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Advanced Bondarenko method for resonance self-shielding calculations in deterministic reactor physics code system CBZ

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Title: Advanced Bondarenko method for resonance self-shielding calculations in deterministic reactor physics code system CBZ
Authors: Chiba, Go Browse this author →KAKEN DB
Narabayashi, Tadashi Browse this author →KAKEN DB
Keywords: Resonance self-shielding
Bondarenko method
Resonance interference
Issue Date: Oct-2016
Publisher: Elsevier
Journal Title: Annals of nuclear energy
Volume: 96
Start Page: 277
End Page: 286
Publisher DOI: 10.1016/j.anucene.2016.06.009
Abstract: The advanced Bondarenko method for resonance self-shielding calculations is devised and proposed. This method is based on three numerical methods; the Bell factor optimization for accurate fuel escape probability representation, extension of resonance interference factors and correction factors for current-weighted total cross sections. A 107-group library for light water reactor applications based on the advanced Bondarenko method is generated for a reactor physics code system CBZ. Performance of the CBZ code with this 107-group library is examined against a suit of light water reactor cell problems. The infinite neutron multiplication factors calculated with CBZ agree with reference continuous-energy Monte Carlo solutions within 0.15%Delta k/kk' differences, and no significant biases on fuel compositions and geometrical specifications are observed. Energy-averaged cross sections are also examined. Numerical tests reveal that significant accuracy improvements in resonance self-shielding calculations are realized by adopting the advanced Bondarenko method without any significant increase of computational burden.
Rights: © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 千葉 豪

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