Prodan, Mr. Alexandru (2017) Identification of Sensitive Isotopes for the Needs in Reactor Safety and Quantification of the Induced Calculation Bias Stage d'été, ENSTA.

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Résumé

For nuclear safety studies, accurate knowledge of the nuclear data used as input to neutron simulation codes is of the highest importance. This knowledge is necessary to determine the uncertainties on the neutron parameters and to evaluate the bias coming from the nuclear data. The work detailed in this study was proposed by the ‘Institut de Radioprotection et de Sûreté Nucléaire’ (IRSN). It consists of identifying sensitive isotopes, impacting simulation results for Pressurized Water Reactors (PWRs) using Monte Carlo calculations in evolution and sensitivity calculations. The computation of sensitivities and contribution of uncertainty of nuclear data to the final simulation result is performed as a function of irradiation time. This is in contrast to studies where calculations are carried out for the beginning of life of a reactor fuel lifecycle. The aim of this work is to assess the uncertainties related to the nuclear data impacting the safety studies at IRSN.

Type de document:Rapport ou mémoire (Stage d'été)
Sujets:Science des matériaux, mécanique, génie mécanique
Physique, optique
Code ID :6943
Déposé par :Alexandru Prodan
Déposé le :13 juill. 2020 11:40
Dernière modification:13 juill. 2020 11:40

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