X-ray phase-contrast radiography using a filtered white beam with a grating interferometer

V. Altapova, J. Butzer, T. D S Rolo, P. Vagovic, A. Cecilia, J. Moosmann, J. Kenntner, J. Mohr, D. Pelliccia, V. F. Pichugin, T. Baumbach

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

One of the most promising methods of phase-contrast imaging is the Talbot grating interferometry. We report about the optimization of the method for fast imaging, requiring reduced exposure times by keeping sufficient imaging contrast. To do this a new Talbot interferometer working with a broad energy bandwidth beam has been installed at the TopoTomo beamline at ANKA. We demonstrate the method with a filtered white beam and without the need of a source grating that is commonly used at moderate-emittance synchrotron sources. Taking advantage of a higher photon flux, the exposure time is significantly reduced. At the same time, images obtained with this setup show a sufficient visibility contrast of 25% on average, which opens the way for new applications in real-time measurements.

Fingerprint

Radiography
phase contrast
radiography
Interferometers
interferometers
gratings
Imaging techniques
X rays
emittance
visibility
interferometry
synchrotrons
x rays
time measurement
Time measurement
bandwidth
Synchrotrons
Interferometry
Visibility
optimization

Keywords

  • grating interferometry
  • Phase-contrast
  • X-ray imaging

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

X-ray phase-contrast radiography using a filtered white beam with a grating interferometer. / Altapova, V.; Butzer, J.; Rolo, T. D S; Vagovic, P.; Cecilia, A.; Moosmann, J.; Kenntner, J.; Mohr, J.; Pelliccia, D.; Pichugin, V. F.; Baumbach, T.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 648, No. SUPPL. 1, 21.08.2011.

Research output: Contribution to journalArticle

Altapova, V. ; Butzer, J. ; Rolo, T. D S ; Vagovic, P. ; Cecilia, A. ; Moosmann, J. ; Kenntner, J. ; Mohr, J. ; Pelliccia, D. ; Pichugin, V. F. ; Baumbach, T. / X-ray phase-contrast radiography using a filtered white beam with a grating interferometer. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 648, No. SUPPL. 1.
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AU - Cecilia, A.

AU - Moosmann, J.

AU - Kenntner, J.

AU - Mohr, J.

AU - Pelliccia, D.

AU - Pichugin, V. F.

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