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Neutron Small Angle Scattering, Instruments and Applications

  • J. Schelten
Part of the NATO Advanced Study Institutes Series book series (NSSB, volume 73)

Abstract

In this lecture the basic features of small angle neutron scattering as a tool to investigate solids are described. In discussing the design and construction of the most powerful instruments it is explained why the instruments are up to 100 m long, why moderately monochromatized neutron beams are used, and why long wavelength neutrons are favorable. In three examples the strength of this method, in comparison to competitive methods, is demonstrated. The examples, if referred to by their results, are:
  1. (i)

    a spiral spin-order in higher manganese silicides was discovered by small angle neutron scattering which was not seen in a conventional neutron diffractometer;

     
  2. (ii)

    the predicted correlation hole in the pair correlation function of polymer centroids was experimentally verified;

     
  3. (iii)

    by combining light and neutron results, a reliable new method was developed to determine the critical exponent η of the second order phase transformation of a binary liquid mixture.

     

Keywords

Scattered Intensity Small Angle Neutron Scattering Flux Line Binary Liquid Mixture Magnetic Satellite 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    P. G. de Gennes, “Scaling Concepts in Polymer Physics”, Cornell University Press, Ithaca, N. Y. (1979).Google Scholar
  2. 2.
    T. Nakajima and J. Schelten, J. of Magnetism and Magnetic Materials 21: 157 (1980).ADSCrossRefGoogle Scholar
  3. 3.
    R. Duplessix, J. P. Cotton, H. Benoit, and C. Picot, Polymer 20: 1181 (1979).CrossRefGoogle Scholar
  4. 4.
    R. Schneider, L. Belkoura, J. Schelten, D. Woermann, and B. Chu, Phys. Rev. B 22: 5507 (1980).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • J. Schelten
    • 1
  1. 1.Institut für FestkörperforschungKernforschungsanlage JülichJülichWest Germany

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