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# THE NEW NEUTRON NOISE SOLVER OF THE MONTE CARLO CODE TRIPOLI-4

Am´elie Rouchon,Walid Jarrah and Andrea Zoia

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{
"description": "<p>Neutron noise appears as fluctuations of the neutron field induced by vibrations of fuel elements,<br>\ncontrol rods or any other mechanical structures in the core, as well as from global<br>\nor local fluctuations in the flow, density or void fraction of the coolant. Neutron noise<br>\nequations are obtained by assuming small perturbations of macroscopic cross-sections<br>\naround a steady-state neutron field and by subsequently taking the Fourier transform in<br>\nthe frequency domain. Recently, a new Monte Carlo algorithm was proposed in order to<br>\nsolve the transport equation in neutron noise theory with complex-valued weights and a<br>\nmodified collision operator. This paper presents the new neutron noise solver based on<br>\nthese methods and implemented in the reference Monte Carlo code TRIPOLI-4R &nbsp;developed<br>\nat CEA. We illustrate the capabilities of the solver by considering the noise analysis<br>\nof a UOX PWR assembly.</p>",
"license": "https://creativecommons.org/licenses/by/4.0/legalcode",
"creator": [
{
"affiliation": "CEA (SERMA)",
"@type": "Person",
"name": "Am\u00b4elie Rouchon,Walid Jarrah and Andrea Zoia"
}
],
"headline": "THE NEW NEUTRON NOISE SOLVER OF THE MONTE CARLO CODE TRIPOLI-4",
"image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg",
"datePublished": "2019-08-25",
"url": "https://zenodo.org/record/3567587",
"@type": "ScholarlyArticle",
"keywords": [
"Neutron noise, Monte Carlo, TRIPOLI-4 R  , Frequency domain, Complex statistical weights"
],
"@context": "https://schema.org/",
"identifier": "https://doi.org/10.5281/zenodo.3567587",
"@id": "https://doi.org/10.5281/zenodo.3567587",
"workFeatured": {
"url": "https://www.mc2019.org/",
"alternateName": "M&C 2019",
"location": "Portland, Oregon, USA",
"@type": "Event",
"name": "Mathematics & Computational Methods Applied to Nuclear Science & Engineering"
},
"name": "THE NEW NEUTRON NOISE SOLVER OF THE MONTE CARLO CODE TRIPOLI-4"
}
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