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X-ray Phase-contrast imaging

Martin Bech

Universitetslektor

X-ray Phase-contrast imaging

Experimental validation of image contrast correlation between ultra-small-angle X-ray scattering and grating-based dark-field imaging using a laser-driven compact X-ray source

Författare

  • Martin Bech
  • Simone Schleede
  • Guillaume Potdevin
  • Klaus Achterhold
  • Franz Pfeiffer
  • Oliver Bunk
  • Torben H. Jensen
  • Rod Loewen
  • Ron Ruth

Summary, in English

X-ray phase and dark-field contrast have recently been the source of much attention in the field of X-ray imaging, as they both contribute new imaging signals based on physical principles that differ from conventional X-ray imaging. With a so-called Talbot grating interferometer, both phase-contrast and dark-field images are obtained simultaneously with the conventional attenuation-based X-ray image, providing three complementary image modalities that are intrinsically registered. Whereas the physical contrast mechanisms behind attenuation and phase contrast are well understood, a formalism to describe the dark-field signal is still in progress. In this article, we report on correlative experimental results obtained with a grating interferometer and with small-angle X-ray scattering. Furthermore, we use a proposed model to quantitatively describe the results, which could be of great importance for future clinical and biomedical applications of grating-based X-ray imaging.

Publiceringsår

2012

Språk

Engelska

Sidor

47-50

Publikation/Tidskrift/Serie

Photonics and Lasers in Medicine

Volym

1

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

De Gruyter

Nyckelord

  • dark-field
  • inverse Compton
  • phase contrast
  • X-ray

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 2193-0635