Iterative Phase Retrieval in the Hard X-Ray Regime for Absorbing Multi-Material Objects (137)
Propagation-based phase-contrast imaging techniques in the optical near field are a versatile toolto image a variety of samples. The range spans from unstained biological specimen to material science specimen.The drawback of this technique is the necessity to carry out a phase retrieval on the obtained measurements.For certain classes of specimens exist specialized retrieval schemes but the general case of a multi componentamplitude and phase object remains challenging for the reconstruction