Zero-power noise up to 100 kHz in the IPEN/MB-01 research reactor facility

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dc.contributor.authorSANTOS, DIOGO F. dospt_BR
dc.contributor.authorSANTOS, ADIMIR dospt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2021-04-05T18:21:46Z
dc.date.available2021-04-05T18:21:46Z
dc.date.issued2021pt_BR
dc.description.abstractSubcritical noise experiments at frequencies up to 100 kHz employing two distinct boron dilution in the reactor tank water (286.8 and 578.6 ppm of natural boron) were performed in the IPEN/MB-01 reactor. The Auto Power Spectral Densities (APSD) were inferred employing the IPEN/MB-01 Correlator and were best described by a four-mode decay model up to about 70 kHz. The analyses reveal that the first two modes were related to thermal neutron and the other two to the fast ones. The coupling between thermal and fast neutrons was weak, and they could be considered uncoupled. A two-region two-group kinetic model was built and for the first time important parameters, such as the subcritical reactivities, generation times, and the prompt neutron decay constants all in the core and reflector in the 286.8 ppm case were inferred. The experiments can be considered unique of its kind and the theory/experiment comparisons reached good agreements.pt_BR
dc.format.extent1-16pt_BR
dc.identifier.citationSANTOS, DIOGO F. dos; SANTOS, ADIMIR dos. Zero-power noise up to 100 kHz in the IPEN/MB-01 research reactor facility. <b>Annals of Nuclear Energy</b>, v. 152, p. 1-16, 2021. DOI: <a href="https://dx.doi.org/10.1016/j.anucene.2020.107974">10.1016/j.anucene.2020.107974</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/31967.
dc.identifier.doi10.1016/j.anucene.2020.107974pt_BR
dc.identifier.issn0306-4549pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5989-5705
dc.identifier.percentilfi63.24pt_BR
dc.identifier.percentilfiCiteScore66.00
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/31967
dc.identifier.vol152pt_BR
dc.relation.ispartofAnnals of Nuclear Energypt_BR
dc.rightsopenAccesspt_BR
dc.subjectzero power reactors
dc.subjectreactor noise
dc.subjectipen-mb-1 reactor
dc.subjectspectral density
dc.subjectcriticality
dc.subjectfrequency measurement
dc.subjectlifetime
dc.subjectneutrons
dc.titleZero-power noise up to 100 kHz in the IPEN/MB-01 research reactor facilitypt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorADIMIR DOS SANTOS
ipen.autorDIOGO FELICIANO DOS SANTOS
ipen.codigoautor35
ipen.codigoautor11272
ipen.contributor.ipenauthorADIMIR DOS SANTOS
ipen.contributor.ipenauthorDIOGO FELICIANO DOS SANTOS
ipen.date.recebimento21-04
ipen.identifier.fi1.810pt_BR
ipen.identifier.fiCiteScore3.5
ipen.identifier.ipendoc27738pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi50.00 - 74.99
ipen.type.genreArtigo
relation.isAuthorOfPublication028075df-b2b9-4e6a-a300-e744b2a9d63f
relation.isAuthorOfPublicationf853d397-4971-47c5-a915-dba987cc4a13
relation.isAuthorOfPublication.latestForDiscoveryf853d397-4971-47c5-a915-dba987cc4a13
sigepi.autor.atividadeSANTOS, ADIMIR dos:35:420:Npt_BR
sigepi.autor.atividadeSANTOS, DIOGO F. dos:11272:420:Spt_BR
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