Suppression of ring artefacts when tomographing anisotropically attenuating samples

S. Titarenko, V. Titarenko, A. Kyrieleis, P. Withers and F. De Carlo

An intensity normalization technique is proposed to suppress ring artefacts of varying strength. The method was applied to an elongated sample in a monochromatic beam and to a sample with highly attenuated parts in a white beam.

Keywords: X-ray absorption computerized tomography; laterally extended objects; ring artefacts; filtered back-projection; inverse problem; laminography.

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