Investigation on the heterogeneous resonance integral in the embedded self-shielding method

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Abstract

Resonance integral tables generated in heterogeneous geometry for the embedded self-shielding method are thoroughly investigated in this study. Inconsistencies between the infinite pin cell geometry used for resonance integral generation and the target lattice is clarified and quantitative analyses show that inconsistencies on parameters for the fuel pin cause discrepancies in the embedded self-shielding method. A universal heterogeneous RI is proposed and numerical results show that it is an effective solution to irregular lattices with different types of fuel pins.

Original languageEnglish
Pages (from-to)485-500
Number of pages16
JournalAnnals of Nuclear Energy
Volume120
DOIs
StatePublished - Oct 2018

Keywords

  • Embedded self-shielding method
  • Resonance integral
  • Resonance self-shielding calculation

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