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Three-image diffraction enhanced imaging algorithm to extract absorption, refraction, and ultrasmall-angle scattering
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DOI：10.1063/1.2713147.png)
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As different methods to improve diffraction enhanced imaging are proposed, the authors introduce a simple algorithm that follows the original idea of Chapman [Phys. Med. Biol. 42, 2015 (1997)], but extend it to a general object featuring absorption, refraction, and ultrasmall-angle scattering. The information relative to the three effects is decoupled, requiring only three images in input. Simulation and experiment give accurate results, provided the refraction and scattering angles are small compared to the rocking curve width. The proposed algorithm can be readily and fruitfully implemented in several applications, particularly when time and dose constraints are relevant. (c) 2007 American Institute of Physics.
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3.6
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