title: Polychromatic X-ray tomography: direct quantitative phase reconstruction.
abstract: We describe a direct quantitative phase reconstruction approach using an X-ray laboratory-based source. Using a single phase-contrast image from each tomographic projection we show that it is possible to modify the filter term in a filtered back projection reconstruction to take account of the broad spectrum from a laboratory source. The accessibility of conventional X-ray laboratory sources makes this method very useful for quantitative phase imaging of homogeneous and weakly absorbing objects.
authors.affiliation: Department of Physics, La Trobe University, Victoria 3086, Australia. b.arhatari@latrobe.edu.au
authors.forename: Benedicta D
authors.initials: BD
authors.lastname: Arhatari
authors.forename: Grant
authors.initials: G
authors.lastname: van Riessen
authors.forename: Andrew
authors.initials: A
authors.lastname: Peele
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D014056:Tomography, X-Ray / Q000295:instrumentation*