Heavy metal oxide (HMO) glasses as an effective member of glass shield family: A comprehensive characterization on gamma ray shielding properties of various structures

Tekın, H.O.; Süsoy, G.; Issa, Shams A.M.; Ene, Antoaneta; ALMisned, Ghada; Rammah, Y.S.; Ali, Fatema T.; Algethami, Merfat; Zakaly, Hesham M.H.

doi:10.1016/j.jmrt.2022.02.074

Cited by 28 publications

(4 citation statements)

References 49 publications

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“…The material's mass attenuation coe cient (µm) is calculated by dividing µ(cm − 1 ) by the density (ρ) of the material. For a chemical combination, the mass attenuation coe cient [13,14] is given by:…”

Section: -Theoretical Calculationmentioning

confidence: 99%

Investigation of the radiation Shielding Behavior of Monocrystalline and Polycrystalline solar cell Using experimental, Geant4 Simulation Code and WinXCOM Database

Al-zaidi,

Saudi,

Nassar

et al. 2023

Preprint

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This study focuses on the radiation shielding characteristics of monocrystalline and polycrystalline Si solar cells. The linear attenuation coefficient (µ) for both cell types has been measured. By measuring the cell density, the mass attenuation coefficient (µ/ρ) has been calculated. The photon absorption capacity of polycrystalline solar cells is detected to be higher than that of monocrystalline solar ones. Lattice disordering and grain-boundary defects may enhance gamma absorption. Theoretical calculations have been carried out using Win X-Com and GEANT4 code computer programs at various photon energies ranging from 80 to 2614 keV. A great agreement was found with the experimental results at all energies. Some shielding parameters based on the measured attenuation coefficient such as the effective atomic number (Zeff), the effective electron density (Nel), half value layer (HVL), and mean free path (MFP) have been calculated at different energies. Polycrystalline solar cells were found to have better shielding properties than monocrystalline cells since they have lower MFP values. Macroscopic effective removal cross sections (ΣR) for fast neutrons have been also calculated by applying the win X-com software. Polycrystalline solar cells have a higher ΣR value than monocrystalline cells. We can conclude that, in addition to energy conversion, photovoltaic systems are superior shielding materials for both gamma rays and neutrons.

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Section: -Theoretical Calculationmentioning

confidence: 99%

Investigation of the radiation Shielding Behavior of Monocrystalline and Polycrystalline solar cell Using experimental, Geant4 Simulation Code and WinXCOM Database

Al-zaidi,

Saudi,

Nassar

et al. 2023

Preprint

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show abstract

“…After calculating all parameters, the T0.5 values of the P50C30N15Fe5 sample were compared with the T0.5 values of other bioactive glass samples taken from the literature, and behavioral differences were examined in detail. The technical details on all these investigated parameters may be obtained in our previous studies [26][27][28] and other similar studies [19][20][21] published in scientific publications.…”

Section: Radiation Attenuation Propertiesmentioning

confidence: 99%

Utilizing Fe2O3 in phosphate-based glasses to enhance biocompatibility and gamma-ray absorption characteristics: A step towards understanding of Na2O/Fe2O3 translocation in P2O5–CaO–Na2O glass system

Neel

Sheela

Oyhanart

et al. 2023

Ceramics International

Self Cite

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“…The hybrid nanofibers reveal admirable properties, which attract them for several biomedical uses, such as drug delivery, wound type dressing materials, tissue engineering frames, biosensors, biological implants, and refinement devices 17 . Usually, numerous oxide-based nanostructures have attained significant focus in the research area of chemistry 20 , physics and material science 21 , because of the existence of highly electronegative oxygen atoms 20 . Bonding electrons are pulled towards itself by the higher electronegative element and isolated from the further elements accordingly, inducing substantial electric field at the interatomic scale 22 , 23 .…”

Section: Introductionmentioning

confidence: 99%

Fabrication, structural, and enhanced mechanical behavior of MgO substituted PMMA composites for dental applications

Kumari,

Mishra,

Parveen

et al. 2024

Sci Rep

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The most common denture material used for dentistry is poly-methyl-methacrylate (PMMA). Usually, the polymeric PMMA material has numerous biological, mechanical and cost-effective shortcomings. Hence, to resolve such types of drawbacks, attempts have been made to investigate fillers of the PMMA like alumina (Al2O3), silica (SiO2), zirconia (ZrO2) etc. For the enhancement of the PMMA properties a suitable additive is required for its orthopedic applications. Herein, the main motive of this study was to synthesize a magnesium oxide (MgO) reinforced polymer-based hybrid nano-composites by using heat cure method with superior optical, biological and mechanical characteristics. For the structural and vibrational studies of the composites, XRD and FT-IR were carried out. Herein, the percentage of crystallinity for all the fabricated composites were also calculated and found to be 14.79–30.31. Various physical and optical parameters such as density, band gap, Urbach energy, cutoff energy, cutoff wavelength, steepness parameter, electron–phonon interaction, refractive index, and optical dielectric constant were also studied and their values are found to be in the range of 1.21–1.394 g/cm3, 5.44–5.48 eV, 0.167–0.027 eV, 5.68 eV, 218 nm, 0.156–0.962, 4.273–0.693, 1.937–1.932, and 3.752–3.731 respectively. To evaluate the mechanical properties like compressive strength, flexural strength, and fracture toughness of the composites a Universal Testing Machine (UTM) was used and their values were 60.3 and 101 MPa, 78 and 40.3 MPa, 5.85 and 9.8 MPa-m1/2 respectively. Tribological tests of the composites were also carried out. In order to check the toxicity, MTT assay was also carried out for the PM0 and PM15 [(x)MgO + (100 − x) (C5O2H8)n] (x = 0 and 15) composites. This study provides a comprehensive insight into the structural, physical, optical, and biological features of the fabricated PMMA-MgO composites, highlighting the potential of the PM15 composite with its enhanced density, mechanical strength, and excellent biocompatibility for denture applications.

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Heavy metal oxide (HMO) glasses as an effective member of glass shield family: A comprehensive characterization on gamma ray shielding properties of various structures

Cited by 28 publications

References 49 publications

Investigation of the radiation Shielding Behavior of Monocrystalline and Polycrystalline solar cell Using experimental, Geant4 Simulation Code and WinXCOM Database

Investigation of the radiation Shielding Behavior of Monocrystalline and Polycrystalline solar cell Using experimental, Geant4 Simulation Code and WinXCOM Database

Utilizing Fe2O3 in phosphate-based glasses to enhance biocompatibility and gamma-ray absorption characteristics: A step towards understanding of Na2O/Fe2O3 translocation in P2O5–CaO–Na2O glass system

Fabrication, structural, and enhanced mechanical behavior of MgO substituted PMMA composites for dental applications

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