Investigation of Gamma Ray Shielding by Polymer Composites

Husain, Hazran; Naji, N A Rasheed; Mahmood, B M

doi:10.1088/1757-899x/454/1/012131

Cited by 14 publications

(5 citation statements)

References 6 publications

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“…There have been several studies comparing lead additives with different sizes. 19,30,31 In these studies, it was found that smaller particle sizes lead to better shielding properties, nevertheless, such comparison can be made for the FRP composites addressed by this paper in addition to investigating the effect of particle size on the mechanical stability of the composite, more specifically, in terms of possible structural deteriorations such as tearing and cracking of the polymer.…”

Section: Resultsmentioning

confidence: 99%

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Effect of lead nanoparticles on the radiation shielding characteristics of carbon fiber/epoxy composites

Saleem

Abdelal

Alsabbagh

et al. 2022

Journal of Reinforced Plastics and Composites

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Materials with shielding capabilities against gamma radiation are important for nowadays applications in order to alleviate radiation damage. This study investigates the shielding characteristics of carbon fiber/epoxy composites incorporating lead nanoparticles (Pb-NP) of variable weight fractions. The composites in this experimental study are prepared using the hand-layup vacuum bagging process at room temperature. Mass attenuation coefficients are calculated for composites with variable Pb-NP weight fractions based on radiation intensity measurements taken using NaI (Tl) scintillation detector. The results show that adding small fractions of lead nanoparticles to the matrix phase of the composite material leads to improving its shielding properties, including their linear attenuation coefficient, mass attenuation coefficient and the Half-Value Layer (HVL). The results also show that mass attenuation coefficients of composite material with added Pb-NPs are higher than those of pure lead. For validation purposes, the experimental results are compared to computational results obtained using MCNP5 code for the same weight fractions of Pb-NPs. The two sets of results were found to be in good agreement with a maximum relative error of ∼16%.

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Section: Resultsmentioning

confidence: 99%

“…In another attempt, Husain et al 19 studied the shielding properties of polymer composites with added lead powder and lead shot balls. They found that the linear attenuation coefficient for composites with lead powders was better than that of composites with lead shot balls.…”

Section: Introductionmentioning

confidence: 99%

Effect of lead nanoparticles on the radiation shielding characteristics of carbon fiber/epoxy composites

Saleem

Abdelal

Alsabbagh

et al. 2022

Journal of Reinforced Plastics and Composites

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“…As it interacts with matter through three different processes: the photoelectric effect, Compton scattering, and pair production. [12]- [15]. The energy of the incident gamma radiation and the composition of the shielding material both affect how likely each interaction will be.…”

Section: Introductionmentioning

confidence: 99%

Nuclear Radiation Shielding Capabilities of Fiber-Reinforced Concrete: a case study Hybrid-Polypropylene-Steel

Bakr,

Deifalla

2023

Proceedings of the 9th World Congress on Mechanical, Chemical, and Material Engineering

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As Fiber reinforced concrete (FRC) have superior properties over the conventional concrete; however, this superiority depends on the types of fiber used inside the concrete mixture. Radiation attenuation parameters as linear attenuation coefficient μ (LAC), mass attenuation coefficients µ m (MAC), Half Value Layer (HVL), Tenth Value Layer (TVL) and Mean Free Path (MFP), were calculated for the studied Hybrid-Polypropylene-Steel, FRC, at photon energies 80, 356, 662 and 1333 KeV. For the findings of the study, the hybrid fiber-reinforced concrete is suitable for the nuclear shielding applications. In addition, the increase in the fiber contents improves the shielding efficiency.

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“…Composites are materials that contain solid burden conveying material (known as reinforcement) imbedded in a more vulnerable material known as matrix [1]. Polymeric composites containing different measures of inorganic added substances have been widely read by a few specialists to contemplate the protecting properties toward gamma and x-radiation [2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23]. The added substances might be any of the fitting high-electron thickness materials, for example, lead oxides, lead silicate, lead sulfide, and so forth, scattered in a plastic matrix or materials containing lead acrylate.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Radiation Shielding Properties of Polymer-Lead (II) Oxide Composites

Salawu

Gbolahan

Alabi

2021

J. Nig. Soc. Phys. Sci.

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Long term exposure to very high levels of radiations from medical diagnostic centres, industries, nuclear research establishments and nuclear weapon development have resulted in health effects such as cancer and acute radiation syndrome, hence the need for proper radiation shielding. This paper investigated Epoxy-Lead (II) Oxide (PbO) composite as radiation shielding. The composites were prepared by dispersion of microsized PbO particles into polymeric materials using effective melt-mixing method and cast in a 4 cm by 6 cm rectangular aluminium Mold with a thickness of 5 mm and was allowed to set over night at room temperature. The gamma ray attenuation ability of the composites were studied using gamma ray transmission or attenuation coefficient determination for the gamma ray energy. Three gamma ray sources Ba-133, Cs-137 and Co-60 were employed. The density, linear attenuation coefficient, half value layer (HVL), relaxation length and heaviness of the samples were determined. The measured values of linear attenuation coefficient increased with increasing filler concentration in all the samples at all gamma ray energies. It was also noticed that 40 % and 50 % filler samples attenuates more relative to the other samples under study. The maximum linear attenuation attained was found at energy of 662 keV. The composites have been found to possessed medical gamma-ray attenuation characteristics among the sample materials over a certain photon energy range (0.08 MeV–1.332 MeV) and found useful as a biological radiation shielding against gamma rays.

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Investigation of Gamma Ray Shielding by Polymer Composites

Cited by 14 publications

References 6 publications

Effect of lead nanoparticles on the radiation shielding characteristics of carbon fiber/epoxy composites

Effect of lead nanoparticles on the radiation shielding characteristics of carbon fiber/epoxy composites

Nuclear Radiation Shielding Capabilities of Fiber-Reinforced Concrete: a case study Hybrid-Polypropylene-Steel

Assessment of Radiation Shielding Properties of Polymer-Lead (II) Oxide Composites

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