title: Framework for computing the spatial coherence effects of polycapillary x-ray optics.
abstract: Despite the extensive use of polycapillary x-ray optics for focusing and collimating applications, there remains a significant need for characterization of the coherence properties of the output wavefield. In this work, we present the first quantitative computational method for calculation of the spatial coherence effects of polycapillary x-ray optical devices. This method employs the coherent mode decomposition of an extended x-ray source, geometric optical propagation of individual wavefield modes through a polycapillary device, output wavefield calculation by ray data resampling onto a uniform grid, and the calculation of spatial coherence properties by way of the spectral degree of coherence.
authors.affiliation: Department of Biomedical Engineering, Medical Imaging Research Center, Illinois Institute of Technology, 3440 South Dearborn Street, Suite 100, Chicago, Illinois 60616, USA.
authors.forename: Adam M
authors.initials: AM
authors.lastname: Zysk
authors.forename: Robert W
authors.initials: RW
authors.lastname: Schoonover
authors.forename: Qiaofeng
authors.initials: Q
authors.lastname: Xu
authors.forename: Mark A
authors.initials: MA
authors.lastname: Anastasio
mesh_terms: D003198:Computer Simulation; D055095:Optics and Photonics; D014965:X-Rays