期刊
OPTICS EXPRESS
卷 20, 期 25, 页码 27670-27690出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.20.027670
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资金
- DFG - Cluster of Excellence Munich-Centre for Advanced Photonics
We present a theoretical and experimental comparison of three X-ray phase-contrast techniques: propagation-based imaging, analyzer-based imaging and grating interferometry. The signal-to-noise ratio and the figure of merit are quantitatively compared for the three techniques on the same phantoms and using the same X-ray source and detector. Principal dependencies of the signal upon the numerous acquisition parameters, the spatial resolution and X-ray energy are discussed in detail. The sensitivity of each technique, in terms of the smallest detectable phase shift, is also evaluated. (C) 2012 Optical Society of America
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