As shown in Parts II and III, the methods of structural interpretation of small-angle scattering data deal mainly with an ideal, absolutely precise intensity curve, namely, the function I(s). In experiments, however, one determines not this curve but a certain set of points J e(s i ), which contain various distortions. Here it is necessary to take into account statistical noise, measurement-interval termination, scattering by various details of the experimental device and by the solvent, “smearing” of the ideal curve profile as a result of the finite dimensions of the beam and detector, polychromaticity of the radiation, and so on. Therefore, in an experimental data analysis the immediate task is, as a rule, transition from the set J e(s i ) to the function I(s).


Weighting Function Data Treatment Statistical Noise Frequency Filter Sampling Theorem 
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Copyright information

© Springer Science+Business Media New York 1987

Authors and Affiliations

  • L. A. Feigin
    • 1
  • D. I. Svergun
    • 1
  • George W. Taylor
    • 2
  1. 1.Institute of CrystallographyAcademy of Sciences of the USSRMoscowUSSR
  2. 2.Princeton ResourcesPrincetonUSA

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