Characterisation of metallic powder impregnated pastes using polychromatic X-radiography
This article reports on the employment of X-radiography using the bremsstrahlung of a commercial broad-spectrum X-ray source to quantify the differences and relationships between complex materials of unknown composition. The materials examined were metallic powders embedded in a carrier paste. The resulting pseudo-signatures are transmission spectra over a range from 15 to 75 kV taken at 1 kV intervals, which were extracted from stacks of registered, field-flattened images. It is shown that it is possible to quantify differences between transmission spectra in order to differentiate between metallic powders used to impregnate the carrier paste.
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Document Type: Research Article
Affiliations: 1 Institute for the Environment, Physical Sciences and Applied Mathematics, Keele University, Staffordshire ST5 5BG, UK. p.w.haycockacad.keele.ac.uk
Publication date: October 1, 2008
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- Official Journal of The British Institute of Non-Destructive Testing - includes original research and devlopment papers, technical and scientific reviews and case studies in the fields of NDT and CM.
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