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.
| Original language | English |
|---|---|
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 648 |
| Issue number | SUPPL. 1 |
| DOIs | |
| Publication status | Published - 21 Aug 2011 |
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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 journal › Article
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TY - JOUR
T1 - X-ray phase-contrast radiography using a filtered white beam with a grating interferometer
AU - Altapova, V.
AU - Butzer, J.
AU - Rolo, T. D S
AU - Vagovic, P.
AU - Cecilia, A.
AU - Moosmann, J.
AU - Kenntner, J.
AU - Mohr, J.
AU - Pelliccia, D.
AU - Pichugin, V. F.
AU - Baumbach, T.
PY - 2011/8/21
Y1 - 2011/8/21
N2 - 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.
AB - 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.
KW - grating interferometry
KW - Phase-contrast
KW - X-ray imaging
UR - http://www.scopus.com/inward/record.url?scp=79960839130&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960839130&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2010.12.218
DO - 10.1016/j.nima.2010.12.218
M3 - Article
AN - SCOPUS:79960839130
VL - 648
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - SUPPL. 1
ER -