Investigation of multiple ultrasmall-angle neutron scattering with the aid of a double-crystal diffractometer |
| |
Authors: | Yu G Abov F S Dzheparov N O Elyutin D V Lvov A N Tyulyusov |
| |
Institution: | 1. Institute for Theoretical and Experimental Physics, Bol’shaya Cheremuskinskaya ul. 25, Moscow, 117218, Russia 2. National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia
|
| |
Abstract: | A method of multiple small-angle neutron scattering (MSANS), used to obtain information about inhomogeneities of substances, is considered. Experimental schemes and theory of a double-crystal diffractometer intended for measuring multiple small-angle neutron scattering are described. Methods used to approximate MSANS angular distributions at a low concentration of inhomogeneities and based on Moliére’s theory are reviewed. Their applicability is demonstrated for the examples ofMSANS spectra of samples from ferromagnetic iron-nickel alloys, aluminum powders, and high-T c superconductor ceramic materials. Theoretical and experimental investigations of interference effects that manifest themselves in multiple small-angle neutron scattering on systems containing high concentrations of scatterers are reported. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|