Radiation shielding of concretes containing different aggregates

Akkurt, I.; Başyiğit, Celalettin; Kılınçarslan, Şemsettin; Mavı, B.; Akkurt, Adnan

doi:10.1016/j.cemconcomp.2005.09.006

Cited by 278 publications

(82 citation statements)

References 8 publications

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“…Already some calculations and investigations on shielding (mainly against gamma rays) has been made. Akkurt et al [17] proved that the type of the aggregate is more important than the amount of aggregate for gamma ray shielding and the barite-loaded concretes would be preferred for this purpose. Sato et al [18] proposed for a radioactive waste management a multilayered concrete structures with boron-doped low activation concrete wall.…”

Section: Shielding Concrete Optimizationmentioning

confidence: 99%

Monte Carlo simulations for optimization of neutron shielding concrete

et al. 2012

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Concrete is one of the main materials used for gamma and neutron shielding. While in case of gamma rays an increase in density is usually efficient enough, protection against neutrons is more complex. The aim of this paper is to show the possibility of using the Monte Carlo codes for evaluation and optimization of concrete mix to reach better neutron shielding. Two codes (MCNPX and SPOT -written by authors) were used to simulate neutron transport through a wall made of different concretes. It is showed that concrete of higher compressive strength attenuates neutrons more effectively. The advantage of heavyweight concrete (with barite aggregate), usually used for gamma shielding, over the ordinary concrete was not so clear. Neutron shielding depends on many factors e.g. neutron energy, barrier thickness and atomic composition. All this makes a proper design of concrete as a very important issue for nuclear power plant safety assurance.

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Section: Shielding Concrete Optimizationmentioning

confidence: 99%

Monte Carlo simulations for optimization of neutron shielding concrete

et al. 2012

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“…The linear and mass attenuation coefficients (μ) for all the three HPC series were measured at photon energy of 0.663 MeV and compared with the results which available in the literature [8], [9], [15]- [17], [22], [31]. The measured results are listed in Table III. It can be seen that the highest mass attenuation coefficient values at 0.663 MeV γ-ray energy obtained from heavy HPCs (BR and HM) and they are close to X-ray mass attenuation coefficient values of NIST [22].…”

Section: Resultsmentioning

confidence: 99%

Effect of Compressive Strength on γ-Radiation Attenuation Coefficients for High Performance Concrete

Al-Humaiqani¹

2013

IJET

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Abstract-An experimental investigation of radiation shielding properties of high performance concretes (HPCs) was mad under effect of different variables. HPCs were produced from different normal and heavyweight aggregate with three low water-to-cementitious materials ratios (w/cm) to obtain different compressive strengths. The linear attenuation coefficients were measured at 0.663 MeV γ-rays energy of 137 Cs radioactive using NaI (Tl) scintillation detector. It was found that the compressive strength of heavyweight HPCs plays an important role in enhancing the attenuation of γ-rays. The compressive strength and attenuation of γ-rays have a near to linear relation. While in the normal concrete, the strength has no effect on the attenuation of γ-radiation. The mass attenuation coefficients were also compared with the values obtained by the United States National Institute of Standards and Technology (NIST). The comparison showed a reasonable agreement. It was observed that the attenuation of γ-rays is considerably affected by concrete density.Index Terms-High performance concrete, γ-attenuation coefficients, aggregate types, compressive strength, water-to-cementatious materials ratio.

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“…Beside nuclear facilities (nuclear reactors and particle accelerators), with the increasing use of radiation in medicine, the provision of adequate protection remains an important concern [1][2][3]. One area of significance is analysis of concrete characteristics as the shielding of 0.511 MeV (positron emission tomography (PET) radiation source) and 0.622 MeV gamma rays (cesium 137 Cs).…”

Section: Introductionmentioning

confidence: 99%

Gamma Radiation Absorption Characteristics of Concrete with Components of Different Type Materials

et al. 2010

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Nuclear facilities as nuclear power stations, nuclear research reactors, particle accelerators and linear accelerator in medical institution using concrete in building construction. The different type materials of the aggregate as component of concrete were analyzed to provide radiation protection. The energy deposited the transmission factor and the mass attenuation coefficients in ordinary and barite concretes have been calculated with the photon transport Monte Carlo software. The numerical simulations results show that using barite as an aggregate in the concrete is one of the solutions for gamma ray shielding. Thereat, it is shown non-destructive method for determining the gamma radiation absorption characteristics of concrete.

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Radiation shielding of concretes containing different aggregates

Cited by 278 publications

References 8 publications

Monte Carlo simulations for optimization of neutron shielding concrete

Monte Carlo simulations for optimization of neutron shielding concrete

Effect of Compressive Strength on γ-Radiation Attenuation Coefficients for High Performance Concrete

Gamma Radiation Absorption Characteristics of Concrete with Components of Different Type Materials

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