## Abstract

The integral transport equation is first formulated for a Wigner-Seitz reactor lattice cell with either reflected or isotropic return boundary conditions. The equation is then reduced to a form suitable for numerical computation by dividing the cell into a number of concentric volume increments and approximating the scalar flux within each of these by a three point interpolation polynomial. The procedure thus relaxes the flat flux assumption made for each volume increment in using conventional collision probability methods. One group disadvantage factors are calculated for a slab and a cylindrical lattice using both the collision probability and the polynomial approximation methods. The polynomial approximation technique results in a substantial reduction in the computing time necessary to obtain the disavantage factors to within a given accuracy.

Original language | English (US) |
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Pages (from-to) | 87-97 |

Number of pages | 11 |

Journal | Journal of Nuclear Energy |

Volume | 23 |

Issue number | 2 |

DOIs | |

State | Published - Mar 1969 |

## ASJC Scopus subject areas

- Engineering(all)