Effects of Ce2O3 on multi-component borovanadate glass structural, optical, and attenuation characteristics

Gomaa, Hosam M.; Saudi, H. A.; Yahia, I.S.; Zahran, H. Y.; Makram, B. M. A.

doi:10.1016/j.radphyschem.2023.110847

Cited by 8 publications

(4 citation statements)

References 23 publications

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“…A material's atomic cross-section (ACS, σ a ) and electronic cross-section (ECS, σ e ) must first be identified to obtain the Z eff for that substance. To figure out these parameters, the below equations might be utilized [54]:…”

Section: Theoretical Basismentioning

confidence: 99%

“…w i presents the fractional weight of the target individual element. ECS can also be computed using the equation provided below [54]:…”

Section: Theoretical Basismentioning

confidence: 99%

“…f i represents the target individual element's fractional abundance. As a result, Z eff might be calculated as follows [54]:…”

Section: Theoretical Basismentioning

confidence: 99%

“…When materials absorb photons, a virtual atomic number (Z eff ) defines the composite matter, called Z eq , when photons are scattered. Z eq may be calculated using (equation ( 9)) [54]:…”

Section: Theoretical Basismentioning

confidence: 99%

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Evaluation of shielding properties of a developed nanocomposite from intercalated attapulgite clay by Cd/Pb oxides nanoparticles

Negm,

El-Sharkawy,

Abdeltwab

et al. 2024

Phys. Scr.

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The study investigated new nanocomposites' γ-ray and neutron shielding properties based on raw attapulgite, a clay matrix intercalated with different weight percentages of mixed nanometal oxides CdO and PbO. The various percentages were as follows: (100-2x)%Attapulgite + x%CdO + x%PbO, abbreviated as (AT100-2xCdxPbx), where x= 5, 10, 15%. The nanocomposites were characterized using XRD, FTIR, and EDX, confirming their successful preparation. SEM images revealed that the mixed oxide nanoparticles were successfully intercalated into the layers of attapulgite clay, with an average particle size of approximately 31.46 nm. The bulk densities of the prepared nanocomposites were measured to be in the range of 2.0342 to 2.5550 g/cm3. GEANT4 simulations were employed to evaluate the nanocomposites' γ-ray and neutron shielding performance in the photon energy range of 0.015 to 15 MeV. Phys-X code was used for verification. The simulation results showed a maximum difference of approximately 9.5% between GEANT4 and Phys-X predictions. To assess the γ-ray shielding performance, various shielding parameters were calculated at selected photon energies. The µm values ranged from 4.589 to 0.020 cm2.g-1, 6.311 to 0.021 cm2.g-1, 8.350 to 0.022 cm2.g-1 and 10.804 to 0.023 cm2.g-1 for raw attapulgite, AT90Pb5Cd5, AT80Pb10Cd10, AT70Pb15Cd15 across the photon energy range. The AT70Pb15Cd15 nanocomposite exhibited the highest µm, Zeff, Zeq, and the lowest T1/2, T1/10, and MFP values. Notably, it also demonstrated the highest FNRCS (approximately 0.1 cm-1). These findings suggest that clay-based nanocomposites represent a new class of low-cost, locally available advanced materials with potential applications in γ-ray and neutron shielding characteristics.

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Section: Theoretical Basismentioning

confidence: 99%

“…w i presents the fractional weight of the target individual element. ECS can also be computed using the equation provided below [54]:…”

Section: Theoretical Basismentioning

confidence: 99%

“…f i represents the target individual element's fractional abundance. As a result, Z eff might be calculated as follows [54]:…”

Section: Theoretical Basismentioning

confidence: 99%

“…When materials absorb photons, a virtual atomic number (Z eff ) defines the composite matter, called Z eq , when photons are scattered. Z eq may be calculated using (equation ( 9)) [54]:…”

Section: Theoretical Basismentioning

confidence: 99%

See 2 more Smart Citations