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Applied Physics A

, Volume 74, Supplement 1, pp s86–s88 | Cite as

Neutron Fourier diffractometer FSD for internal stress analysis: first results

  • G.D. Bokuchava
  • V.L. Aksenov
  • A.M. Balagurov
  • E.S. Kuzmin
  • V.V. Zhuravlev
  • A.P. Bulkin
  • V.A. Kudryashev
  • V.A. Trounov

Abstract.

At the IBR-2 pulsed reactor in Dubna a new neutron Fourier diffractometer FSD is under construction. FSD continues the development of neutron Fourier diffractometry at long-pulse neutron sources, which was started several years ago with the high-resolution Fourier diffractometer HRFD at the IBR-2. Whereas HRFD is mainly used for precise structural refinement, FSD is optimised for internal stress measurements in bulk materials. The FSD design satisfies the requirements of high luminosity, high resolution, a specific sample environment, a wide range of dhkl, and fixed scattering angles 2θ=±90°. It consists of a mirror neutron guide, a fast Fourier chopper for the neutron-beam intensity modulation, a ±90° MultiCon ZnS(Ag) 6Li-loaded detector system with both geometrical and electronic focusing, a five-axis goniometer ‘Huber’ and loading machines, and VME-based RTOF analysers for data acquisition. Examples of the first experimental results obtained with FSD are presented.

PACS: 61.12.-q 

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • G.D. Bokuchava
    • 1
  • V.L. Aksenov
    • 1
  • A.M. Balagurov
    • 1
  • E.S. Kuzmin
    • 1
  • V.V. Zhuravlev
    • 1
  • A.P. Bulkin
    • 2
  • V.A. Kudryashev
    • 2
  • V.A. Trounov
    • 2
  1. 1.Frank Laboratory of Neutron Physics, JINR, 141980 Dubna, Moscow region, RussiaRU
  2. 2.Petersburg Nuclear Physics Institute of RAS, 188350 Gatchina, RussiaRU

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