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Abingdon, United Kingdom

Rochman D.,Nuclear Research and Consultancy Group | Koning A.J.,Nuclear Research and Consultancy Group | Kopecky J.,JUKO Research | Sublet J.-C.,UK Atomic Energy Authority | Ribon P.,CEA Saclay Nuclear Research Center
Annals of Nuclear Energy

This paper presents a novel approach using average parameters from statistical models in the continuum to produce statistical resolved resonances in the resonance range. Based on unresolved resonance parameters and the random ladder method, average parameters such as the scattering radius, level spacing, reduced neutron width and the radiative width are used to create resolved resonances from thermal energy up to the first excited level. Using the TALYS reaction code and the CALENDF processing code, the method is tested on ≃2400 isotopes and will be used to produce resolved resonance ranges in the TENDL libraries for reactions missing experimental resolved and unresolved parameters. Additionally, the R-matrix code AVEFIT is used to approximate the resonance structure effects above the first excited level of selected isotopes. © 2012 Elsevier Ltd. All rights reserved. Source

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