Work

Three-dimensional imaging using coherent x rays at grazing incidence geometry

Year: 2023

Type: article

Abstract: We have developed a three-dimensional coherent diffraction imaging algorithm to retrieve phases of diffraction patterns of samples in grazing incidence small angle x-ray scattering experiments. The algorithm interprets the diffraction patterns using the distorted-wave Born approximation instead of the Born approximation, as in this case, the existence of a reflected beam from the substrate causes the diffraction pattern to deviate significantly from the simple Fourier transform of the object. Detailed computer simulations show that the algorithm works. Verification with real experiments is planned.

Source: Journal of the Optical Society of America A

DOI: 10.1364/josaa.487448

Authors: Yi Yang, Sunil K. Sinha

Institution: University of California San Diego

Language: English

Topic: Advanced X-ray Imaging Techniques

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Office of Science

Award: TAS::89 0222::TAS-NEW; NEUTRON AND X-RAY STUDIES OF SPIN AND CHANGE MANIPULATION IN MAGNETIC NANOSTRUCTURES; PI- SUNIL SINHA