Polychromatic cone-beam phase-contrast tomography
نویسندگان
چکیده
منابع مشابه
3D Algebraic Iterative Reconstruction for Cone-Beam X-Ray Differential Phase-Contrast Computed Tomography
Due to the potential of compact imaging systems with magnified spatial resolution and contrast, cone-beam x-ray differential phase-contrast computed tomography (DPC-CT) has attracted significant interest. The current proposed FDK reconstruction algorithm with the Hilbert imaginary filter will induce severe cone-beam artifacts when the cone-beam angle becomes large. In this paper, we propose an ...
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X-ray computed tomography (XCT) with cone beam geometry has become a very important method for non-destructive 3D-characterisation and evaluation of materials. Compact XCT systems can reach resolutions down to 1 μm and even below. However, the polychromatic nature of the source, limited photon flux and the consequent long measurement times as well as all kinds of measurement artifacts lead to l...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2007
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.76.045804