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Neutron Topography

  • Michel Schlenker
  • José Baruchel
Part of the NATO ASI Series book series (NSSB, volume 357)

Abstract

Neutron diffraction imaging (hereafter called, following standard usage, neutron topography) is as closely related to X-ray topography as neutron diffraction is to X-ray diffraction. On the one hand the diffraction physics is nearly the same although neutrons have non-zero rest mass and, in the form under which they are used in diffraction (thermal neutrons, or nearly so), are non-relativistic, while the contrary applies for photons. The main orders of magnitude characterizing the processes are similar although the interactions are quite different. Thus, in principle, neutron topography is possible, and most of the features discussed in relation to X-ray topography in this volume are valid. On the other hand, just as neutrons, when discerningly used, are a valuable complement to X-rays for structural work, neutron topography has its own limitations, but also very special capabilities which make it worth while:
  1. (a)

    neutron beams are only available in large facilities, which for most researchers means away from the “home” laboratory

     
  2. (b)

    the available neutron fluxes are small even at a high-flux reactor and even when compared with laboratory X-ray generators (Scherm & Fåk, 1993),

     
  3. (c)

    absorption is negligible in most materials, and

     
  4. (d)

    magnetic scattering is a strong component.

     

This chapter will focus on these differences.

Keywords

Domain Wall Neutron Diffraction Magnetic Domain Ferromagnetic Domain White Beam 
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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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Michel Schlenker
    • 1
  • José Baruchel
    • 2
  1. 1.Laboratoire Louis Néel du CNRS, associé à l’UJFGrenobleFrance
  2. 2.ESRFGrenobleFrance

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