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Using a grating analyser for SEMSANS investigations in the very small angle range

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Author

  • Markus Strobl
  • F. Wieder
  • C. P. Duif
  • A. Hilger
  • N. Kardjilov
  • I. Manke
  • W. G. Bouwman

Summary, in English

Spin-echo modulation small-angle neutron scattering (SEMSANS) is based on the detection of spatial beam modulation, which is induced by triangular spin echo precession regions and subsequent spin analyses. In order to detect such signal and exploit it for small angle scattering investigations neutron detection with sub-millimeter spatial resolution is required. Here an approach is reported where instead of a position sensitive detector an absorption grating is used to analyze the beam modulation stepwise. The spin-echo length scan in this case is performed by varying the sample-to-detector distance. The real space correlation functions of reference sample structures in the range 10(2) nm, i.e. giving rise to small-angle scattering in the very small-angle range, are recorded and analyzed successfully. (C) 2012 Elsevier B.V. All rights reserved.

Publishing year

2012

Language

English

Pages

4132-4135

Publication/Series

Physica B: Condensed Matter

Volume

407

Issue

21

Document type

Journal article

Publisher

Elsevier

Topic

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 0921-4526