Two examples of recent advances in sensitivity calculations
CEA, DES, IRESNE, DER, SPRC, LEPh, CEA-Cadarache, 13108 Saint Paul lez Durance, France
2 CEA, DAM, DIF, 91297 Arpajon, France
* e-mail: firstname.lastname@example.org
Received in final form: 13 July 2021
Accepted: 19 July 2021
Published online: 16 August 2021
This article reviews two recently established methods to compute sensitivities of some core parameters to basic nuclear data. First, perturbation theory offers an efficient way to compute sensitivities to nuclear parameters in continuous energy transport simulations: making use of the Iterated Fission Probability method, and by coupling the Monte Carlo code TRIPOLI-4® to the nuclear evaluation code CONRAD, we were able to compute the sensitivity of core reactivity to nuclear parameters for simple ICSBEP benchmarks. Second, using a multipoint description of a nuclear system and deterministic transport calculations the sensitivity of the state eigenvector of the system to multigroup nuclear data is computed using simple and fast partial importance calculations.
© E. Vandermeersch et al., Published by EDP Sciences, 2021
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