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      First point-spread function and x-ray phase-contrast imaging results with an 88-mm diameter single crystal

      1 , 2 , 2
      Review of Scientific Instruments
      AIP Publishing

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          Diffraction enhanced x-ray imaging.

          Diffraction enhanced imaging is a new x-ray radiographic imaging modality using monochromatic x-rays from a synchrotron which produces images of thick absorbing objects that are almost completely free of scatter. They show dramatically improved contrast over standard imaging applied to the same phantom. The contrast is based not only on attenuation but also the refraction and diffraction properties of the sample. This imaging method may improve image quality for medical applications, industrial radiography for non-destructive testing and x-ray computed tomography.
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            Noninterferometric Phase Imaging with Partially Coherent Light

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              Hard x-ray phase tomography with low-brilliance sources.

              We report on a method for tomographic phase contrast imaging of centimeter sized objects. As opposed to existing techniques, our approach can be used with low-brilliance, lab based x-ray sources and thus is of interest for a wide range of applications in medicine, biology, and nondestructive testing. The work is based on the recent development of a hard x-ray grating interferometer, which has been demonstrated to yield differential phase contrast projection images. Here we particularly focus on how this method can be used for tomographic reconstructions using filtered back projection algorithms to yield quantitative volumetric information of both the real and imaginary part of the samples's refractive index.
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                Author and article information

                Journal
                Review of Scientific Instruments
                Review of Scientific Instruments
                AIP Publishing
                0034-6748
                1089-7623
                July 2018
                July 2018
                : 89
                : 7
                : 073704
                Affiliations
                [1 ]Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
                [2 ]Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, USA
                Article
                10.1063/1.5027499
                dabb89b1-95d7-4453-97c4-8bd1eea9e2a9
                © 2018

                https://publishing.aip.org/authors/rights-and-permissions

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