Differential influence of instruments in nuclear core activity evaluation by data assimilation

Abstract : The global activity fields of a nuclear core can be reconstructed using data assimilation. Data assimilation allows to combine measurements from instruments, and information from a model, to evaluate the best possible activity within the core. We present and apply a specific procedure which evaluates this influence by adding or removing instruments in a given measurement network (possibly empty). The study of various network configurations of instruments in the nuclear core establishes that influence of the instruments depends both on the independant instrumentation location and on the chosen network.
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Bertrand Bouriquet, Jean-Philippe Argaud, Patrick Erhard, Sébastien Massart, Angélique Ponçot, et al.. Differential influence of instruments in nuclear core activity evaluation by data assimilation. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2011, vol. 626-627, pp.97-104. ⟨10.1016/j.nima.2010.09.179⟩. ⟨hal-00803539⟩

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