title: A robust tool for photon source geometry measurements using the fractional Talbot effect.
abstract: A reliable measurement of beam coherence is important for optimal performance of a number of coherence methods being utilized at third-generation synchrotrons and free-electron lasers. Various approaches have been proposed in the past for determining the source size, and hence the degree of coherence; however they often require complex setups with perfect optics and suffer from undefined uncertainties. We present a robust tool for X-ray source characterization with a full quantitative uncertainty analysis for fast on-the-fly coherence measurements. The influence of three multilayer monochromator crystals on the apparent source size is evaluated using the proposed method.
authors.forename: Goran
authors.initials: G
authors.lastname: Lovric
authors.forename: Peter
authors.initials: P
authors.lastname: Oberta
authors.forename: Istvan
authors.initials: I
authors.lastname: Mohacsi
authors.forename: Marco
authors.initials: M
authors.lastname: Stampanoni
authors.forename: Rajmund
authors.initials: R
authors.lastname: Mokso
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D008027:Light; D008029:Lighting / Q000379:methods*; D008962:Models, Theoretical; D017785:Photons; D012542:Scattering, Radiation; D014965:X-Rays