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Proceedings Paper

Phase-contrast imaging and tomography at 60 keV using a conventional x-ray tube
Author(s): T. Donath; F. Pfeiffer; O. Bunk; W. Groot; M. Bednarzik; C. Grünzweig; E. Hempel; S. Popescu; M. Hoheisel; C. David
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Paper Abstract

Phase-contrast imaging using grating interferometers has been developed over the last few years for x-ray energies of up to 28 keV. We have now developed a grating interferometer for phase-contrast imaging that operates at 60 keV x-ray energy. Here, we show first phase-contrast projection and CT images recorded with this interferometer using an x-ray tube source operated at 100 kV acceleration voltage. By comparison of the CT data with theoretical values, we find that our measured phase images represent the refractive index decrement at 60 keV in good agreement with the theoretically expected values. The extension of phase-contrast imaging to this significantly higher x-ray energy opens up many new applications of the technique in industry, medicine, and research.

Paper Details

Date Published: 16 September 2008
PDF: 8 pages
Proc. SPIE 7078, Developments in X-Ray Tomography VI, 707817 (16 September 2008); doi: 10.1117/12.794699
Show Author Affiliations
T. Donath, Paul Scherrer Institut (Switzerland)
F. Pfeiffer, Paul Scherrer Institut (Switzerland)
Ecole Polytechnique Fédérale de Lausanne (Switzerland)
O. Bunk, Paul Scherrer Institut (Switzerland)
W. Groot, Paul Scherrer Institut (Switzerland)
M. Bednarzik, Paul Scherrer Institut (Switzerland)
C. Grünzweig, Paul Scherrer Institut (Switzerland)
E. Hempel, Siemens AG (Germany)
S. Popescu, Siemens AG (Germany)
M. Hoheisel, Siemens AG (Germany)
C. David, Paul Scherrer Institut (Switzerland)

Published in SPIE Proceedings Vol. 7078:
Developments in X-Ray Tomography VI
Stuart R. Stock, Editor(s)

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