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Allowing for a Shift of an Absorbing Element Relative to a Node of the Regular Lattice in Reactor Calculations by the Hetergeneous Method

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The effect of an absorbing element being displaced relative to a regular lattice node on the neutron balance in a reactor is considered. A way of accounting for a displacement based on the use of the dipole component of the neutron flux in a reactor calculation by the heterogeneous method is described. The proposed method is shown to be effective in calculations performed for fuel assemblies with displaced absorbing elements. Calculations based on the UNK and MCNP5 codes are compared with one another.

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Authors and Affiliations

  1. National Research Center Kurchatov Institute, Moscow, Russia

    E. A. Aristarkhova & V. M. Malofeev

Authors
  1. E. A. Aristarkhova
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  2. V. M. Malofeev
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Correspondence to E. A. Aristarkhova.

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Translated from Atomnaya Énergiya, Vol. 132, No. 4, pp. 237–239, April, 2022.

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Aristarkhova, E.A., Malofeev, V.M. Allowing for a Shift of an Absorbing Element Relative to a Node of the Regular Lattice in Reactor Calculations by the Hetergeneous Method. At Energy 132, 251–254 (2022). https://doi.org/10.1007/s10512-023-00936-1

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  • DOI: https://doi.org/10.1007/s10512-023-00936-1

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