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Calculation of Reactor Lattices with Scattering Anisotropy by the Passage-Probability Method

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Abstract

In accordance with the existence of macro- and micro-distributions of the flux in reactor lattices, a description of the scattering anisotropy and the average fluxes in the cell zones using sequences of macro- and micro-harmonics is proposed. The former are the standard spherical functions in application to finite regions; they are no longer complete and (aside from the anisotropy of the macrodistribution of the flux in the lattice) can describe the anisotropy of the microdistribution of the flux in cells only if the ring-shaped zones are partitioned in detail along the azimuth. Consequently, microharmonics are introduced in the general case for describing the anisotropy of the microdistribution of the flux in the cells. The computational results presented show that the proposed method is adequate.

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Authors and Affiliations

  1. Institute of Power Engineering, Belorussian National Academy of Sciences, Russia

    I. E. Rubin & N. M. Dneprovskaya

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  1. I. E. Rubin
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  2. N. M. Dneprovskaya
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Rubin, I.E., Dneprovskaya, N.M. Calculation of Reactor Lattices with Scattering Anisotropy by the Passage-Probability Method. Atomic Energy 93, 727–733 (2002). https://doi.org/10.1023/A:1021767916331

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  • DOI: https://doi.org/10.1023/A:1021767916331

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