Nacre: the Nucleus at the Core of the Reactor

In this report for an Accreditation to Supervise Research (HDR), the author proposes an overview of her research activities which more particularly addressed the field of nuclear data. In a first part, she proposes an overview of the evolution of this theme from the period of emergence (during the 1990's) to the 2010's. Then, she reports her works related to the study of (n,xn) reactions in nuclear reactors, to the evolution from (n,xn γ) cross sections to (n,xn) cross sections. She finally discusses perspectives of evolutions for existing codes