Photon attenuation coefficients of concrete includes barite in different rate

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

doi:10.1016/j.anucene.2010.04.001

Cited by 291 publications

(89 citation statements)

References 27 publications

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“…3, that the linear attenuation coefficient increases with the increasing density of the concretes and when attenuation coefficient increases, the HVL and TVL values decrease for both gamma energies. These results are supported by other reports [3,4,7,9]. The most common materials used for shielding are ordinary concrete, barite concrete, high-density concrete, steel, and lead [9].…”

Section: Resultssupporting

confidence: 81%

“…The measurements have been performed at photon energy of 1173 and 1332 keV, produced by Cobalt-60 radioactive source [6,7].…”

Section: Methodsmentioning

confidence: 99%

“…For this purpose concretes with densities in five different ranges were selected, densities between 600-1500 kg/m 3 , called lightweight concrete (LC), 1400-2000 kg/m 3 , called semi lightweight concrete (SLC), 2000-2500 kg/m 3 , called ordinary concrete (OC), 2500-3000 kg/m 3 semi heavyweight concrete (SHC), 3000-4000 kg/m 3 called heavyweight concrete (HC), respectively. For evaluated TVL and HVL thicknesses, the linear attenuation coefficients µ, were determined from measurements, using a collimated beam of gamma rays from a Cobalt-60 source [6,7].…”

Section: Introductionmentioning

confidence: 99%

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Determination of the Tenth and Half Value Layer Thickness of Concretes with Different Densities

Akkaş

2016

Acta Phys. Pol. A

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Half value layer (HVL) is the most frequently used quantitative factor for describing both the penetrating ability of specific radiations and the penetration through specific objects. The half value layers (HVL) and tenth value layers (TVL) are defined as the thickness of a shield or an absorber that reduces the radiation level by a factor of one-half and one tenth of the initial level, respectively. The concepts of HVL and TVL are widely used in shielding design. They are photon energy dependent, like the attenuation coefficient. HVL and TVL values provide useful information about the penetration of a specific radiation in a specific material. In this study, TVL and HVL thickness are calculated for concretes with different densities. For this purpose five types of concrete with different density ranges were selected, with densities between 600-1500 kg/m 3 , called lightweight concrete, 1400-2000 kg/m 3 , called semi lightweight concrete, 2000-2500 kg/m 3 called ordinary concrete, 2500-3000 kg/m 3 , semi heavyweight concrete and 3000-4000 kg/m 3 called heavyweight concrete, respectively. For evaluated TVL and HVL thicknesses, the linear attenuation coefficients µ, were determined from measurements, using a collimated beam of gamma rays from a Cobalt-60 source.

show abstract

Section: Resultssupporting

confidence: 81%

“…The measurements have been performed at photon energy of 1173 and 1332 keV, produced by Cobalt-60 radioactive source [6,7].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Determination of the Tenth and Half Value Layer Thickness of Concretes with Different Densities

Akkaş

2016

Acta Phys. Pol. A

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“…Properties of materials used in construction of buildings are important for both the durability and to carry architectural culture to next generation [1,2]. The pumice, formed after volcanic event, has a lot of cavities.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Properties of Foam Concretes Produced Using Pumice at Different Ratios

et al. 2017

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Foam concrete is a type of light weight concrete having self-compacting properties. It can be obtained by mixing the foam, formed by the foaming agent, with a mixture consisting of cement, water and aggregate. It contains independent closed pores with a volume of 75-80% within its body. In this study, three series of foam concrete were produced using different ratio of pumice. Compressive strength, splitting tensile strength and thermal conductivity of foam concrete samples were determined for each density set. It is found that, pumice ratio has a linear relationships with dry bulk density, compressive strength, tensile strength and thermal conductivity. It can also be concluded that strong relationship exist between higher correlation coefficients and pumice ratio.

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“…Half-value layer (HVL), tenth-value layer (TVL), and mean free path (mfp) are the additional parameters that are calculated for gamma-ray shielding. The HVL represents the thickness of an absorber that will reduce the gamma radiation to half, while the TVL represents the thickness of an absorber that will reduce the gamma radiation to a tenth of its original intensity [15]. Mean free path is the average distance that the gammaray travels between interactions.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo Calculations for Photon Attenuation Studies on Different Solid Phantom Materials

2017

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The linear attenuation coefficients of water and some solid phantom materials, namely of solid water RMI-457, of plastic water, of RW3 solid water, and of Perspex were determined by Monte Carlo calculations, for gammaray photons with energies of 59.5, 80.9, 140.5, 356.5, 661.6, 1173.2, and 1332.5 keV. The calculated values were compared with the experimental results presented by other researchers and with theoretical values obtained using the XCOM database. Good agreement was observed between the calculations, the experimental, and the theoretical values. The results indicate that the process in Monte Carlo code can be followed to determine the equivalency of other materials at several energies. Three shielding factors such as half-value layer, tenth-value layer, and mean free path were calculated at all considered gamma-ray energies.

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Photon attenuation coefficients of concrete includes barite in different rate

Cited by 291 publications

References 27 publications

Determination of the Tenth and Half Value Layer Thickness of Concretes with Different Densities

Determination of the Tenth and Half Value Layer Thickness of Concretes with Different Densities

Investigation of Properties of Foam Concretes Produced Using Pumice at Different Ratios

Monte Carlo Calculations for Photon Attenuation Studies on Different Solid Phantom Materials

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