Articles with "ray attenuation" as a keyword



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Synthesis, characterization, and X-ray attenuation properties of polyacrylic acid-coated ultrasmall heavy metal oxide (Bi2O3, Yb2O3, NaTaO3, Dy2O3, and Gd2O3) nanoparticles as potential CT contrast agents

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Published in 2019 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"

DOI: 10.1016/j.colsurfa.2019.05.033

Abstract: Abstract Ultrasmall heavy metal oxide nanoparticles are potential candidate materials for X-ray computed tomography (CT) contrast agents because they possess high X-ray attenuation powers owing to high X-ray attenuation coefficients of heavy metal atoms and… read more here.

Keywords: contrast; ray attenuation; heavy metal; coated ultrasmall ... See more keywords

Experimental gamma-ray attenuation and theoretical optimization of barite concrete mixtures with nanomaterials against neutrons and gamma rays

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Published in 2021 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2021.123190

Abstract: Abstract In this study, experimental and theoretical work on barite concrete with nanomaterials against gamma and neutron radiations were implemented. Besides density, radiation energy, and the type of aggregate, which are the main variables in… read more here.

Keywords: barite concrete; optimization; ray attenuation; attenuation ... See more keywords
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Development of high-density radiation shielding materials containing BaSO4 and investigation of the gamma-ray attenuation properties

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Published in 2021 at "Radiation Physics and Chemistry"

DOI: 10.1016/j.radphyschem.2021.109772

Abstract: Abstract The high-density shielding materials containing higher percentage (>80%) of BaSO4 have been developed and their gamma-ray attenuation parameters have been investigated. Three samples have been prepared [Sample-1 ( 83.75 % ) , Sample-2 (… read more here.

Keywords: gamma ray; high density; density; ray attenuation ... See more keywords
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Spectral Computed Tomography: Fundamental Principles and Recent Developments

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Published in 2020 at "Korean Journal of Radiology"

DOI: 10.3348/kjr.2020.0144

Abstract: CT is a diagnostic tool with many clinical applications. The CT voxel intensity is related to the magnitude of X-ray attenuation, which is not unique to a given material. Substances with different chemical compositions can… read more here.

Keywords: spectral computed; computed tomography; energy; ray attenuation ... See more keywords