Experimental feasibility study of energy-resolved fan-beam coherent scatter computed tomography

Jens-Peter Schlomka; Johannes Delfs; Hans Barschdorf; Axel Thran; Udo van Stevendaal

doi:10.1117/12.556313

26 October 2004 Experimental feasibility study of energy-resolved fan-beam coherent scatter computed tomography

Jens-Peter Schlomka, Johannes Delfs, Hans Barschdorf, Axel Thran, Udo van Stevendaal

Proceedings Volume 5535, Developments in X-Ray Tomography IV; (2004) https://doi.org/10.1117/12.556313
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

Energy-resolved fan beam coherent scatter computed tomography (CSCT) is a novel X-ray based imaging method revealing structural information on the molecular level of tissue or other material under investigation with high resolution of the momentum-transfer dependent coherent scatter cross-section. Since the molecular structure is the source of contrast a very good material discrimination and possibly also medical diagnosis of structural changes of tissue can be achieved with this technique. Poor spectral resolution as found in previous work due to the application of a polychromatic X-ray source can be overcome when energy-resolved detection is used. In this paper experimental results on phantoms using an energy-resolving CdTe-detector are shown. With the present setup the spatial resolution was found to be 4.5 mm (FWHM) and a spectral resolution of 6% was achieved. Applications of this technique can be found in medical imaging, material analysis and baggage inspection.

Citation Download Citation

Jens-Peter Schlomka, Johannes Delfs, Hans Barschdorf, Axel Thran, and Udo van Stevendaal "Experimental feasibility study of energy-resolved fan-beam coherent scatter computed tomography", Proc. SPIE 5535, Developments in X-Ray Tomography IV, (26 October 2004); https://doi.org/10.1117/12.556313

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