Correlation effects in multiple small-angle neutron scattering at the surface layers of inhomogeneities


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Abstract

The influence of spatial correlations on the angular distribution of multiple small-angle neutron scattering (MSANS) at the surface layers of inhomogeneities is studied. Calculations are carried out by taking instrumental distortions into account when observing multiple small-angle neutron scattering by means of methods of a double-crystal diffractometer and a small-angle diffractometer with a position-sensitive detector. Within the framework of the eikonal approximation, the MSANS line is calculated, and the influence of the surface-layer thickness and the inhomogeneity concentration on its width is studied.

About the authors

E. V. Grubova

Institute of Theoretical and Experimental Physics; OKB “Gidropress”, Podolsk

Email: lvov@itep.ru
Russian Federation, Moscow, 117218; Moscow oblast, 142103

F. S. Dzheparov

Institute of Theoretical and Experimental Physics; National Research Nuclear University “MEPhI”

Email: lvov@itep.ru
Russian Federation, Moscow, 117218; Moscow, 115409

D. V. Lvov

Institute of Theoretical and Experimental Physics; National Research Nuclear University “MEPhI”

Author for correspondence.
Email: lvov@itep.ru
Russian Federation, Moscow, 117218; Moscow, 115409

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