[HTML][HTML] Frequency-domain models in the SPN approximation for neutron noise calculations
Simulations of the neutron flux fluctuations, known as neutron noise, can be performed by
means of the spherical harmonics equations (SP N) approximation with higher accuracy …
means of the spherical harmonics equations (SP N) approximation with higher accuracy …
[HTML][HTML] Modeling noise experiments performed at AKR-2 and CROCUS zero-power reactors
Abstract CORTEX is a EU H2020 project (2017-2021) devoted to the analysis of'reactor
neutron noise'in nuclear reactors, ie the small fluctuations occurring around the stationary …
neutron noise'in nuclear reactors, ie the small fluctuations occurring around the stationary …
Advanced numerical simulation and modeling for reactor safety–contributions from the CORTEX, McSAFER, and METIS projects
C Demazière, VH Sanchez-Espinoza… - EPJ Nuclear Sciences & …, 2022 - epjn.epj.org
This paper gives an account of three projects funded by the European Union that heavily
rely on numerical modeling and simulations of nuclear reactors: the CORTEX project (CORe …
rely on numerical modeling and simulations of nuclear reactors: the CORTEX project (CORe …
[HTML][HTML] On the simulation of neutron noise using a discrete ordinates method
H Yi, P Vinai, C Demazière - Annals of Nuclear Energy, 2021 - Elsevier
The method of discrete ordinates is investigated for neutron noise simulations in the
frequency domain. For this purpose, the solver NOISE-SN is developed and used to …
frequency domain. For this purpose, the solver NOISE-SN is developed and used to …
Variance reduction and noise source sampling techniques for Monte Carlo simulations of neutron noise induced by mechanical vibrations
H Belanger, D Mancusi, A Rouchon… - Nuclear Science and …, 2023 - Taylor & Francis
Neutron noise in nuclear power reactors refers to the small fluctuations around the average
neutron flux at steady state resulting from time-dependent perturbations inside the core. The …
neutron flux at steady state resulting from time-dependent perturbations inside the core. The …
[HTML][HTML] Understanding the neutron noise induced by fuel assembly vibrations in linear theory
C Demaziere, A Rouchon, A Zoia - Annals of nuclear energy, 2022 - Elsevier
This paper investigates the underlying physical mechanisms involved in the monochromatic
vibrations of fuel assemblies and their effects on the induced neutron noise throughout the …
vibrations of fuel assemblies and their effects on the induced neutron noise throughout the …
[HTML][HTML] On the simulation of neutron noise induced by vibrations of fuel pins in a fuel assembly
Vibrations of fuel assemblies are an important issue in the safe operation of nuclear
reactors, because they can challenge the integrity of the fuel with potential for radioactive …
reactors, because they can challenge the integrity of the fuel with potential for radioactive …
[HTML][HTML] A memory-efficient neutron noise algorithm for reactor physics
P Cosgrove, M Kraus, V Raffuzzi - Annals of Nuclear Energy, 2024 - Elsevier
The neutron noise equation contains a fixed source term where the neutron angular flux is
present. Deterministic noise solvers have tended to solve for and store this angular flux term …
present. Deterministic noise solvers have tended to solve for and store this angular flux term …
[PDF][PDF] Development and comparison of high-order solvers for reactor noise analysis
In the CORTEX project, solvers and procedures based on Monte Carlo and on deterministic
higher-order transport methods are developed and compared for neutron noise simulations …
higher-order transport methods are developed and compared for neutron noise simulations …
[PDF][PDF] Variance reduction techniques for Monte Carlo neutron noise simulations
ABSTRACT Advanced Monte Carlo methods have been recently proposed in order to solve
the neutron noise equations in the frequency domain, which allows establishing reference …
the neutron noise equations in the frequency domain, which allows establishing reference …