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Quasielastic light scattering from long rigid rods
Author(s) -
Hallett F. R.,
Nickel B.,
Craig T.
Publication year - 1985
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.360240604
Subject(s) - rod , scattering , quasielastic scattering , dephasing , quasielastic neutron scattering , light scattering , chemistry , optics , perpendicular , function (biology) , inelastic scattering , physics , molecular physics , computational physics , condensed matter physics , x ray raman scattering , geometry , inelastic neutron scattering , mathematics , medicine , alternative medicine , pathology , evolutionary biology , biology
The purpose of this work was to improve our understanding of quasielastic light scattering from long rigid rods ( QL >> 1). For these scatterers, only small angular displacements are required to produce dephasing of the scattering light. This plus the fact that only rods lying perpendicular to Q contribute to the scattered light allow one to simplify the intermediate scattering function to an analytic form. This form is shown to be nonexponential , exhibiting ( t ) −½ behavior at long delay times. This new scattering function can then be fit to experimental functions using standard methods.