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Proceedings Paper

Multiple scatter correction in coherent scatter computed tomography
Author(s): Axel Thran; Udo van Stevendaal; Jens-Peter Schlomka
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Paper Abstract

Coherent Scatter Computer Tomography (CSCT) is a novel x-ray imaging method revealing structural information on the molecular level. More precisely, the momentum transfer dependence of the coherent scatter cross section of the object material in each voxel of an object slice under investigation is determined. Compared to other x-ray diffraction techniques very large objects can be investigated which allows to apply the technique in medical imaging, material analysis or baggage inspection. The ratio of multiple scattered radiation over single scatter increases with object size. For large objects multiple scatter can become the dominant contribution. Since this part of the measured radiation cannot be reconstructed correctly, artifacts in the resulting images occur. The amount of multiple scattered radiation in CSCT and its dependence on the object size and material have been investigated by means of Monte Carlo simulations. A method to correct for multiple scattered radiation in energy-resolved CSCT is introduced. The benefit of this correction method to the quality of reconstructed data is demonstrated.

Paper Details

Date Published: 16 September 2005
PDF: 12 pages
Proc. SPIE 5923, Penetrating Radiation Systems and Applications VII, 59230P (16 September 2005); doi: 10.1117/12.621085
Show Author Affiliations
Axel Thran, Philips Research Labs. (Germany)
Udo van Stevendaal, Philips Research Labs. (Germany)
Jens-Peter Schlomka, Philips Research Labs. (Germany)

Published in SPIE Proceedings Vol. 5923:
Penetrating Radiation Systems and Applications VII
F. Patrick Doty; H. Bradford Barber; Hans Roehrig, Editor(s)

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