Characterization of the CCD and CMOS cameras for grating-based phase-contrast tomography
2014
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.
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