Publications associées à Explosion nucléaire pacifique

Pierluigi Bruzzone, Kamil Sedlák, Nikolay Bykovskiy, Rainer Wesche

With the first tokamak designed for full nuclear operation now well into final assembly (ITER), and a major new research tokamak starting commissioning (JT60SA), nuclear fusion is becoming a mainstream potential energy source for the future. A critical par ...

IOP PUBLISHING LTD2021

The Pristine survey - XIV. Chemical analysis of two ultra-metal-poor stars

Pascale Jablonka, Carmela Lardo

Elemental abundances of the most metal-poor stars reflect the conditions in the early Galaxy and the properties of the first stars. We present a spectroscopic follow-up of two ultra-metal-poor stars ([Fe/H] < -4.0) identified by the survey Pristine: Pristi ...

OXFORD UNIV PRESS2021

Assessment of representativity of the PETALE experiments for validation of Swiss LWRs ex-core dosimetry calculations

Andreas Pautz, Vincent Pierre Lamirand, Hakim Ferroukhi, Dimitri Rochman, Axel Guy Marie Laureau, Alexander Vasiliev

The international experimental program PETALE will be carried out at the CROCUS research reactor of EPFL. The program aims at measuring neutron penetration in slabs made of materials composing typical LWR reactor pressure vessel. The measurements will be u ...

E D P SCIENCES2020

Uncertainty propagation based on correlated sampling technique for nuclear data applications

Andreas Pautz, Vincent Pierre Lamirand, Dimitri Rochman, Axel Guy Marie Laureau

A correlated sampling technique has been implemented to estimate the impact of cross section modifications on the neutron transport and in Monte Carlo simulations in one single calculation. This implementation has been coupled to a Total Monte Carlo approa ...

2020

Bayesian Monte Carlo assimilation for the PETALE experimental programme using inter-dosimeter correlation

Andreas Pautz, Vincent Pierre Lamirand, Dimitri Rochman, Axel Guy Marie Laureau

This article presents the methodology developed to generate and use dosimeter covariances and to estimate nuisance parameters for the PETALE experimental programme. In anticipation of the final experimental results, this work investigates the consideration ...

2020

Applying SHARK-X to perform data assimilation with the LWR-PROTEUS Phase II integral experiments

Andreas Pautz, Mathieu Hursin, Daniel Jerôme Siefman

Data assimilation methods have recently been implemented in the sensitivity analysis and uncertainty quantification tool SHARK-X. This paper presents how they were used with sensitivity coefficients and randomly-sampled nuclear data to simulate integral pa ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Data assimilation of post irradiation examination experiments to adjust fission yields

Andreas Pautz, Mathieu Hursin, Daniel Jerôme Siefman

Nuclear data, especially fission yields, create uncertainties in the predicted concentrations of fission products in spent fuel. Herein, we present a new framework that extends data assimilation methods to burnup simulations by using data from post-irradia ...

E D P SCIENCES2020

On data assimilation with Monte-Carlo-calculated and statistically uncertain sensitivity coefficients

Andreas Pautz, Mathieu Hursin, Daniel Jerôme Siefman

Sensitivity coefficients from Monte Carlo neutron transport codes have uncertainties that can affect nuclear data adjustments with integral experiments. This paper presents an extended version of Generalized Linear Least Squares (GLLS), called xGLLS, that ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Data assimilation of post-irradiation examination data for fission yields from GEF

Andreas Pautz, Mathieu Hursin, Dimitri Rochman, Daniel Jerôme Siefman

Nuclear data, especially fission yields, create uncertainties in the predicted concentrations of fission products in spent fuel which can exceed engineering target accuracies. Herein, we present a new framework that extends data assimilation methods to bur ...

EDP SCIENCES S A2020

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Explosion nucléaire pacifique

Data-Driven Predictive Models: Calculational Bias in Characterization of Spent Nuclear Fuel

Superconductors for fusion: a roadmap

The Pristine survey - XIV. Chemical analysis of two ultra-metal-poor stars

Assessment of representativity of the PETALE experiments for validation of Swiss LWRs ex-core dosimetry calculations

Uncertainty propagation based on correlated sampling technique for nuclear data applications

Bayesian Monte Carlo assimilation for the PETALE experimental programme using inter-dosimeter correlation

Applying SHARK-X to perform data assimilation with the LWR-PROTEUS Phase II integral experiments

Data assimilation of post irradiation examination experiments to adjust fission yields

On data assimilation with Monte-Carlo-calculated and statistically uncertain sensitivity coefficients

Data assimilation of post-irradiation examination data for fission yields from GEF

Graph Chatbot

Chattez avec Graph Search

The Pristine survey - XIV. Chemical analysis of two ultra-metal-poor stars

Assessment of representativity of the PETALE experiments for validation of Swiss LWRs ex-core dosimetry calculations

Uncertainty propagation based on correlated sampling technique for nuclear data applications

Superconductors for fusion: a roadmap

Data-Driven Predictive Models: Calculational Bias in Characterization of Spent Nuclear Fuel

Applying SHARK-X to perform data assimilation with the LWR-PROTEUS Phase II integral experiments

Bayesian Monte Carlo assimilation for the PETALE experimental programme using inter-dosimeter correlation

Data assimilation of post-irradiation examination data for fission yields from GEF

On data assimilation with Monte-Carlo-calculated and statistically uncertain sensitivity coefficients

Data assimilation of post irradiation examination experiments to adjust fission yields