Combined Monte Carlo narrow resonance - intermediate resonance method for testing resonance integral calculations in complex geometries

Journal Article · Fri Jul 01 00:00:00 EDT 1988 · Nucl. Sci. Eng.; (United States)

OSTI ID:6417844

Chen, I J; Gelbard, E M

The narrow resonance (NR) approximation has, in the past, been applied to regular lattices with fairly simple unit cells. Attempts to use the NR approximation to deal with fine details of the lattice structure, or with complicated lattice cells, have generally been based on assumptions and approximations that are rather difficult to evaluate. A benchmark method is developed in which slowing down is still treated in the NR approximation, but spatial neutron transport is handled by Monte Carlo. This benchmark method is used to evaluate older methods for analyzing the double-heterogeneity effect in fast reactors, and for computing resonance integrals in the PROTEUS lattices. New methods for treating the PROTEUS lattices are proposed.

• Research Organization: National Tsing-Hua Univ., Dept. of Nuclear Engineering, Hsin-Chu (TW); Argonne National Lab., Applied Physics Div., 9700 South Cass Ave., Argonne, IL (US)
• OSTI ID: 6417844
• Journal Information: Nucl. Sci. Eng.; (United States), Vol. 99:3
• Country of Publication: United States
• Language: English

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