In X-ray computed tomography (CT), measurement accuracy and image quality are strongly affected by the presence of geometrical misalignments and/or the wrong estimation of CT system geometry . In this work, the effects of detector misalignment are experimentally investigated. CT measurements of a calibrated ball bar were acquired first with the system aligned according to the manufacturer’s guidelines, and then after that the flat-panel detector was physically misaligned. The experimental results were compared to show the effects of detector misalignment on CT measurement errors.

Experimental investigation on the influence of detector misalignment on X-ray CT measurement accuracy

Aloisi Valentina
;
Carmignato Simone;Savio Enrico
2017

Abstract

In X-ray computed tomography (CT), measurement accuracy and image quality are strongly affected by the presence of geometrical misalignments and/or the wrong estimation of CT system geometry . In this work, the effects of detector misalignment are experimentally investigated. CT measurements of a calibrated ball bar were acquired first with the system aligned according to the manufacturer’s guidelines, and then after that the flat-panel detector was physically misaligned. The experimental results were compared to show the effects of detector misalignment on CT measurement errors.
2017
Proceedings of the 17th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2017
9780995775107
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3254432
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