Quantitative analysis of two-component samples using in-line hard X-ray images.

@article{Gureyev2002QuantitativeAO,
  title={Quantitative analysis of two-component samples using in-line hard X-ray images.},
  author={Timur E Gureyev and Andrew W. Stevenson and David M. Paganin and Timm Weitkamp and Anatoly A. Snigirev and Irina Snigireva and Stephen W. Wilkins},
  journal={Journal of synchrotron radiation},
  year={2002},
  volume={9 Pt 3},
  pages={
          148-53
        }
}
Methods for rapid quantitative phase-sensitive X-ray imaging of non-crystalline samples consisting of two distinct components are investigated. The transverse spatial distribution of the projected thickness of each component is reconstructed by computer processing of in-line images collected using synchrotron-generated hard X-rays and a position-sensitive detector with submicrometre spatial resolution. Different imaging techniques and associated image-processing algorithms are considered, with… 
Phase contrast image segmentation using a Laue analyser crystal.
TLDR
Simultaneous image acquisition has enabled us to perform functional segmentation of the mouse thorax throughout the respiratory cycle during mechanical ventilation and this phase contrast image segmentation (PCIS) is validated.
Phase-and-amplitude computer tomography
A tomographic technique is proposed for reconstruction under specified conditions of the three-dimensional distribution of complex refractive index in a sample from a single projection image per view
Single-Shot X-Ray Speckle-Based Imaging of a Single-Material Object
We develop a means for speckle-based phase imaging of the projected thickness of a single-material object, under the assumption of illumination by spatially random time-independent x-ray speckles.
Phase retrieval for improved three-dimensional velocimetry of dynamic x-ray blood speckle
High-resolution synchrotron-based x-ray phase-contrast images of in vitro blood flow have been collected. We demonstrate that the application of a single-image phase retrieval algorithm to the images
Computed tomography with linear shift-invariant optical systems.
TLDR
It is shown that under certain conditions the proposed system may allow quantitative local (region-of-interest) tomography, and diffraction tomography with the use of analyzer crystals is considered.
The binary dissector: phase contrast tomography of two- and three-material objects from few projections.
TLDR
It is demonstrated that using phase-contrast imaging it is possible to "dissect" two- and three-material objects into their component materials, which in combination with binary tomographic techniques allows us to satisfy increased information requirements without taking the usual images at additional viewing angles.
Material Decomposition Using Spectral Propagation-Based Phase-Contrast X-Ray Imaging
TLDR
Spectral propagation-based phase-contrast imaging has the potential to be a valuable tool, not only in future lung research, but also in other systems for which phase- Contrast imaging in combination with material decomposition proves to be advantageous.
Fast three-dimensional phase retrieval in propagation-based X-ray tomography.
TLDR
3D post-reconstruction phase-retrieval method for 3D reconstruction of multi-material objects based on propagation-based X-ray phase-contrast tomography with phase retrieval using the homogeneous form of the transport of intensity equation (TIE-Hom).
Optimisation of a propagation-based x-ray phase-contrast micro-CT system
Micro-CT scanners find applications in many areas ranging from biomedical research to material sciences. In order to provide spatial resolution on a micron scale, these scanners are usually equipped
...
1
2
3
...

References

SHOWING 1-9 OF 9 REFERENCES
Quantitative in-line phase-contrast imaging with multienergy X rays.
TLDR
A new method for quantitative nondestructive characterization of objects by x-ray phase-contrast imaging that has the potential advantages of decreased radiation dose and increased accuracy compared to conventional techniques ofx-ray imaging.
Hard x-ray quantitative non-interferometric phase-contrast microscopy
We report the results of quantitative phase-contrast imaging experiments using synchrotron radiation, in-line imaging geometry and a non-interferometric phase retrieval technique. This quantitative
Quantitative Phase Imaging Using Hard X Rays.
TLDR
The quantitative imaging of a phase object using 16keV xrays is reported and it is found that the phase image is in quantitative agreement with independent measurements of the object.
Phase-contrast imaging using polychromatic hard X-rays
IN conventional radiography, X-rays which pass through an object along different paths are differentially absorbed, and the intensity pattern of the emerging beam records the distribution of
Holotomography: Quantitative phase tomography with micrometer resolution using hard synchrotron radiation x rays
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
Phase‐Sensitive X‐Ray Imaging
The basic principles of x‐ray image formation and interpretation in radiography have remained essentially unchanged since Rontgen first discovered x rays over a hundred years ago. The conventional
Single Crystal Diffractometry
Preface Acknowledgements Part I. Introduction Part II. Diffraction Geometry Part III. The Design of Diffractometers Part IV. Detectors Part V. Electronic Circuits Part VI. The Production of the
Deterministic phase retrieval: a Green’s function solution
Equations for the propagation of phase and irradiance are derived, and a Green’s function solution for the phase in terms of irradiance and perimeter phase values is given. A measurement scheme is
Three-dimensional representation of the distribution of projected thickness of Cu reconstructed from Fig
  • Phys. Rev. Lett
  • 1999