Neutron noise simulations in a heterogeneous system: A comparison between a diffusion-based and a discrete ordinates solver
Paper i proceeding, 2019

A comparative study on two neutron noise solvers is presented. The first solver is the simulator CORE SIM which is based on neutron diffusion theory, while the second one makes use of a discrete ordinates method. For the comparison, a two-dimensional, heterogeneous critical system with a localized perturbation, is considered. The perturbation is defined as a fluctuation of the macroscopic neutron capture cross-section in one point of the system. Differences can be found between the two solvers because of the heterogeneities of the system and the perturbation.

neutron noise

discrete ordinates

diffusion theory


Antonios Mylonakis

Chalmers, Fysik, Subatomär fysik och plasmafysik

Huaiqian Yi

Chalmers, Fysik, Subatomär fysik och plasmafysik

Paolo Vinai

Chalmers, Fysik, Subatomär fysik och plasmafysik

Christophe Demaziere

Chalmers, Fysik, Subatomär fysik och plasmafysik

Proceedings of M&C 2019


The International Conference on Mathematics and Computational Methods applied to Nuclear Science and Engienering - M&C 2019
Portland, USA,

Core monitoring techniques and experimental validation and demonstration (CORTEX)

Europeiska kommissionen (Horisont 2020), 2017-09-01 -- 2021-08-31.


Övrig annan teknik

Annan fysik



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