Instruments and Experimental Techniques

, Volume 60, Issue 4, pp 526–532 | Cite as

A double-crystal monochromator for neutron stress diffractometry

  • V. T. Em
  • A. M. Balagurov
  • V. P. Glazkov
  • I. D. Karpov
  • P. Mikula
  • N. F. Miron
  • V. A. Somenkov
  • V. V. Sumin
  • J. Šaroun
  • M. N. Shushunov
Nuclear Experimental Technique
  • 52 Downloads

Abstract

The problem of developing a dedicated neutron diffractometer for placement on a horizontal reactor channel to measure internal stresses in bulk materials and components under conditions of a limited space is considered. It is shown that the use of a double-crystal monochromator composed of pyrolytic graphite and a focusing bent perfect silicon single crystal is the optimal solution to this problem. The diffractometer with such a monochromator that is installed at the IR-8 reactor of the National Research Center Kurchatov Institute is comparable in luminosity and resolution at a reactor power of 6 MW to modern stress diffractometers at more powerful reactors.

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Copyright information

© Pleiades Publishing, Inc. 2017

Authors and Affiliations

  • V. T. Em
    • 1
  • A. M. Balagurov
    • 2
  • V. P. Glazkov
    • 1
  • I. D. Karpov
    • 1
  • P. Mikula
    • 3
  • N. F. Miron
    • 1
  • V. A. Somenkov
    • 1
  • V. V. Sumin
    • 2
  • J. Šaroun
    • 3
  • M. N. Shushunov
    • 1
  1. 1.National Research Center Kurchatov InstituteMoscowRussia
  2. 2.Joint Institute for Nuclear ResearchDubna, Moscow oblastRussia
  3. 3.Nuclear Physics InstituteAcademy of Sciences of Czech RepublicRezCzech Republic

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