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**Harvard**

Dykin, V., Pázsit, I. och Sanchez, R. (2016) *Remark on the neutron noise induced by propagating perturbations in an MSR*.

** BibTeX **

@article{

Dykin2016,

author={Dykin, Victor and Pázsit, Imre and Sanchez, Richard},

title={Remark on the neutron noise induced by propagating perturbations in an MSR},

journal={Annals of Nuclear Energy},

issn={0306-4549},

volume={90},

pages={93-105},

abstract={The neutron noise induced by propagating perturbations in a simple model of a Molten Salt Reactor (MSR) is calculated and analyzed using one/two-group diffusion theory. The novelty, as compared to previous works, is that the noise source includes also the fluctuations of the fission cross sections and the fluid velocity, in addition to the previous case when only the fluctuations of the absorption cross section were accounted for. Another novelty is that the solution is obtained through the matrix Green's function of the flux and precursor equations, these two being kept separate. Inclusion of each of these two new noise sources leads to a structure of the noise source, and hence also that of the neutron noise, which is conceptually different from the case when only the fluctuations of the absorption cross sections are treated, with some surprising features. The use of the matrix Green's function is advantageous to understand the new features, and it helps to point out some new aspects of the neutron noise even in traditional systems, which have not been noticed before. The results contribute to the understanding and interpretation of the neutron noise in MSRs. (C) 2015 Elsevier Ltd. All rights reserved.},

year={2016},

keywords={Neutron noise, MSR, Propagating perturbations, Greens function, Fuel velocity fluctuations},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 233290

A1 Dykin, Victor

A1 Pázsit, Imre

A1 Sanchez, Richard

T1 Remark on the neutron noise induced by propagating perturbations in an MSR

YR 2016

JF Annals of Nuclear Energy

SN 0306-4549

VO 90

SP 93

AB The neutron noise induced by propagating perturbations in a simple model of a Molten Salt Reactor (MSR) is calculated and analyzed using one/two-group diffusion theory. The novelty, as compared to previous works, is that the noise source includes also the fluctuations of the fission cross sections and the fluid velocity, in addition to the previous case when only the fluctuations of the absorption cross section were accounted for. Another novelty is that the solution is obtained through the matrix Green's function of the flux and precursor equations, these two being kept separate. Inclusion of each of these two new noise sources leads to a structure of the noise source, and hence also that of the neutron noise, which is conceptually different from the case when only the fluctuations of the absorption cross sections are treated, with some surprising features. The use of the matrix Green's function is advantageous to understand the new features, and it helps to point out some new aspects of the neutron noise even in traditional systems, which have not been noticed before. The results contribute to the understanding and interpretation of the neutron noise in MSRs. (C) 2015 Elsevier Ltd. All rights reserved.

LA eng

DO 10.1016/j.anucene.2015.11.033

LK http://dx.doi.org/10.1016/j.anucene.2015.11.033

OL 30