Mean square displacement evaluation by elastic neutron scattering self-distribution function

Salvatore Magazù, Giacomo Maisano, Federica Migliardo, and Antonio Benedetto
Phys. Rev. E 77, 061802 – Published 6 June 2008

Abstract

In the present work an operational recipe for the mean square displacement (MSD) determination, highlighting the connection between elastic incoherent neutron scattering (EINS) intensity profiles and the associated self-distribution function, is presented. The determination of the thermal behavior of the total MSD and of its partial contributions is tested on EINS data collected by the backscattering spectrometer IN13 (ILL, Grenoble) on a model system such as PolyEthylene Glycol with a mean molecular weight of 400 Dalton (PEG 400).

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  • Received 7 February 2008

DOI:https://doi.org/10.1103/PhysRevE.77.061802

©2008 American Physical Society

Authors & Affiliations

Salvatore Magazù1,*, Giacomo Maisano1, Federica Migliardo1, and Antonio Benedetto2

  • 1Dipartimento di Fisica and CNISM, Università di Messina, P.O. Box 55, I-98166 Messina, Italy
  • 2Dipartimento di Fisica, Università di Messina, P.O. Box 55, I-98166 Messina, Italy

  • *smagazu@unime.it

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Vol. 77, Iss. 6 — June 2008

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