The use of flux ratios to homogenize squared absorber cells

M. Segev, G. Raitses

Research output: Contribution to journalArticlepeer-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 languageEnglish
Pages (from-to)873-882
Number of pages10
JournalAnnals of Nuclear Energy
Volume30
Issue number7
DOIs
StatePublished - 1 May 2003

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