Gamma Ray Shielding Properties of Some Concrete Materials

Fugaru, Viorel; Bercea, S.; Postolache, C.; Manea, Simona Eugenia; Moanta, Adriana; Petre, Ionela; Militaru, Gheorghe

doi:10.12693/aphyspola.127.1427

Cited by 33 publications

(9 citation statements)

References 3 publications

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“…The table showed a gradual decline in the TVL and HVL values of the mixes as their densities are increasing. Low HVL and TVL values normally indicate good radiation shielding properties of the materials [90]. The TVL and HVL values of S3.0 were slightly lower than S0.0, possibly because of the higher density of S3.0 compared to that of S0.0.…”

Section: γ-Ray Radiation Shieldingmentioning

confidence: 97%

Effect of nano-silica slurry on engineering, X-ray, and γ-ray attenuation characteristics of steel slag high-strength heavyweight concrete

Cheah

Khalaf

Ramli

et al. 2020

Nanotechnology Reviews

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High molar mass materials (nano-silica slurry [NSS] and aggregate of steel furnace slag [ASFS]) can improve concrete shielding properties. However, only a few studies have been reported in this regard. Hence, this paper aims to determine the effect of NSS and ASFS on the properties of the resulting steel slag heavyweight concrete (SSHWC). The use of NSS in this study is a novel contribution. Furthermore, the maximum percentage of NSS to be introduced into the concrete for maximum effect was also optimized. This study also implemented an investigation program with six concrete mixtures prepared using ASFS as the primary by-product aggregate. The engineering, X-ray, and γ-ray attenuation characteristics of the SSHWC were evaluated. The results showed that the addition of NSS in SSHWC at the optimal content of 3% by weight of cement improved the X-ray shielding by 6.4%. Besides, all the concrete’s engineering and γ-rays’ properties were enhanced correspondingly.

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Section: γ-Ray Radiation Shieldingmentioning

confidence: 97%

Effect of nano-silica slurry on engineering, X-ray, and γ-ray attenuation characteristics of steel slag high-strength heavyweight concrete

Cheah

Khalaf

Ramli

et al. 2020

Nanotechnology Reviews

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“…Which indicated a slightly improvement between 3-7%. [8,9] Furthermore, addition of barite will increase the attenuation coefficient of concrete [9]. From that it could be concluded that the addition of oxides and iron slag increased the physical properties in addition to radiation shielding.…”

Section: Introductionmentioning

confidence: 95%

Evaluation of X-Ray Radiation Shielding of Concrete With Two Polymeric Additives

Arbilei¹,

Hamed²

2019

JEASD

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The safety factor is the most important point to consider when using medical radiology, as the walls of X-ray rooms must be immune to the radiation at a safe level. The insulations that are currently used in large rooms in the radiation is a lead substance and because of this substance of toxic effects on the human was only touch or inhalation of its evaporation.So Our research is aimed at reducing the amount of lead used by increasing the susceptibility of the concrete wall to insulate the radiation by addition of two types of polymers Rheobuild 833 and Rheomac uw450 to the standard M15Mix IS-10262 concrete mixture for the construction of insulating walls using molds metals with dimensions (20,20,10) cm, and in quantities of (100, 200, 300) mg and evaluated to determine their susceptibility to radiation capture. The best isolating was found at the addition of 200 mg, with an improvement rate of 29% for the Rheobuild 833 polymer and 23% for the Rheomac uw450 polymer.

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“…5,6 High-density materials like concrete, which have effective shielding properties and are inexpensive and easy to fabricate, become weaker at elevated temperatures. [7][8][9][10][11] In attempts to replace toxic lead and lead oxide glasses, research on glasses doped with nontoxic high-impedance (high-Z) metal oxides have gained momentum in recent years. [12][13][14][15] The presence of oxides of low-Z elements like beryllium, lithium, and boron in glasses helps to slow down fast neutrons and capture slower neutrons.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)–bismuth oxide composites for X‐ray and γ‐ray shielding applications

Muthamma

Bubbly

Gudennavar

et al. 2019

J of Applied Polymer Sci

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Polymer composites, which are light in weight, cost effective, and less toxic, have potential applications in X-ray and γ-ray shielding and protection. In this work, we have explored the efficacy of poly(vinyl alcohol)-bismuth oxide composites as radiation shielding materials. Poly(vinyl alcohol) composites with different wt % (0-50) of bismuth were prepared by a simple solution casting technique. Structural and thermal characterization of these samples was carried out using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). TGA revealed the enhanced thermal stability of these composites. AC conductivity measurements and optical spectroscopy were used to analyze their electrical behavior. The composites showed low conductivity, and the energy gap obtained also showed their tendency to be insulators. The radiation attenuation properties were investigated using X-ray (5.895 and 6.490 keV) and γ-ray (59.54 and 662 keV) transmission measurements. The shielding efficiency of the composites increased with filler wt %. The 40 wt % composites exhibited mass attenuation coefficients of 122.68 and 93.02 cm 2 /g at photon energies of 5.895 and 6.490 keV, respectively, while the 50 wt % composites showed 1.57 and 0.092 cm 2 /g at photon energies of 59.54 and 662 keV, respectively. The effective atomic number quantifies the probability of interaction of radiation with matter. The effective atomic number of the composites calculated by the direct method was in good agreement with the theoretical value obtained from Auto-Zeff software.

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Gamma Ray Shielding Properties of Some Concrete Materials

Cited by 33 publications

References 3 publications

Effect of nano-silica slurry on engineering, X-ray, and γ-ray attenuation characteristics of steel slag high-strength heavyweight concrete

Effect of nano-silica slurry on engineering, X-ray, and γ-ray attenuation characteristics of steel slag high-strength heavyweight concrete

Evaluation of X-Ray Radiation Shielding of Concrete With Two Polymeric Additives

Poly(vinyl alcohol)–bismuth oxide composites for X‐ray and γ‐ray shielding applications

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