title: X-ray phase-contrast microscopy and microtomography.
abstract: In-line phase contrast enables weakly absorbing specimens to be imaged successfully with x-rays, and greatly enhances the visibility of fine scale structure in more strongly absorbing specimens. This type of phase contrast requires a spatially coherent beam, a condition that can be met by a microfocus x-ray source. We have developed an x-ray microscope, based on such a source, which is capable of high resolution phase-contrast imaging and tomography. Phase retrieval enables quantitative information to be recovered from phase-contrast microscope images of homogeneous samples of known composition and density, and improves the quality of tomographic reconstructions.
authors.forename: S
authors.initials: S
authors.lastname: Mayo
authors.forename: T
authors.initials: T
authors.lastname: Davis
authors.forename: T
authors.initials: T
authors.lastname: Gureyev
authors.forename: P
authors.initials: P
authors.lastname: Miller
authors.forename: D
authors.initials: D
authors.lastname: Paganin
authors.forename: A
authors.initials: A
authors.lastname: Pogany
authors.forename: A
authors.initials: A
authors.lastname: Stevenson
authors.forename: S
authors.initials: S
authors.lastname: Wilkins