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Spectroscopy
Volume 24 (2010), Issue 3-4, Pages 387-391
http://dx.doi.org/10.3233/SPE-2010-0454

Self-distribution-function procedure in elastic incoherent neutron scattering for biosystems molecular motion characterization

Salvatore Magazù,1,4 Federica Migliardo,1,2 Antonio Benedetto,1 Miguel Gonzalez,3 and Claudia Mondelli3

1Dipartimento di Fisica, Università di Messina, Messina, Italy
2Laboratoire de Dynamique et Structure des Matériaux Moléculaires, UNESCO-L'Oreal University of Lille I, Villeneuve d'Ascq, France
3Consiglio Nazionale delle Ricerche – Istituto Officina dei Materiali, Institut Laue-Langevin, Grenoble, France
4Dipartimento di Fisica, Università di Messina, C. da Papardo n°31, P.O. Box 55, Vill. S. Agata, 98166 Messina, Italy

Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the present contribution we present a new procedure for the Mean Square Displacement (MSD) determination from Elastic Incoherent Neutron Scattering (EINS) where the connection between the Self-Distribution Function (SDF) and the measured EINS intensity profile is highlighted. We show how the SDF procedure allows both the total and the partial MSD evaluation, through the total and the partial SDFs. The procedure is applied on EINS data collected, by the IN13 backscattering spectrometer (ILL, Grenoble), on aqueous mixtures of sucrose and trehalose.