The shielding of γ-rays by concretes produced with barite

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

doi:10.1016/j.pnucene.2004.09.015

Cited by 176 publications

(70 citation statements)

References 5 publications

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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%

“…In general, it is speculated from the results of Fig. 4(a) that at higher w/cm ratio such as 0.6 produces a normal concrete having lower strength range (30)(31)(32)(33)(34)(35) and that may or may not affect the attenuation of the γ-rays. Further investigation on the effect of low concrete strength at high w/cm ratios on the attenuation of γ-rays is recommended.…”

Section: Resultsmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

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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“…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]. The effectiveness of the shielding material is determined by the interactions between the incident radiation and the atoms of the absorbing medium.…”

Section: Introduction:-mentioning

confidence: 99%

“…This equation may be cast into linear form, log I=log I 0 -μx ………. (2) The mass absorption coefficient, μ m defined as, μ m = μ/ρ μ m is measured in cm 2 /gm and ρ is particle density of absorber in gm/cm 3 .…”

Section: Introduction:-mentioning

confidence: 99%

Attenuation Coefficient of Reactive Powder Concrete Using Different Energies.

Majeed¹,

Naji²,

Mohammed³

et al. 2016

IJAR

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Linear and mass attenuation coefficient of reactive powder concrete (RPC) sample ( of compressive strength equal to 70 Mpa) using beta particles and gamma ray with different energies have been calculated as a function of the absorber thickness and energy. The attenuation coefficient were obtained using NaI(Tl) energy selective scintillation counter with 90 Sr/ 90 Y beta source having an energy rang from (0.546-2.274) MeV and gamma ray energies (0.569, 0.662, 1.063, 1.17 and 1.33) MeV . The attenuation coefficient usually depends upon the energy of radiations and nature of the material. The result represented in graphical forms. Exponential decay was observed. It is found that the capability of reactive powder concrete to absorber beta particles and gamma ray without any significant reduction in the compressive strength of the sample. That's mean it is useful to choice this sample for radiation shielding of gamma and beta raywith low thickness.Copy Right, IJAR, 2016,. All rights reserved.

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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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The shielding of γ-rays by concretes produced with barite

Cited by 176 publications

References 5 publications

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

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

Attenuation Coefficient of Reactive Powder Concrete Using Different Energies.

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

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