Characterization of Ultramafic–Alkaline–Carbonatite complex for radiation shielding competencies: An experimental and Monte Carlo study with lithological mapping

Libeesh, N.K.; Naseer, K.A.; Arivazhagan, S.; El‐Rehim, A. F. Abd; ALMisned, Ghada; Tekın, H.O.

doi:10.1016/j.oregeorev.2022.104735

Cited by 29 publications

(8 citation statements)

References 43 publications

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“…Normal concrete can be used as a useful material for gamma-ray shielding if it is used at a w/c ratio at which concrete has maximum density. The results are in accordance to the literature related to different materials used for shielding against radiation; specifically, studies that used high density constituent in concrete, significantly increased the attenuation coefficient [25][26][27][28]32,33,37,38].…”

Section: Presents the Relation Between Density And Linear Attenuation...supporting

confidence: 90%

“…Heavyweight concrete is characterized by its density, which is greater than 2600 kg/m 3 [23] as compared to ordinary concrete composed of normal weight aggregate having density ranges from 2200 kg/m 3 to 2600 kg/m 3 [24]. Density has a profound impact on the structural elements, allowing an appreciable reduction in the thicknesses of protective members while not compromising on shielding performance [25][26][27][28][29][30][31][32]. A high density of concrete is usually attained by using high-density aggregates, such as barite, goethite, magnetite, hematite, serpentine, lead, heavy metal oxide, steel slag, steel shot, and colemanite [33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

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Computational AI Models for Investigating the Radiation Shielding Potential of High-Density Concrete

et al. 2022

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Concrete is an economical and efficient material for attenuating radiation. The potential of concrete in attenuating radiation is attributed to its density, which in turn depends on the mix design of concrete. This paper presents the findings of a study conducted to evaluate the radiation attenuation with varying water-cement ratio (w/c), thickness, density, and compressive strength of concrete. Three different types of concrete, i.e., normal concrete, barite, and magnetite containing concrete, were prepared to investigate this study. The radiation attenuation was calculated by studying the dose absorbed by the concrete and the linear attenuation coefficient. Additionally, artificial neural network (ANN) and gene expression programming (GEP) models were developed for predicting the radiation shielding capacity of concrete. A correlation coefficient (R), mean absolute error (MAE), and root mean square error (RMSE) were calculated as 0.999, 1.474 mGy, 2.154 mGy and 0.994, 5.07 mGy, 5.772 mGy for the training and validation sets of the ANN model, respectively. Similarly, for the GEP model, these values were recorded as 0.981, 13.17 mGy, and 20.20 mGy for the training set, whereas the validation data yielded R = 0.985, MAE = 12.2 mGy, and RMSE = 14.96 mGy. The statistical evaluation reflects that the developed models manifested close agreement between experimental and predicted results. In comparison, the ANN model surpassed the accuracy of the GEP models, yielding the highest R and the lowest MAE and RMSE. The parametric and sensitivity analysis revealed the thickness and density of concrete as the most influential parameters in contributing towards radiation shielding. The mathematical equation derived from the GEP models signifies its importance such that the equation can be easily used for future prediction of radiation shielding of high-density concrete.

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Section: Presents the Relation Between Density And Linear Attenuation...supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Computational AI Models for Investigating the Radiation Shielding Potential of High-Density Concrete

et al. 2022

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“…Although this is an expected occurrence during the radiation-matter interaction, the findings clearly demonstrate that granite sample 5 with the maximum Fe 2 O 3 additive has the lowest half value thicknesses and hence the best gamma ray shielding characteristics among the studied granite samples. Alrowaili et al [46] previously reported comparable impact of rising Fe 2 O 3 percentage on decreased half value layer values and accordingly, enhanced gamma-ray shielding properties. The mean free path (λ) distance (cm) is another significant feature that may be described as related to the shielding materials utilized.…”

Section: Radiation Shielding Characteristicsmentioning

confidence: 79%

Towards better understanding of structural, physical and radiation attenuation properties of the granites in Aegean region of Turkey: İzmir and Kütahya Provinces

Deliormanlı¹,

Deliormanli²,

Turan³

et al. 2022

Phys. Scr.

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In this study, physical, chemical, structural and radiation attenuation properties of some granite samples collected from Kütahya-Simav and İzmir (Bergama and Karaburun) were investigated. The true particle density of the studied granite samples was in the range of 2.65 g/cm3 to 2.72 g/cm3 and the median particle diameter was between ~12 μm and 41 μm. According to the structural examination results obtained from the study, the chemical compositions of the extracted granite samples varied by area. While SiO2 was the dominating component in certain locations, it was replaced by Fe2O3 in another. This condition also had a direct effect on the densities of the granite samples extracted. At the conclusion of the study, it was found that the predominant factor affecting the radiation shielding characteristics of granites was the quantity of Fe2O3 in the composition, with the greatest gamma-ray shielding qualities supplied by samples 4 and 5, which had the highest Fe2O3 ratio. Our results indicate that sample 5 and the previously studied Capao Bonita sample had comparable half value layer values at low, medium, and high gamma ray levels. It may be concluded that Izmir granites are a more attractive option to granite for usage as radiation shielding building materials, owing to their high Fe2O3 concentration, and may be a feasible alternative to less desirable concrete materials for shielding applications.

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“…[ 9 , 10 ], the major water flow comes from deep fractures. Recently, remote sensing studies provided new insights on mineral resource mapping [ [11] , [12] , [13] , [14] , [15] , [16] , [17] ] and on spatial mapping of this reservoir [ [18] , [19] , [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] ]. Remote sensing is advantageous where plant cover and soil cover are important.…”

Section: Introductionmentioning

confidence: 99%

Landsat-8 OLI/SRTM and gravity characteristics of the Pan-African fracture aquifers of the north central Cameroon region (central Africa)

Deffo,

Yem Mbida,

Yene Atangana

et al. 2024

Heliyon

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Characterization of Ultramafic–Alkaline–Carbonatite complex for radiation shielding competencies: An experimental and Monte Carlo study with lithological mapping

Cited by 29 publications

References 43 publications

Computational AI Models for Investigating the Radiation Shielding Potential of High-Density Concrete

Computational AI Models for Investigating the Radiation Shielding Potential of High-Density Concrete

Towards better understanding of structural, physical and radiation attenuation properties of the granites in Aegean region of Turkey: İzmir and Kütahya Provinces

Landsat-8 OLI/SRTM and gravity characteristics of the Pan-African fracture aquifers of the north central Cameroon region (central Africa)

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