title: High spectral and spatial resolution X-ray transmission radiography and tomography using a Color X-ray Camera.
abstract: High resolution X-ray radiography and computed tomography are excellent techniques for non-destructive characterization of an object under investigation at a spatial resolution in the micrometer range. However, as the image contrast depends on both chemical composition and material density, no chemical information is obtained from this data. Furthermore, lab-based measurements are affected by the polychromatic X-ray beam, which results in beam hardening effects. New types of X-ray detectors which provide spectral information on the measured X-ray beam can help to overcome these limitations. In this paper, an energy dispersive CCD detector with high spectral resolution is characterized for use in high resolution radiography and tomography, where a focus is put on the experimental conditions and requirements of both measurement techniques.
authors.affiliation: Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium.
authors.forename: Matthieu N
authors.initials: MN
authors.lastname: Boone
authors.affiliation: Ghent University, Dept. Analytical Chemistry, Krijgslaan 281/S12; B-9000 Gent, Belgium.
authors.forename: Jan
authors.initials: J
authors.lastname: Garrevoet
authors.affiliation: Ghent University, Dept. Analytical Chemistry, Krijgslaan 281/S12; B-9000 Gent, Belgium.
authors.forename: Pieter
authors.initials: P
authors.lastname: Tack
authors.affiliation: IfG-Institute for Scientific Instruments GmbH, Rudower Chaussee 29/31; D-12489 Berlin, Germany.
authors.forename: Oliver
authors.initials: O
authors.lastname: Scharf
authors.affiliation: University of Pennsylvania, Depts. Radiology, Cardiology and Bioengineering, O3400 Spruce St, 1 Silverstein; Philadelphia, PA 19104, USA.
authors.forename: David P
authors.initials: DP
authors.lastname: Cormode
authors.affiliation: Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium.
authors.forename: Denis
authors.initials: D
authors.lastname: Van Loo
authors.affiliation: Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium.
authors.forename: Elin
authors.initials: E
authors.lastname: Pauwels
authors.affiliation: Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium.
authors.forename: Manuel
authors.initials: M
authors.lastname: Dierick
authors.affiliation: Ghent University, Dept. Analytical Chemistry, Krijgslaan 281/S12; B-9000 Gent, Belgium.
authors.forename: Laszlo
authors.initials: L
authors.lastname: Vincze
authors.affiliation: Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium.
authors.forename: Luc
authors.initials: L
authors.lastname: Van Hoorebeke
keywords: Color X-ray Camera; Computed tomography; Spectral X-ray imaging; pnCCD