title: Phase-contrast microscopy at high x-ray energy with a laboratory setup.
abstract: We report on the design and realization of an x-ray imaging system for quantitative phase-contrast microscopy at high x-ray energy with laboratory-scale instrumentation. Phase and amplitude were separated quantitatively at x-ray energies up to 80 keV with micrometric spatial resolution. The accuracy of the results was tested against numerical simulations, and the spatial resolution was experimentally quantified by measuring a Siemens star phase object. This simple setup should find broad application in those areas of x-ray imaging where high energy and spatial resolution are simultaneously required and in those difficult cases where the sample contains materials with similar x-ray absorption.
authors.forename: Marco
authors.initials: M
authors.lastname: Endrizzi
authors.forename: Fabio A
authors.initials: FA
authors.lastname: Vittoria
authors.forename: Paul C
authors.initials: PC
authors.lastname: Diemoz
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Lorenzo
authors.forename: Robert D
authors.initials: RD
authors.lastname: Speller
authors.forename: Ulrich H
authors.initials: UH
authors.lastname: Wagner
authors.forename: Christoph
authors.initials: C
authors.lastname: Rau
authors.forename: Ian K
authors.initials: IK
authors.lastname: Robinson
authors.forename: Alessandro
authors.initials: A
authors.lastname: Olivo
mesh_terms: D004867:Equipment Design; D008858:Microscopy, Phase-Contrast / Q000295:instrumentation* / Q000379:methods; D055620:Optical Phenomena; D014965:X-Rays