Mainz 2014 – wissenschaftliches Programm

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ST: Fachverband Strahlen- und Medizinphysik

ST 2: Biomedical Imaging I

ST 2.7: Vortrag

Dienstag, 25. März 2014, 15:30–15:45, RW 2

Energy correction for phase-contrast in Talbot-Lau X-ray imaging — •Manuel Kraus, Georg Pelzer, Gisela Anton, Jens Rieger, André Ritter, Ina Ritter, Johannes Wandner, Thilo Michel, and Thomas Weber — ECAP - Erlangen Centre for Astroparticle Physics, Universität Erlangen-Nürnberg, Erwin- Rommel-Straße 1, 91058 Erlangen

In grating based x-ray phasecontrast imaging the use of energy-resolving photon-counting detectors offer the opportunity not only to optimize the signal-to-noise-ratio for the phase-contrast images, but also to get quantitative values from the corrected phase-contrast images. Energy dependent correction factors were derived for the phase-contrast picture, tested with simulations and evaluated with measurements using the Dosepix detector.