Nosik, V L | Search NASA

DOE OSTI2010

Diffuse-dynamic multiparameter diffractometry: A review

The results reported at the Conference on Application of X-Rays, Synchrotron Radiation, Neutrons, and Electrons in Nano-, Bio-, Information-, and Cognitive Technologies (RSNE-NBIC 2009) are briefly reviewed. This review is based on a cycle of studies [1-6] where a new method for studying the structure of real crystals-diffuse-dynamic multiparameter diffractometry (DDMD)-was proposed and substantiated.

75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗

DOE OSTI2010

X-ray scattering from an irregular surface: Two-scale model

X-ray scattering from an irregular surface, which is described within a two-scale model, has been considered. A method for calculating the differential scattering cross section based on the quasi-classical Kirchhoff approximation is proposed. Coherent scattering from a lateral surface with a periodic motif is analyzed, and the reduction factor is calculated; the latter differs from the well-known expressions of the perturbation theory (first Born approximation, distorted-wave Born approximation). It is shown that the surface profile deviations from a periodic law, edge effects, and the interference of waves reflected from surface areas with different inclination angles significantly affect scattering from lateral structures.

75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗