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Monte Carlo Resonance Treatment for the Deterministic Transport Lattice Codes  

Kim Kang-Seog (Korea Atomic Energy Research Institute)
Lee Chung Chan (Korea Atomic Energy Research Institute)
Chang Moon Hee (Korea Atomic Energy Research Institute)
Zee Sung Quun (Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.35, no.6, 2003 , pp. 581-595 More about this Journal
Abstract
Transport lattice codes require the resonance integral tables for the resonant nuclides where the resonance integral is a function of the background cross section and can be prepared through a special program solving the slowing down equation. In case the cross section libraries do not include the resonance integral table for the resonant nuclides, the computational prediction produces a large error. We devised a new method using a Monte Carlo calculation for the effective resonance cross sections to solve this problem provisionally. We extended this method to obtain the resonance integral table for general purpose. The MCNP code is used for the effective resonance integrals and the LIBERTE code for the effective background cross sections. We modified the HELIOS library with the effective cross sections and the resonance integral tables obtained by the newly developed Monte Carlo method, and performed sample calculations using HELIOS and LIBERTE. The results showed that this method is very effective for the resonance treatment.
Keywords
resonance integral table; transport lattice codes; monte-carlo; MCNP; HELIOS; LIBERTE;
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