma radiation.

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Optical and gamma-ray shielding features of Nd3+ doped lithium-zinc-borophosphate glasses

Cited by 20 publications

References 21 publications

Structural and optical properties of barium titanium borate glasses doped with ytterbium

Structural and optical properties of barium titanium borate glasses doped with ytterbium

Electrical and gamma ray shielding properties of phospho-tellurite glasses doped with alkali and transition metal oxides

Synthesis and gamma-ray shielding efficiency of borosilicate glasses doped with Zinc oxide: Comparative study

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