Angular dependence of specular resonant nuclear scattering of x rays

Autor:	G. S. Brown, Alfred Q. R. Baron, S. L. Ruby, A. I. Chumakov, J. Arthur, G. V. Smirnov
Rok vydání:	1994
Předmět:	Physics Total internal reflection genetic structures business.industry Scattering Electron Electromagnetic radiation eye diseases Optics Reflection (physics) sense organs Specular reflection Diffuse reflection Born approximation Atomic physics business
Zdroj:	Physical Review B. 50:10354-10357
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.50.10354
Popis:	Specular scattering of x rays by electrons in a material becomes large at grazing angles below the critical angle for external reflection. In contrast, we observe specular scattering by resonant nuclei to peak at the critical angle and decrease at smaller angles. This is the result of the influence of the electronic scattering on the nuclear response of the system and is explained using an optical model. A distorted-wave Born approximation shows the specular nuclear signal should be large at angles where the electronic reflectivity varies rapidly with angle.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e48781f6e1cc2eac17dded8de841cfa https://doi.org/10.1103/physrevb.50.10354 Zobrazit plný text záznamu