Characterization of the radiation shielding properties of fired lead sample for X-ray shielding applications

Agwu, Kenneth K.; Okoye, Chukwuemeka Madubuko Ijeoma; Ahia, Christian Chinedu; Ikegbu, Godswill Ogbu

doi:10.1016/j.pnucene.2021.103765

Cited by 8 publications

(8 citation statements)

References 35 publications

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“…The present study provides an improved understanding of the electronic structure of earlier reported fired Pb ore deposits [18] and suggests that the annealed Pb composite material can further be harnessed as a choice material for radiation shielding applications.…”

Section: Discussionmentioning

confidence: 74%

“…Information on the devised technique incorporating the blast furnace approach implemented as a preliminary method for the sample purification in this study, including detailed literature on the sample collection and preparation, has been reported elsewhere, [ 18 ] in addition to relevant schematic diagrams for more clarity. In the present study, the Pb composite was further annealed in palladium‐diffused hydrogen ambient at 700 °C for 3600 s in a horizontal quartz reactor to eliminate water vapor, native impurities, and lingering oxides.…”

Section: Methodsmentioning

confidence: 99%

“…Finally, details of all theoretical background appropriate to the present study have been documented in the previous study. [ 18 ]…”

Section: Methodsmentioning

confidence: 99%

“…Annealing as a heat treatment technique, which modifies the physical and chemical properties of materials to improve their workability, ductility, and machinability, has been shown to affect their structural properties. [ 16,17 ] This work is a continuation of a previous study [ 18 ] where the measurement of mass attenuation coefficient values and radiation transmission of slabs obtained from a fired Pb ore deposit that was mined at Enyigba, Ebonyi state Nigeria, for X‐ray shielding purposes was reported. The present study focuses on an in‐depth investigation of the structural properties of the fired Pb composite using various relevant microscopic and spectroscopic techniques.…”

Section: Introductionmentioning

confidence: 92%

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Determining the Structural Properties and Vibrational Modes of Annealed Lead Composite Material Deposit

Ahia,

Meyer,

Umeh

2024

Physica Status Solidi (a)

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Techniques for effectively harnessing lead (Pb) deposits for optimum utilization have attracted a lot of research interest. Results obtained from investigating the elemental composition, vibrational modes, and structural properties of a fired Pb composite deposit, which was purified using an electric kiln furnace and further annealed in palladium‐diffused hydrogen ambient, are reported in the present study. Both atomic force microscopy (AFM) and scanning electron microscopy (SEM) analysis on the deposit indicate that the Pb composite is composed of crystal‐like morphology. The vibrational modes obtained from the material are identical to the Raman spectrum reported for PbSO4 (anglesite). Also, data acquired from the energy dispersive X‐ray (EDX) analysis of the annealed Pb composite material confirmed the presence of zinc (Zn), carbon (C), silicon (Si), sulfur (S), and oxygen (O) in the material. At the same time, Pb appeared to be the primary constituent with reference to its weight percentage composition compared to other elements. Using the Fourier transform infrared (FTIR) spectroscopy technique, a slight shift in peak positions to higher wavenumbers was observed for most of the frequency bands in the FTIR spectrum compared to their position in the Raman spectrum. The cause of the shift in wavenumber is still subject to investigation but can be tentatively ascribed to be induced by factors such as a decrease in bond length because of modification in electronegativity of the atom or structural changes at the subatomic level. The photoluminescence (PL) spectra obtained from the sample showed overlapped weak emission bands which were observed in the ultraviolet (UV) and visible (VIS) region, while a small optical band gap of ∽ 0.1307 eV was extrapolated through the Tauc plot for the Pb composite material using a direct band gap transition approach. The findings from the present study may be vital for providing an improved understanding of the electronic and structural properties of the annealed Pb composite deposit, while promoting the development of a feasible approach for the recovery and recycling of Pb for future related applications.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 74%

Section: Methodsmentioning

confidence: 99%

“…Finally, details of all theoretical background appropriate to the present study have been documented in the previous study. [ 18 ]…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 92%

See 2 more Smart Citations

Determining the Structural Properties and Vibrational Modes of Annealed Lead Composite Material Deposit

Ahia,

Meyer,

Umeh

2024

Physica Status Solidi (a)

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“…Traditional dose reduction methods by Pb shields are widely used to reduce external radiation exposure doses of X-rays or γ-rays 20 , 21 . Lead has a very good radiation shield and very popular as a low cost and high efficiency for X-rays or γ-rays radiation shielding.…”

Section: Introductionmentioning

confidence: 99%

Composites cement/BaSO4/Fe3O4/CuO for improving X-ray absorption characteristics and structural properties

Gharissah

Ardiansyah

Pauziah

et al. 2022

Sci Rep

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Composite cement/BaSO4/Fe3O4/CuO with a thickness of 0.6 cm for various amounts of CuO: 2 wt%, 4 wt%, 6 wt%, and 8 wt% were successfully synthesized for the X-ray radiation shield. The bonding characteristics of composite and structural properties were determined using Fourier transform infrared spectra for the wavelength range of 4000–400 cm−1 and X-ray diffraction with the range of 2θ from 25° to 50°, respectively. The shielding ability was measured using a mobile X-ray with an energy of 55, 66, and 77 keV for determining the mass and linear attenuation coefficient, electronic and atomic cross-section. These shield characteristics best agreement with theoretical calculation from the XCOM database for energy < 77 keV with half value layer (HVL) < 0.3 cm. The best shielding in this study indicated by the lowest HVL and MFP is composite for CuO 8 wt%. The HVL and MFP shows better values compared to the previous reported using composite rubber-based, indicated high potentials composite in this study for design new and efficient radiology rooms as an alternative concrete, especially for X-ray radiation, in the future.

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Functionalizing surface state of composite geopolymer concrete filler with metal (Ni or Fe) for increasing performance of X-ray shielding

Ihsani,

Rahmat,

Heryanto

et al. 2023

Appl. Phys. A

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Characterization of the radiation shielding properties of fired lead sample for X-ray shielding applications

Cited by 8 publications

References 35 publications

Determining the Structural Properties and Vibrational Modes of Annealed Lead Composite Material Deposit

Determining the Structural Properties and Vibrational Modes of Annealed Lead Composite Material Deposit

Composites cement/BaSO4/Fe3O4/CuO for improving X-ray absorption characteristics and structural properties

Functionalizing surface state of composite geopolymer concrete filler with metal (Ni or Fe) for increasing performance of X-ray shielding

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