Published November 1980 | Version v1
Report Open

Experimental fast reactors: self sustained symetric and asymetric oscyllations and viability as a source of pulse neutrons

Creators

Description

A stability criterion was established beginning from the transfer functions to the 'zero power' and feedback. Through an analogycal simulation effects referring to the reactivity periodical insertion with wide amplitude, oscillation treatment introduced by radial movements of the fuel element and eigensupported oscillations were studied. The possibility of as a reactor operating as a source of pulsed neutrons was established through a non linear treatment. The stability of reactor working in this system was studied embracing harmonics of elevated order. (Author)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

A partir das funcoes de transferencia a 'potencia zero' e de retroalimentacao, foi estabelecido um criterio de estabilidade. Atraves de simulacao analogica foram estudados efeitos referentes a insercao periodica de reatividade com grande amplitude, tratamento das oscilacoes introduzidas pelos movimentos radiais do elemento combustivel e oscilacoes auto-sustentadas. A possibilidade de um reator operar como fonte de neutrons pulsada foi estabelecida atraves de um tratamento nao-linear. A estabilidade do reator funcionando neste regime foi estudada abrangendo harmonicos de ordem elevada. (Autor)

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Additional details

Additional titles

Original title (Portuguese)
Oscilacoes simetricas e assimetricas auto sustentadas em reatores rapidos experimentais; viabilidade do desempenho como fonte de neutrons pulsados

Publishing Information

Imprint Pagination
60 p.
Report number
CTA-EAV--018/80

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
13687404
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
FAST REACTORS; FEASIBILITY STUDIES; NONLINEAR PROBLEMS; OSCILLATIONS; PULSED NEUTRON TECHNIQUES; REACTOR STABILITY; SIMULATION
Descriptors DEC
EPITHERMAL REACTORS; REACTORS; STABILITY