Physical, structural, and mechanical properties of the concrete by FLUKA code and phy-X/PSD software

Akkurt, I.; Malidarre, Roya Boodaghi

doi:10.1016/j.radphyschem.2021.109958

Cited by 57 publications

(8 citation statements)

References 27 publications

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“…Calculated HVL and TVL are listed numerically in table 7. The decrease in both HVL and TVL by increasing Mo content for the present work shielding materials is due to the increase in the density of the sample and hence, the needed thickness in (cm) for better attenuation is decreased [5,26,27,[37][38][39][40]. The evaluation of Z eff and N eff was done using the data from the mass attenuation coefficient and using the mathematical formula mentioned in table 3.…”

Section: Results Of Radiological Characterizationmentioning

confidence: 99%

Dielectric, conductivity properties, elastic moduli, and gamma-ray attenuation abilities: A wide-ranging investigation into Molybdenum added ferrite nanoparticles

Desoky,

Allah,

Mansy

2023

Phys. Scr.

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The auto combustion technique was employed to synthesis magnesium nano ferrite (MgMoxFe2-xO4). The impact of Mo-doped on the crystal’s structural, morphological, and elastic properties were inspected by applying x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) spectroscopy techniques. Pursuant to the XRD analysis, all samples have a cubic structure with single-phase. The average crystallite size was identified to be in the nanometer range confirmed by SEM and TEM investigations. FTIR data was implemented to assign the force constants of the octahedral and tetrahedral sites. Elastic moduli including the Poisson ratio, Young’s modulus, bulk modulus, and rigidity modulus have been estimated. The division of elastic moduli for all synthesized concentrations was interpreted using binding forces between ions of the cubic lattice spinel. Over and above, the AC conductivity (σ AC) and dielectric properties and their frequency dependence were investigated for the nano ferrites samples as a function of dopant Mo content and temperature. Finally, the radiation shielding capacities of the proposed samples against gamma and fast neutron radiation have been assessed. The findings reveal that the higher the Mo content, the lower the value of the mass attenuation coefficient. There is no significant diversity between the obtained mass attenuation coefficients for the nano and the micro. Among the samples investigated in this study, the highest Mo concentration sample had the largest fast neutron removal cross-section.

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Section: Results Of Radiological Characterizationmentioning

confidence: 99%

Dielectric, conductivity properties, elastic moduli, and gamma-ray attenuation abilities: A wide-ranging investigation into Molybdenum added ferrite nanoparticles

Desoky,

Allah,

Mansy

2023

Phys. Scr.

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“…For BaBiB glasses, the attenuation of a parallel beam of gamma rays at a medium thickness, follows the Lambert-Beer law = formula is defined as the thickness of a material to attenuate initial beam intensity by half [19].…”

Section: G-ray Shielding Propertiesmentioning

confidence: 99%

Radiation shielding, physical, and elastic properties of BaO-B₂O₃-Bi₂O₃ glass system

et al. 2022

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In this research, the radiation shielding, structural, mechanical, and acoustic features of the 20BaO-(80-x) Bi2O2 -x B2O3 (where x=70, 60, 50, 40, 30, 20 mol%) glasses are investigated and the obtained results are reported in detail. The important fundamental parameters in the evaluation of the interaction of radiation with shielding material were the mass attenuation coefficient (MAC) and Half-Value Layer (HVL) that were obtained using the Phy-X/PSD program in the energy range from 0 to 10 MeV. Increasing the Bi2O3 concentration changes the composition and density of glass samples and affects the mechanical properties. As a result, the values of elastic moduli such as Young’s, Bulk, Shear, and Longitudinal moduli experience a slight reduction. In addition, the Poisson’s ratio decreases from 0.27 to 0.17 but the quantity of fractal Bond Connectivity (FBC) increases between 2.26 and 3.59 from BaBiB1to BaBiB6 glass samples which hints that present glasses have chain structure (3D). Furthermore, the micro-hardness (H) increases from 6.67 to 9.88 GPa with the increase in Bi2O3 concentration. The reported acoustic impedance (Zi) increases between 15.16 * 〖10〗^3 kg.m^(-2) s^(-1) and 19.00 * 〖10〗^3 kg.m^(-2) s^(-1). The result of this study shows that increasing the amount of Bi2O3 in the preferred glass samples leads to the achievement of high performance radiation shielding materials. Finally, from this research, we can exploit valuable information about the structure of the glass samples.

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“…The radiation shielding assessment is usually performed employing numerous systems for experimental measurements considering gamma rays and neutrons transmission experiments to derive some important characteristic shielding parameters such as linear attenuation coefficient (μ), macroscopic fast neutrons removal cross-section (Σ R ), and thermal/epithermal neutrons absorption cross section (Σ Abs ) 19 , 21 , 29 – 31 . Also, a considerable number of reliable theoretical studies has included analytical radiation shielding investigations, which are performed via various software programs that rely on validated analytical / semi-empirical models, cross-sectional databases, and/or rigid simulation engines to compute the needed shielding parameters such as; Phy-X/PSD 32 – 34 , FLUKA 35 , 36 , WinXcom 37 , NXCom 38 , MRCsC 39 , MCNP 40 , 41 , and GEANT4 42 , which is an effective way for the assessment during the initial design phase of the shield or when the required tools for the experimental measurement are unavailable.…”

Section: Introductionmentioning

confidence: 99%

Experimental, analytical, and simulation studies of modified concrete mix for radiation shielding in a mixed radiation field

Nabil,

El-Samrah,

Omar

et al. 2023

Sci Rep

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The current study assessed two concrete mixes prepared using dolomite and barite/limonite aggregates to shield against both energetic photons and neutrons. After that, a designed mix which comprised barite/goethite aggregates plus fine-powdered boron carbide additive, was proposed to improve the overall radiation shielding properties and in the same time, doesn’t compromise or even improve the physic-mechanical properties of the mature concrete. The assessment started first with intensive experimental investigations to investigate the prepared mixes’ shielding capabilities against both γ-rays and fast neutrons. Then, analytical computations were performed via number of reliable software programs such as; Phy-X, NXCom, MRCsC, JANIS-4, and MCNP5, in order to confirm the experimental results and to validate the created Monte-Carlo models. Finally, an intensive radiation shielding assessment for all concrete mixes understudy using, mainly, the validated MCNP models, was performed. The obtained results have revealed the superiority of barite mixes over the dolomite mix concerning attenuating photons moreover, the proposed designed mix has shown superiority over the other two prepared mixes considering shielding against; energetic photons, fast/thermal neutrons, and secondary emitted γ-rays, which nominates this mix to be a suitable universal shield that can be used even in mixed radiation fields.

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Physical, structural, and mechanical properties of the concrete by FLUKA code and phy-X/PSD software

Cited by 57 publications

References 27 publications

Dielectric, conductivity properties, elastic moduli, and gamma-ray attenuation abilities: A wide-ranging investigation into Molybdenum added ferrite nanoparticles

Dielectric, conductivity properties, elastic moduli, and gamma-ray attenuation abilities: A wide-ranging investigation into Molybdenum added ferrite nanoparticles

Radiation shielding, physical, and elastic properties of BaO-B₂O₃-Bi₂O₃ glass system

Experimental, analytical, and simulation studies of modified concrete mix for radiation shielding in a mixed radiation field

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Physical, structural, and mechanical properties of the concrete by FLUKA code and phy-X/PSD software

Cited by 57 publications

References 27 publications

Dielectric, conductivity properties, elastic moduli, and gamma-ray attenuation abilities: A wide-ranging investigation into Molybdenum added ferrite nanoparticles

Dielectric, conductivity properties, elastic moduli, and gamma-ray attenuation abilities: A wide-ranging investigation into Molybdenum added ferrite nanoparticles

Radiation shielding, physical, and elastic properties of BaO-B2O3-Bi2O3 glass system

Experimental, analytical, and simulation studies of modified concrete mix for radiation shielding in a mixed radiation field

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Product

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Radiation shielding, physical, and elastic properties of BaO-B₂O₃-Bi₂O₃ glass system