Prague, 28 June 2017
The European Physical Journal (EPJ) is a series of peer-reviewed journals covering the whole spectrum of physics and related interdisciplinary subjects. EPJ is committed to high scientific quality in publishing and is indexed in all main citation databases.
- Published on Wednesday, 14 June 2017 14:36
In the general framework of transient coupled calculations, new developments of an accurate neutron kinetics model able to characterize spatial decoupling are described, together with an application to sodium fast reactors.
The first paper presents the adaptation of the spatial kinetic Transient Fission Matrix (TFM) approach to fast neutron spectrum heterogeneous cores. This TFM approach is based on a neutronic Monte Carlo pre-calculation, condensing the time dependent response of the system in Green functions. The new developments presented here concern the addition of a correlated sampling technique that takes into account the impact of local perturbations (coolant density, Doppler effect) on the neutron transport.
The second paper is dedicated to a validation of this kinetic approach on sodium fast reactors. An application case representative of an assembly of the low void effect sodium fast reactor ASTRID is used to study the physics of this kind of system, illustrating the interesting capabilities provided by this approach and highlighting new possible calculation schemes. Different comparisons have been performed with direct Monte Carlo and ERANOS deterministic SN calculations on flux redistribution and reactivity estimation, together with calculations of local point kinetics feedback distributions.
Open calls for papers
Orsay, France, 3-7 July 2017
Warsaw, Poland, 5-7 July 2017
Cologne, Germany, 10-13 July 2017
Utrecht, The Netherlands, 10-15 July 2017
Durham, UK, 17-21 July 2017
Ljubljana, Slovenia, 17-21 July 2017
Magnetic Island, Queensland, Australia, 22-24 July 2017
Geneva, Switzerland, 23-25 July 2017
Cairns, Australia, 26 July - 1 August 2017
Glasgow, UK, 4-7 September 2017
Trento, Italy, 11-15 September 2017