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Measurement of sample stage error motions in cone-beam X-ray computed tomography instruments by minimization of reprojection errors

Published

Author(s)

Massimiliano Ferrucci, Wim Dewulf, Alkan Donmez

Abstract

Reconstruction algorithms in X-ray computed tomography assume a particular geometrical alignment of the instrument components. Misalignments in the actual instrument contribute to errors in the reconstruction. In previous work, we present an object-based procedure to measure the instrument geometry at a single manipulator position of the sample rotation stage. Here, we present an object-based method to determine error motions of the sample stage manipulator in cone-beam X-ray computed tomography instruments. Results are compared to reference measurements performed using interferometers and electronic levels.
Citation
Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology
Volume
67

Keywords

X-ray computed tomography, dimensional metrology, calibration

Citation

Ferrucci, M. , Dewulf, W. and Donmez, A. (2022), Measurement of sample stage error motions in cone-beam X-ray computed tomography instruments by minimization of reprojection errors, Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology, [online], https://doi.org/10.1016/j.precisioneng.2020.09.004, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=930580 (Accessed May 19, 2022)
Created January 19, 2022