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A double-crystal monochromator for neutron stress diffractometry

  • Nuclear Experimental Technique
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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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Authors and Affiliations

  1. National Research Center Kurchatov Institute, Moscow, 123182, Russia

    V. T. Em, V. P. Glazkov, I. D. Karpov, N. F. Miron, V. A. Somenkov & M. N. Shushunov

  2. Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia

    A. M. Balagurov & V. V. Sumin

  3. Nuclear Physics Institute, Academy of Sciences of Czech Republic, Rez, Czech Republic

    P. Mikula & J. Šaroun

Authors
  1. V. T. Em
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  2. A. M. Balagurov
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  3. V. P. Glazkov
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  4. I. D. Karpov
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  5. P. Mikula
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  6. N. F. Miron
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  7. V. A. Somenkov
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  8. V. V. Sumin
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  9. J. Šaroun
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  10. M. N. Shushunov
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Corresponding author

Correspondence to V. T. Em.

Additional information

Original Russian Text © 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, 2017, published in Pribory i Tekhnika Eksperimenta, 2017, No. 4, pp. 75–81.

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Em, V.T., Balagurov, A.M., Glazkov, V.P. et al. A double-crystal monochromator for neutron stress diffractometry. Instrum Exp Tech 60, 526–532 (2017). https://doi.org/10.1134/S0020441217040042

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  • DOI: https://doi.org/10.1134/S0020441217040042

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