Zero-power noise up to 100 kHz in the IPEN/MB-01 research reactor facility
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2021
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Annals of Nuclear Energy
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Resumo
Subcritical 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.
Como referenciar
SANTOS, DIOGO F. dos; SANTOS, ADIMIR dos. Zero-power noise up to 100 kHz in the IPEN/MB-01 research reactor facility. Annals of Nuclear Energy, v. 152, p. 1-16, 2021. DOI: 10.1016/j.anucene.2020.107974. Disponível em: http://repositorio.ipen.br/handle/123456789/31967. Acesso em: 25 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.