A reactivity meter with uncertainties
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Annals of Nuclear Energy
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Resumo
Three sets of effective kinetics parameters were measured and evaluated for the fuel rod core of the IPEN/MB-01
research reactor. A correlation matrix among all these effective kinetics parameters is taking into account to
reduce the inferred reactivity uncertainties. This work considers the propagation of the uncertainties inherent in
these sets of effective delayed neutron parameters to the inferred reactivities. The comparisons to the reactivity
and its uncertainty values produced by the Inhour Equation came into a very good agreement and reinforces the
validity of the whole procedure for the development of this reactivity meter with uncertainties. The reduction of
the reactivity uncertainty values compared to previous works is significant. The analyses of some specific cases of
the evaluation IPEN(MB01)-LWR-RESR-015 reveal that its reactivity values are in accordance with those of this
work. However, its reactivity uncertainty values for positive reactivities seems to cancel the uncorrelated
component of the uncertainties.
Como referenciar
SANTOS, ADIMIR dos. A reactivity meter with uncertainties. Annals of Nuclear Energy, v. 202, p. 1-10, 2024. DOI: 10.1016/j.anucene.2024.110463. Disponível em: https://repositorio.ipen.br/handle/123456789/48060. Acesso em: 29 Apr 2026.
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.