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Gamarino, M. (author), Dall'Osso, Aldo (author), Lathouwers, D. (author), Kloosterman, J.L. (author)In reactor core nodal analysis, the dependence of few-group, homogenized cross sections on the local physical conditions (i.e., the thermal-hydraulic state and material composition) is commonly represented via multivariate interpolation in parameterized libraries. In this paper, we propose a novel approach to model the spectral effects of...journal article 2019