Holotomography: Quantitative phase tomography with micrometer resolution using hard synchrotron radiation x rays

DOI PDF 被引用文献34件
  • P. Cloetens
    European Synchrotron Radiation Facility (ESRF), F-38043 Grenoble, France
  • W. Ludwig
    European Synchrotron Radiation Facility (ESRF), F-38043 Grenoble, France
  • J. Baruchel
    European Synchrotron Radiation Facility (ESRF), F-38043 Grenoble, France
  • D. Van Dyck
    EMAT, University of Antwerp (RUCA), B-2020 Antwerp, Belgium
  • J. Van Landuyt
    EMAT, University of Antwerp (RUCA), B-2020 Antwerp, Belgium
  • J. P. Guigay
    Laboratoire Louis Néel du CNRS, F-38042 Grenoble, France
  • M. Schlenker
    Laboratoire Louis Néel du CNRS, F-38042 Grenoble, France

書誌事項

公開日
1999-11-08
DOI
  • 10.1063/1.125225
公開者
AIP Publishing

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説明

<jats:p>Because the refractive index for hard x rays is slightly different from unity, the optical phase of a beam is affected by transmission through an object. Phase images can be obtained with extreme instrumental simplicity by simple propagation provided the beam is coherent. But, unlike absorption, the phase is not simply related to image brightness. A holographic reconstruction procedure combining images taken at different distances from the specimen was developed. It results in quantitative phase mapping and, through association with three-dimensional reconstruction, in holotomography, the complete three-dimensional mapping of the density in a sample. This tool in the characterization of materials at the micrometer scale is uniquely suited to samples with low absorption contrast and radiation-sensitive systems.</jats:p>

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