Measurements of neutron shielding properties of heavy concretes using a Cf-252 source

Mollah, Abdus Sattar; Ahmad, G.U.; Husain, Shakir

doi:10.1016/0029-5493(92)90199-6

Cited by 19 publications

(3 citation statements)

References 7 publications

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“…Gencel et al (2011) performed experimental measurements and simulations to obtain the gamma and neutron shielding properties of hematite concrete. Mollah et al (1992) investigated neutron shielding characteristics of heavy concretes produced by ilmenite and magnetite sand. Kase et al (2003) researched shielding properties of concrete samples comprise of about 80 percent by weight of oxygen and silicon.…”

Section: Introductionmentioning

confidence: 99%

Neutron shielding qualities and gamma ray buildup factors of concretes containing limonite ore

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Yıldız

Korkut

et al. 2015

Nuclear Engineering and Design

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Section: Introductionmentioning

confidence: 99%

Neutron shielding qualities and gamma ray buildup factors of concretes containing limonite ore

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Yıldız

Korkut

et al. 2015

Nuclear Engineering and Design

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“…Due to the increasing application of gamma rays in studying the biologically harmful effects, several studies have already been performed on the shielding properties of various materials (Mollah et al, 1992;Gökçe et al, 2018;Moharram et al, 2020). Among all materials, concrete is widely accepted as a shield against gamma radiation due to its high strength, acceptable density, and inexpensive design flexibility (Tekin et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Development of high-temperature heavy density dolerite concrete for 4th generation nuclear power plants

Khan

Malik²,

Yaqub³

et al. 2023

Front. Mater.

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This study examines the physical, mechanical, microstructural, and attenuation properties of high-density concrete exposed to temperatures ranging from 200°C to 1200°C. For this purpose, heavy-density concrete containing 25%, 50%, 75%, and 100% dolerite aggregates was developed and compared with three ordinary concrete mixes. Pre- and post-heated concrete specimens were evaluated for mass and density loss, compressive strength, rebound hammer, X-ray and gamma-ray attenuation, Half Value Layer (HVL), and Ten Value Layer (TVL) along with microstructural properties determined by scanning electron microscopy and Energy Dispersive X-ray. The results showed that the incorporation of 75% dolerite aggregate during pre- and post-heating yielded high compressive strength whereas low mass and density loss. The same mixture showed significant improvement in gamma ray shielding at all temperatures. The Half Value Layer and Ten Value Layer values showed a reduction in the thickness of concrete as a shield. It is recommended that dolerite heavy-density concrete is a potential radiation shield at high temperatures ranging from 200°C–1200°C in fourth-generation nuclear power plants.

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“…According to Lee,et al [14] the aggregate of concrete plays an essential role in modifying physical-mechanical properties of concrete; it also affect significantly shielding properties of concrete [2], [6], [15]. In general, a number of theoretical and experimental studies have been conducted on heavy concretes [16]- [21].…”

Section: Introductionmentioning

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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Measurements of neutron shielding properties of heavy concretes using a Cf-252 source

Cited by 19 publications

References 7 publications

Neutron shielding qualities and gamma ray buildup factors of concretes containing limonite ore

Neutron shielding qualities and gamma ray buildup factors of concretes containing limonite ore

Development of high-temperature heavy density dolerite concrete for 4th generation nuclear power plants

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

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