title: Biomolecular motion characterization by a self-distribution-function procedure in elastic incoherent neutron scattering.
abstract: In the present paper we first focus on the role of the instrumental resolution in elastic incoherent neutron scattering (EINS) where the connection between the self-distribution function (SDF) and the measured EINS intensity profile is highlighted. Second we show how the SDF procedure, previously introduced, allows both the total and the partial mean-square displacement evaluations through the total and the partial SDFs. Finally, we compare the SDF and the Gaussian procedures, by applying the two approaches to EINS data collected, by the IN13 backscattering spectrometer (Institute Laue-Langevin, Grenoble), on aqueous mixtures of two homologous disaccharides, i.e., sucrose and trehalose, and on myoglobin.
authors.affiliation: Dipartimento di Fisica, Università di Messina, C. da Papardo n degrees 31, P.O. Box 55, Vill. S. Agata, 98166 Messina, Italy. smagazu@unime.it
authors.forename: Salvatore
authors.initials: S
authors.lastname: Magazù
authors.forename: Giacomo
authors.initials: G
authors.lastname: Maisano
authors.forename: Federica
authors.initials: F
authors.lastname: Migliardo
authors.forename: Antonio
authors.initials: A
authors.lastname: Benedetto
mesh_terms: D000465:Algorithms; D004548:Elasticity; D009211:Myoglobin / Q000737:chemistry*; D033363:Neutron Diffraction; D016011:Normal Distribution; D013395:Sucrose / Q000737:chemistry*; D013696:Temperature; D013997:Time Factors; D014199:Trehalose / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D009211:Myoglobin; D014867:Water; D013395:Sucrose; D014199:Trehalose