Energy-resolved interferometric x-ray imaging

Georg Pelzer; Florian Bayer; Karl Gödel; Wilhelm Haas; Florian Horn; Jens Rieger; André Ritter; Peter Sievers; Thomas Weber; Andrea Zang; Jürgen Durst; Thilo Michel; Gisela Anton

doi:10.1117/12.2007564

19 March 2013 Energy-resolved interferometric x-ray imaging

Georg Pelzer, Florian Bayer, Karl Gödel, Wilhelm Haas, Florian Horn, Jens Rieger, André Ritter, Peter Sievers, Thomas Weber, Andrea Zang, Jürgen Durst, Thilo Michel, Gisela Anton

Author Affiliations +

Proceedings Volume 8668, Medical Imaging 2013: Physics of Medical Imaging; 866851 (2013) https://doi.org/10.1117/12.2007564
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

Interferometric X-ray imaging becomes more and more attractive for applications such as medical imaging or non-destructive testing, where a compact setup is needed. Therefore a so-called Talbot-Lau interferometer in combination with a conventional X-ray tube is used. Thereby, three different kinds of images can be obtained. An attenuation image like in conventional X-ray imaging, an image of the differential phase-shifts caused by the object and the so-called dark-field image. The dark-field image shows information about the object's granularity even in sub-pixel dimensions what especially seems very promising for applications like mammography. With respect to optimizing the output of interferometric X-ray imaging in any application, it is inevitable to know the energy response of the interferometer as well as the energy dependence of the interactions of X- rays with matter. In this contribution, simulations and measurements using a Medipix 2 and a Timepix detector are presented.

Citation Download Citation

Georg Pelzer, Florian Bayer, Karl Gödel, Wilhelm Haas, Florian Horn, Jens Rieger, André Ritter, Peter Sievers, Thomas Weber, Andrea Zang, Jürgen Durst, Thilo Michel, and Gisela Anton "Energy-resolved interferometric x-ray imaging", Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 866851 (19 March 2013); https://doi.org/10.1117/12.2007564

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