Dual-energy Computer Tomography and Digital Radiography Applications in Non-destructive Control of Materials
- University of Bucharest, Department of Atomic and Nuclear Physics, P.O. Box MG-11, 077125 Bucharest (Romania)
- Accent Pro 2000, Ltd, 1, Nerva Traian Str., K6, 031041, Bucharest (Romania)
- The Politehnica University, Bucharest, 313, Splaiul Independentei, 060032, Bucharest (Romania)
A multi-purpose home-made dual energy computer have been used to investigate a great diversity of object of scientific interest such as polymers containing variable proportion of fluor and sulfur, fragments of wood, sedimentary cores, as well as various rocks. By using a dedicated version of filtered back-projection algorithm as well as a set of standard samples it was possible to determine both density and effective atomic number distribution over any section (planar or volumic) of investigated objects. In all cases, the maximum precision in determining the local density was about 3.5 % while effective atomic numbers were calculated with an accuracy of 2%. At the same time, the spatial resolution of reconstructed tomographies was about 0.5 mm, while the analyses of images histograms allowed a better quantitative characterization of their internal composition.
- OSTI ID:
- 21057177
- Journal Information:
- AIP Conference Proceedings, Vol. 899, Issue 1; Conference: 6. international conference of the Balkan Physical Union, Istanbul (Turkey), 22-26 Aug 2006; Other Information: DOI: 10.1063/1.2733224; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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