<scp>Monte Carlo</scp> simulations study on gamma ray–neutron shielding characteristics for vinyl ester composites

Akkurt, I.; Malidarre, Roya Boodaghi; Kartal, İlyas; Günoğlu, Kadir

doi:10.1002/pc.26185

Cited by 53 publications

(7 citation statements)

References 57 publications

(50 reference statements)

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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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“…Based on the Monte Carlo method, [24][25][26][27][28] this study uses SuperMC for material design and simulation calculation. SuperMC is a universal, intelligent, and accurate nuclear design and safety evaluation software with independent intellectual property rights developed by the FDS team of the Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences.…”

Section: Establishment and Description Of The Simulation Modelmentioning

confidence: 99%

Radiation shielding design and development of Bi/Ta/PU lead-free flexible textile composites

Chen

Peng

et al. 2023

Journal of Industrial Textiles

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Aiming at the difficulty of designing flexible shielding materials for lightweight and complex structures, the radiation shielding simulation model of coated fabric was established by SuperMC nuclear simulation software system and the γ-ray shielding performance of the material was predicted. Pb and Ta doped Bi/PU coated fabric composites were prepared by coating process. SEM, EDS, γ-ray shielding performance, mechanical properties, and wear resistance were tested. The results show that the simulated values of shielding performance are in good agreement with the measured values, the maximum deviation of the predicted value is 2.94% and the minimum is 0.25%. Doping Pb and Ta can increase the probability of the photoelectric effect and improve the γ-ray shielding performance of the material. When the doping amount of Ta is 5wt%, the shielding rate (simulation value) of Bi/Ta/PU coated fabric composites to 59.5 keV, 122 keV, and 184 keV γ-rays reaches 29.80%, 20.35%, and 8.09%, respectively, which is 3.13%, 2.32%, and 0.95% higher than that without doping. However, Ta is more environmentally safe and can replace Pb as a shielding additive. Doping auxiliary functional particles will improve the shielding performance but will reduce the material’s wear resistance and mechanical properties. After doping 5%Ta, the wear resistance index decreased by 6.81, and the tensile strength decreased by 4.5 MPa. The influence mechanism of process parameters on shielding performance is further revealed by visual analysis, which provides a new reference for the design of lead-free flexible shielding materials.

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“…Monte Carlo simulation is a common method for radiation shielding material design and nuclear safety assessment. [21][22][23][24][25] SuperMC is a universal, intelligent, and accurate nuclear design and safety evaluation software with completely independent intellectual property rights developed by the FDS team of the Institute of Nuclear Safety Technology, Chinese Academy of Sciences. [26][27][28][29][30][31][32][33] It can be applied to nuclear reactor physics, nuclear criticality safety, radiation protection and dosimetry, radiation shielding, medical physics, and nuclear logging.…”

Section: Establishment and Description Of The Modelmentioning

confidence: 99%

Prediction of γ-ray shielding performance and study of Bi/PU coated fabric

Chen

Peng

et al. 2022

Textile Research Journal

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The radiation shielding simulation model of coated fabric (flexible composite) was established for the first time by SuperMC nuclear simulation software to help solve the problems of small volume, complex structure, and difficult design of flexible shielding materials, and the γ-ray shielding performance was calculated. Bismuth/polyurethane coated fabric was prepared by a coating method, and its scanning electron microscope, γ-ray shielding performance and mechanical properties were tested. The results show that the simulation accuracy was improved due to the one-to-one correspondence between the structural parameters and performance parameters of the simulation model and the actual samples. The simulation value was in good agreement with the measured value. The shielding performance and mechanical properties of fabric composites were improved after coating. Increasing the content of bismuth and coating thickness can improve the shielding performance of the coated fabric. However, when the content of bismuth was too large, or the coating was too thick, the mechanical properties were relatively decreased. The deposition of ray energy in the material was analyzed by the visual analysis method, and the influence mechanism of process parameters on shielding performance was further revealed, which provided a new theoretical reference for the design of flexible shielding materials. A shielding material design and performance prediction method based on SuperMC is proposed, which can be used for personalized customization design and performance prediction and evaluation before use. It has practical guiding significance for producing and manufacturing flexible fabric shielding materials for protective clothing and equipment.

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Monte Carlo simulations study on gamma ray–neutron shielding characteristics for vinyl ester composites

Cited by 53 publications

References 57 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 design and development of Bi/Ta/PU lead-free flexible textile composites

Prediction of γ-ray shielding performance and study of Bi/PU coated fabric

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