scholarly journals Analytical expressions for the reconstructed image of a homogeneous cylindrical sample exhibiting a beam hardening artifact in X-ray computed tomography

2018 ◽  
Vol 26 (5) ◽  
pp. 691-705 ◽  
Author(s):  
Tsukasa Nakano ◽  
Yoshito Nakashima
Keyword(s):  
Computed Tomography ◽  
Cylindrical Sample ◽  
Reconstructed Image ◽  
Beam Hardening ◽  
X Ray ◽  
X Ray Computed ◽  
Analytical Expressions

scholarly journals OBSERVATIONS ON THE PERFORMANCE OF X-RAY COMPUTED TOMOGRAPHY FOR DIMENSIONAL METROLOGY

2016 ◽  
Vol XLI-B5 ◽  
pp. 25-31
Author(s):  
H. C. Corcoran ◽  
S. B. Brown ◽  
S. Robson ◽  
R. D. Speller ◽  
M. B. McCarthy
Keyword(s):  
Computed Tomography ◽  
Reverse Engineering ◽  
X Rays ◽  
Dimensional Metrology ◽  
Beam Hardening ◽  
X Ray ◽  
Accuracy And Precision ◽  
Dimensional Measurements ◽  
X Ray Computed

X-ray computed tomography (XCT) is a rising technology within many industries and sectors with a demand for dimensional metrology, defect, void analysis and reverse engineering. There are many variables that can affect the dimensional metrology of objects imaged using XCT, this paper focusses on the effects of beam hardening due to the orientation of the workpiece, in this case a holeplate, and the volume of material the X-rays travel through. Measurements discussed include unidirectional and bidirectional dimensions, radii of cylinders, fit point deviations of the fitted shapes and cylindricity. Results indicate that accuracy and precision of these dimensional measurements are affected in varying amounts, both by the amount of material the X-rays have travelled through and the orientation of the object.

X-ray computed tomography: Practical evaluation of beam hardening in iron ore samples

2019 ◽  
Vol 131 ◽  
pp. 206-215 ◽  
Author(s):  
Lunga Cleartone Bam ◽  
Jodie Ann Miller ◽  
Megan Becker ◽  
Ian James Basson
Keyword(s):  
Computed Tomography ◽  
Iron Ore ◽  
Beam Hardening ◽  
X Ray ◽  
Practical Evaluation ◽  
X Ray Computed
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