Dy3+ doped SiO2–B2O3–Al2O3–NaF–ZnF2 glasses: An exploration of optical and gamma radiation shielding features

Monisha, M.; D’Souza, Ashwitha Nancy; Hegde, Vinod; Prabhu, Nimitha S.; Sayyed, M.I.; Lakshminarayana, G.; Kamath, Sudha D.

doi:10.1016/j.cap.2020.08.004

Cited by 32 publications

(6 citation statements)

References 41 publications

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“…Above 1 MeV, gradually reduction in the Z eq values was observed. These values become almost constant in the high-energy region (5)(6)(7)(8)(9)(10). This variation is due to the atomic number (Z) dependency of cross-section for different photon interaction probabilities (photoelectric: Z 4-5 , Compton: Z and Pair production: Z 2 ).…”

Section: Radiation Shielding and Attenuation Propertiesmentioning

confidence: 99%

“…Lead is toxic, has a low melting point and is nontransparent as well 7 . In the last recent years, heavy metal oxides showed promising shielding parameters 8–12 . Borate glass is an excellent glass former that shows exceptional structural, thermal, and mechanical stability 13–15 …”

Section: Introductionmentioning

confidence: 99%

“…7 In the last recent years, heavy metal oxides showed promising shielding parameters. [8][9][10][11][12] Borate glass is an excellent glass former that shows exceptional structural, thermal, and mechanical stability. [13][14][15] The inclusion of bismuth oxide into the borate glass network not only improves radiation shielding properties by raising glass density, but also makes the created glass more compact.…”

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confidence: 99%

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Physical, structural, optical and gamma‐ray shielding properties of Na₂O‐CdO‐Bi₂O₃‐B₂O₃ glasses

Alajerami

Drabold

Thapa

et al. 2020

Int J of Appl Glass Sci

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The current study shows a new attempt to develop gamma‐ray shielding glasses. The proposed glass is a borate‐base composition modified with sodium and cadmium oxides and different concentrations of bismuth oxide. Based on the melt‐quenching technique, we prepared four glass compositions of 20NaO‐15CdO‐ (65−x)B2O3‐xBi2O3, where x = 0, 10, 20, and 30 mol%. The amorphous nature of the prepared samples was confirmed by XRD. To get more details about the structure, FTIR and UV‐Vis‐NIR were performed to characterize the prepared glasses. Moreover, we used ab initio molecular dynamics simulations to create the possible structures of the new compositions, and compared with the experimental measurements. A series of shielding parameters was investigated based on the gamma‐ray emission in the range of 0.01‐10 MeV. The results revealed an improvement of the shielding parameters with increasing of Bi2O3 content. The sample with the highest Bi2O3 (S4) has the highest Zeff and least HVL, while S1 (with no Bi2O3 content) has the lowest Zeff at all energy levels. The gamma‐ray transmission factor of the prepared glasses was compared with some commercial concretes. Finally, the new glasses especially with highest Bi2O3 are recommended to use in gamma radiation shielding facilities.

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Section: Radiation Shielding and Attenuation Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Physical, structural, optical and gamma‐ray shielding properties of Na₂O‐CdO‐Bi₂O₃‐B₂O₃ glasses

Alajerami

Drabold

Thapa

et al. 2020

Int J of Appl Glass Sci

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“…On the other hand, Z eff and N eff are highly used quantities for characterizing shielding properties (Monisha et al 2020). These are also used in the calculations of doses for radiation therapy and in agricultural industries (Akman et al 2015).…”

Section: Theorymentioning

confidence: 99%

Determination of Photon Shielding Parameters for Soils in Mangrove Forests

Hila¹,

Dicen²,

Javier-Hila³

et al. 2020

Philipp J Sci

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The mass attenuation coefficient (MAC), effective atomic number (Zeff), and effective electron density (Neff) values of soils in mangrove forests across the Philippine islands were investigated. In addition, ENDF/B-VI.8 cross-section data library was used for interpolating Zeff and Neff values. Photon energies considered in this study ranged from 59.5–1332 keV. MAC values were obtained using MCNP5 and PHITS Monte Carlo (MC) simulations and were found to be in good agreement with XCOM and values in literature. Results for Zeff were in good agreement with values obtained using Phy-X/ZeXTRa program. Each shielding parameter was investigated as a function of SiO2 concentrations.

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“…In the past few years, researchers have conducted various studies to find the best materials for reducing exposure to radiation and thus protecting people working in the field of radiation, as well as people exposed to radiation due to side effects [1][2][3][4][5][6][7][8][9][10][11]. Glass has features that make it distinct from other materials, such as visible light being able to pass through it, the ease of preparing glass in different and simple ways, and the possibility of changing the density of the glass during the preparation of glass samples.…”

Section: Introductionmentioning

confidence: 99%

Gamma Ray Shielding Properties of Yb3+-Doped Calcium Borotellurite Glasses

Almuqrin

Sayyed

2021

Applied Sciences

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This research work aims to investigate the radiation shielding ability of a Yb3+-doped calcium borotellurite glass system. The system has the basic composition of CaF2–CaO–B2O3–TeO2–Yb2O3 but is denoted as TeBYbn for simplicity. The effect of increasing the TeO2 content in the glasses from 10 to 54 mol% was investigated, with five different chosen compositions and densities. The Phy-X/PSD program was used to investigate the mass attenuation coefficient (µ/ρ) of the samples. The mass attenuation coefficients were theoretically determined by using an online software for the calculation of shielding parameters. Other parameters were then calculated and analyzed, such as the linear attenuation coefficient (µ), transmission factor (TF), radiation protection efficiency (RPE), effective atomic number (Zeff), and mean free path (MFP). TeBYb5, the glass with the greatest TeO2 content, was shown to have the greatest µ/ρ; however, at greater energies, the differences between the values are practically negligible. µ was shown to increase with density, such as from 0.386 cm−1 to 0.687 cm−1 for TeBYb1 and TeBYb5 at 0.284 MeV, respectively. The least TF was found for samples with a thickness of 1.5 cm, proving an inverse correlation between the thickness of the sample and the TF. The HVL and TVL of the glasses decreased as the density of the samples increased, which means that TeBYb1 is the least effective out of the investigated glasses. The five samples proved to have a lower MFP than some other shielding glasses, demonstrating their capabilities as radiation shields. Based on the calculated parameters, TeBYb5 indicated the greatest photon attenuation ability.

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Dy3+ doped SiO2–B2O3–Al2O3–NaF–ZnF2 glasses: An exploration of optical and gamma radiation shielding features

Cited by 32 publications

References 41 publications

Physical, structural, optical and gamma‐ray shielding properties of Na₂O‐CdO‐Bi₂O₃‐B₂O₃ glasses

Physical, structural, optical and gamma‐ray shielding properties of Na₂O‐CdO‐Bi₂O₃‐B₂O₃ glasses

Determination of Photon Shielding Parameters for Soils in Mangrove Forests

Gamma Ray Shielding Properties of Yb3+-Doped Calcium Borotellurite Glasses

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Dy3+ doped SiO2–B2O3–Al2O3–NaF–ZnF2 glasses: An exploration of optical and gamma radiation shielding features

Cited by 32 publications

References 41 publications

Physical, structural, optical and gamma‐ray shielding properties of Na2O‐CdO‐Bi2O3‐B2O3 glasses

Physical, structural, optical and gamma‐ray shielding properties of Na2O‐CdO‐Bi2O3‐B2O3 glasses

Determination of Photon Shielding Parameters for Soils in Mangrove Forests

Gamma Ray Shielding Properties of Yb3+-Doped Calcium Borotellurite Glasses

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Physical, structural, optical and gamma‐ray shielding properties of Na₂O‐CdO‐Bi₂O₃‐B₂O₃ glasses

Physical, structural, optical and gamma‐ray shielding properties of Na₂O‐CdO‐Bi₂O₃‐B₂O₃ glasses