Utilization of ilmenite/epoxy composite for neutrons and gamma rays attenuation

Abdo, A. El‐Sayed; El-Sarraf, M.A.; Gáber, Fanni

doi:10.1016/s0306-4549(02)00052-x

Cited by 58 publications

(21 citation statements)

References 6 publications

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“…On the other hand as the IEMR energy increased this performance increment became ineffective on the l L values of the composites. The insignificantly increment of l L values in high energy region can be attributed to several Compton scatterings beside the increasing interaction character of pair production [14]. The same behaviors of the l L values were also observed at the previous studies [7].…”

Section: Iemr Attenuation Performances Of the Compositessupporting

confidence: 81%

Usability of natural titanium-iron oxide as filler material for ionizing electromagnetic radiation shielding composites; preparation, characterization and performance

Belgin

Ayçık

Kalemtaş

et al. 2015

J Radioanal Nucl Chem

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In the study, usability of natural titanium-iron oxide filler for ionizing electromagnetic radiation (IEMR) shielding composites with isophthalic polyester (PES) matrix was investigated for the first time. Shielding performances of the composites were also investigated for three different IEMR energy regions as low, intermediate and high for the first time, too. Mass attenuation coefficient of prepared composite with the best shielding performance reached 80 % of elemental lead's performance at low energy regions while it had higher mass attenuation coefficient at intermediate and high energies.

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Section: Iemr Attenuation Performances Of the Compositessupporting

confidence: 81%

Usability of natural titanium-iron oxide as filler material for ionizing electromagnetic radiation shielding composites; preparation, characterization and performance

Belgin

Ayçık

Kalemtaş

et al. 2015

J Radioanal Nucl Chem

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“…The attenuation curves show the gamma ray count rate to decrease exponentially with increase in composite thicknesses. Table (2) shows the mass attenuation coefficients values µ/ρ (cm 2 •g -1 ) which are carried out by the experimental evaluation using linear attenuation coefficient µ (cm -1 ) obtained from figure(2) and the two calculation methods for the three energy lines. It is shown that, a reasonable agreement could be observed between the experimentally evaluated and the theoretically computed results.…”

Section: Resulta and Discussionmentioning

confidence: 99%

“…By using the experimentally determined and the WinXcom theoretically calculated values of µ/ρ, the effective atomic numbers (Z eff ) and electron number densities (N el ) have been evaluated using equations (6) and (7) respectively and are presented in table (2). It is observed that both experimental and theoretical data are very close and the variation with photon energy is very modest for this narrow photon energy region.…”

Section: Resulta and Discussionmentioning

confidence: 99%

“…Recent research is concerned with the creation of polymeric composite with many difficult-to-attain utility properties, as well as, radiation attenuation capabilities. Epoxy filled with ilmenite formulation had been prepared to be used for various radiation shielding purposes and as restoration mortar for nuclear facilities biological concrete shield structures [1,2]. The study of parameters, such as, mass attenuation coefficient (cm 2 •g -1 ), effective atomic number Z eff and electronic density N el is of prime importance in characterization of shielding materials.…”

Section: Introductionmentioning

confidence: 99%

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Studying Gamma-Ray Attenuation Parameters for Epoxy/Ilmenite Restoration Mortar

Sarraf¹,

Megahid²,

Kansouh³

2018

IJASTR

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This paper demonstrates on evaluation of mass attenuation coefficient, effective atomic number and electronic density for Epoxy/Ilmenite EP/Il (ρ = 2.51 gm / cm3) composite of radiation shielding potential required for radiological safety. Narrow beam gamma-ray transmission geometry was used for the experimental evaluation of mass attenuation coefficient (cm2•g-1). The source term was the radioactive sources Cs-137 and Co-60; the detection term was the NaI(Tl) scintillation detector. The obtained linear attenuation coefficients from the experimental results were divided by their associated density values to get (μ/ρ) for the composite. In addition; WinXcom program, as well as, MCNP5 code were used to calculate those parameters theoretically for reasons of comparison and confirmation. The parameters, effective atomic number Zeff and electronic density Nel were experimentally evaluated and theoretically calculated using the first computational tool. In general, good agreement has been observed between experimental and theoretical methods within uncertainties.

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“…With judicious choice of heavy mineral or metal fillers, gamma rays and X-rays could be also shielded. Therefore, the hematite mineral (which is well known for its high attenuating properties) was incorporated as an aggregate to obtain epoxy-hematite concretes developed for biological concrete shields as well as for neutrons and gamma rays attenuation [9]. To provide sufficient shielding, effects of irradiation on polymers need to be known; some literature on this subject exists [10][11][12][13][14].…”

Section: W£aoeciwooeci Mechaniczne Betonów Polimerowych Zawieraj¥cychmentioning

confidence: 99%

Mechanical properties of polymer concretes containing different amount of hematite or colemanite

et al. 2012

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Mechanical properties of polymer concretes containing different amount of hematite or colemanite Summary-Polymer concretes (PCs) were created by using varying concentrations of silica sand as aggregate and also hematite, colemanite and a commercial epoxy resin. Hematite is known to exhibit radiation shielding properties. Mechanical performance was evaluated including unit weight, pulse velocity, compressive strength, flexural strength, splitting tensile strength, modulus of elasticity and dynamic elastic modulus. As expected, mechanical properties depend on the resin concentration, the aggregate type and aggregate content in the mixture. Hematite particles have a larger effect than colemanite on mechanical properties of PCs. Inclusion of hematite provides significant improvement of the mechanical properties studied PCs in comparison to PC with silica sand only.

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Utilization of ilmenite/epoxy composite for neutrons and gamma rays attenuation

Cited by 58 publications

References 6 publications

Usability of natural titanium-iron oxide as filler material for ionizing electromagnetic radiation shielding composites; preparation, characterization and performance

Usability of natural titanium-iron oxide as filler material for ionizing electromagnetic radiation shielding composites; preparation, characterization and performance

Studying Gamma-Ray Attenuation Parameters for Epoxy/Ilmenite Restoration Mortar

Mechanical properties of polymer concretes containing different amount of hematite or colemanite

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