Martin Bech
Universitetslektor
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
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