HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Local correlated sampling Monte Carlo calculations in the TFM neutronics approach for spatial and point kinetics applications

Abstract : These studies are performed in the general framework of transient coupled calculations with accurate neutron kinetics models. This kind of application requires a modeling of the influence on the neutronics of the macroscopic cross-section evolution. Depending on the targeted accuracy, this feedback can be limited to the reactivity for point kinetics, or can take into account the redistribution of the power in the core for spatial kinetics. The local correlated sampling technique for Monte Carlo calculation presented in this paper has been developed for this purpose, i.e. estimating the influence on the neutron transport of a local variation of different parameters such as sodium density or fuel Doppler effect. This method is associated to an innovative spatial kinetics model named Transient Fission Matrix, which condenses the time-dependent Monte Carlo neutronic response in Green functions. Finally, an accurate estimation of the feedback effects on these Green functions provides an on-the-fly prediction of the flux redistribution in the core, whatever the actual perturbation shape is during the transient. This approach is also used to estimate local feedback effects for point kinetics resolution.
Document type :
Journal articles
Complete list of metadata

Cited literature [20 references]  Display  Hide  Download

Contributor : Bruno Savelli Connect in order to contact the contributor
Submitted on : Friday, October 4, 2019 - 3:39:45 PM
Last modification on : Wednesday, March 3, 2021 - 3:34:01 PM


Publisher files allowed on an open archive


Distributed under a Creative Commons Attribution 4.0 International License




Axel Laureau, Laurent Buiron, Bruno Fontaine. Local correlated sampling Monte Carlo calculations in the TFM neutronics approach for spatial and point kinetics applications. EPJ N - Nuclear Sciences & Technologies, EDP Sciences, 2017, 3, pp.16. ⟨10.1051/epjn/2017011⟩. ⟨cea-02305849⟩



Record views


Files downloads