Articular cartilage depicted at optimized angular position of Laue angular analyzer by X-ray dark-field imaging. Clinical step onward with X-ray dark-field imaging and perspective view of medical applications of synchrotron radiation in Japan. X-ray imaging with ultra-small-angle X-ray scattering as a contrast mechanism. A method to extract quantitative information in analyzer-based X-ray phase contrast imaging. Dark-field imaging in hard X-ray scanning microscopy. A characterisation of dark-field imaging of colloidal gold labels in a scanning transmission X-ray microscope. Dark-field imaging with the scanning-transmission X-ray microscope. Phase retrieval and differential phase-contrast imaging with low-brilliance X-ray sources. Quantitative X-ray phase imaging with a grating interferometer. Phase tomography by X-ray Talbot interferometry for biological imaging. Momose, A., Yashiro, W., Takeda, Y., Suzuki, Y. Phase-contrast imaging using polychromatic hard X-rays. On the possibilities of X-ray phase contrast microimaging by coherent high-energy synchrotron radiation. Snigirev, A., Snigireva, I., Kohn, V., Kuznetsov, S. X-ray plane-wave topography observation of the phase contrast from non-crystalline objects. Phase-contrast imaging of weakly absorbing materials using hard X-rays. An X-ray interferometer with long separated interfering beam paths. Fundamentals of Light Microscopy and Electronic Imaging (Wiley, New York, 2001).īonse, U. Applications to X-ray medical imaging, industrial non-destructive testing and security screening are discussed. Our approach is fully compatible with conventional transmission radiography and a recently developed hard-X-ray phase-contrast imaging scheme 11. Because the image contrast is formed through the mechanism of small-angle scattering, it provides complementary and otherwise inaccessible structural information about the specimen at the micrometre and submicrometre length scale. In this letter, we report a new approach on the basis of a grating interferometer that can efficiently yield dark-field scatter images of high quality, even with conventional X-ray tube sources. Although X-ray phase-contrast imaging could successfully be implemented at a relatively early stage with several techniques 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, dark-field imaging, or more generally scattering-based imaging, with hard X-rays and good signal-to-noise ratio, in practice still remains a challenging task even at highly brilliant synchrotron sources 12, 13, 14, 15, 16, 17, 18. X-ray imaging, on the other hand, has only recently seen the development of an analogous variety of contrast modalities. Imaging with visible light today uses numerous contrast mechanisms, including bright- and dark-field contrast, phase-contrast schemes and confocal and fluorescence-based methods 1.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |