The use of flux ratios to homogenize squared absorber cells

M. Segev; G. Raitses

doi:10.1016/S0306-4549(02)00076-2

The use of flux ratios to homogenize squared absorber cells

M. Segev, G. Raitses

Unit of Nuclear Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Cell-level neutronics often involves absorber cells. Cell details are homogenized and the cylindrical cell is presented in box form to a higher level of calculation. Neglect of either the non-reflective nature of the cell boundary or its rectangulation will produce errors. Such errors may be avoided by including in the input to the higher-level calculation, namely the homogenized cross sections, flux ratios. One forms a ratio of the flux produced in the calculation of a detailed, cylindrical, cell to the flux produced in the calculation of the box-like, homogenized, counterpart cell. In the higher-level calculation these ratios are to multiply absorption and fission rates.

Original language	English
Pages (from-to)	873-882
Number of pages	10
Journal	Annals of Nuclear Energy
Volume	30
Issue number	7
DOIs	https://doi.org/10.1016/S0306-4549(02)00076-2
State	Published - 1 May 2003

ASJC Scopus subject areas

Nuclear Energy and Engineering

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10.1016/S0306-4549(02)00076-2

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AB - Cell-level neutronics often involves absorber cells. Cell details are homogenized and the cylindrical cell is presented in box form to a higher level of calculation. Neglect of either the non-reflective nature of the cell boundary or its rectangulation will produce errors. Such errors may be avoided by including in the input to the higher-level calculation, namely the homogenized cross sections, flux ratios. One forms a ratio of the flux produced in the calculation of a detailed, cylindrical, cell to the flux produced in the calculation of the box-like, homogenized, counterpart cell. In the higher-level calculation these ratios are to multiply absorption and fission rates.

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The use of flux ratios to homogenize squared absorber cells

Abstract

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