1. Characterization of the CCD and CMOS cameras for grating-based phase-contrast tomography
- Author
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Felix Beckmann, Matthias Vogelgesang, Jörn Plewka, Lars Lottermoser, Jörg Burmester, Andreas Kopmann, Michele Caselle, Julia Herzen, Stephan Meyer-Loges, Igor Khokhriakov, Suren Chilingaryan, Pavel Lytaev, Matthias Balzer, Imke Greving, Andreas Schreyer, and Alexander Hipp
- Subjects
Physics ,Phase contrast tomography ,CMOS sensor ,business.industry ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,DESY ,Grating ,Computertomographie ,Noise (electronics) ,Characterization (materials science) ,Optics ,CMOS ,Tomography ,ddc:620 ,business - Abstract
In this article we present the quantitative characterization of CCD and CMOS sensors which are used at the experiments for microtomography operated by HZG at PETRA III at DESY in Hamburg, Germany. A standard commercial CCD camera is compared to a camera based on a CMOS sensor. This CMOS camera is modified for grating-based differential phase-contrast tomography. The main goal of the project is to quantify and to optimize the statistical parameters of this camera system. These key performance parameters such as readout noise, conversion gain and full-well capacity are used to define an optimized measurement for grating-based phase-contrast. First results will be shown.
- Published
- 2014
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