26 October 2004 Phase-contrast tomography using incident spherical waves
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In this work we investigate the phase-contrast tomography reconstruction problem assuming an incident (paraxial) spherical-wave. Starting from linearized inverse scattering theory, we develop an intensity diffraction tomography (I-DT) reconstruction algorithm that is relevant to scanning geometries that have a fixed source-to-object distance. This reconstruction algorithm accounts for first-order scattering effects introduced by the object and provides a relationship between the intensity measurements made on two parallel detector planes and the desired complex refractive index distribution. A preliminary numerical investigation of the developed reconstruction algorithm is presented.
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Mark A. Anastasio, Daxin Shi, Yin Huang, Greg Gbur, "Phase-contrast tomography using incident spherical waves", Proc. SPIE 5535, Developments in X-Ray Tomography IV, (26 October 2004); doi: 10.1117/12.560164; https://doi.org/10.1117/12.560164

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