Physicochemical and Radiation Hazardous Properties of Scale TENORM Waste: Evaluation by Different Analytical Techniques

Hilal, M.A.; Abdelbary, Hanan M.

doi:10.1134/s106636221804015x

Cited by 8 publications

(1 citation statement)

References 17 publications

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“…Quantification of heavy elements in samples is one of the most important subjects in analytical chemistry [1]. Substances that contain heavy elements are often toxic and hazardous; therefore, nondestructive methods to safely analyze such heavy elements confined in containers are desirable, such as in cargo security [2] and in analysis of polluted wastes, water and soils [3][4][5][6]. The X-ray computed tomography (CT) is one of useful methods for the nondestructive discrimination of heavy elements in samples [7].…”

Section: Introductionmentioning

confidence: 99%

Nondestructive Quantification of Heavy Elements Through the Analysis of Beam Hardening Artifacts Using Double-Exposure X-ray Computed Tomography: A Theoretical Consideration

Nakashima

Nakano

2020

Chemistry Africa

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We present a theoretical background for heavy element quantification through the intensive analysis of beam hardening (cupping artifacts) in X-ray computed tomography (CT) images. Cupping artifacts resulting from X-ray CT using a polychromatic X-ray source are quantitatively analyzed with an analytical solution for a cylindrical sample of a homogeneous aqueous solution/suspension containing a heavy element. The theoretical solution reveals that the severity of cupping artifacts is strongly dependent on the sample chemistry and the acceleration voltage of the X-ray tube. Careful analysis of this dependency enabled simultaneous determination of the atomic number and molar concentration of the heavy element within a particular estimation error range. Significant improvement in terms of the accuracy of determining the atomic number was achieved by employing double-exposure X-ray CT.

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