Published 1989 | Version v1
Miscellaneous Metadata-only

Measurements in the IEA-R1 reactor core using self-powered neutron detectors

Creators

  • 1. Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo, SP (Brazil). Div. de Fisica de Reatores

Description

The use of self-powered neutron detectors (SPNDs) for incore instrumentation is steadly gaining importance for nuclear reactor operation and control. At IPEN-CNEN/SP an experimental program to design, built and test several spnd prototypes with cobalt and platinum emitters has been initiated. These detectors will be take part of an in-core detector system of the IEA-R1 Reactor. To investigate the performance of these spnd detectors an experiment was developed to irradiated the detector in the IEA-R1 core. The thermal sensivities, linearity, response and contribution of the corrent signal due to compensation cable to the total current were obtained. (author)

Availability note (English)

Available from the Library of Comissao Nacional de Energia Nuclear , RJ, Brazil.

Abstract (Portuguese)

Com a crescente importancia que se vem dando ao uso de detectores de neutrons auto-alimentados (Self-Powered) na instrumentacao do nucleo de reatores de potencia, tanto medidas de distribuicao de fluxo de neutrons no nucleo, de modo que eficiencia da geracao de potencia possa ser otimizada, quanto como um sistema de resposta rapida que meca o fluxo de neutrons local, servindo como monitor de seguranca para deteccao de queima excessiva de combustivel, foi iniciado no IPEN-CNEN/SP o projeto de construcao, testes e utilizacao de detectores 'Self-Powered' com emissores de Cobalto e Platina que farao parte da cadeia de um sistema de medidas 'in-core' no Reator IEA-R1. Para se avaliar a performance dos detectores fabricados, foram realizados varias medidas no nucleo do reator obtendo-se os valores das sensibilidades, linearidade, respostas as variacoes de potencia e, a contribuicao do sinal de corrente devido ao cabo de compensacao na corrente total medida. Os resultados obtidos foram comparados aos existentes na literatura. (autor)

Additional details

Additional titles

Original title (Portuguese)
Medidas no nucleo do reator IEA-R1 com detetores de neutrons do tipo self-powered

Publishing Information

Imprint Title
Proceedings of the 7. National Meeting of Reactor Physics and Thermohydraulic. v. 1
Imprint Pagination
416 p.
Journal Page Range
p. 363-374.

Conference

Title
7. National Meeting of Reactor Physics and Thermohydraulic.
Dates
26-28 Apr 1989.
Place
Recife, PE (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
20061292
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
IEAR-1 REACTOR; NEUTRON FLUX; PERFORMANCE; REACTOR CORES; SELF-POWERED NEUTRON DETECTORS; SENSITIVITY; SPATIAL DISTRIBUTION; USES
Descriptors DEC
DISTRIBUTION; ENRICHED URANIUM REACTORS; MEASURING INSTRUMENTS; NEUTRON DETECTORS; POOL TYPE REACTORS; RADIATION DETECTORS; RADIATION FLUX; REACTOR COMPONENTS; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SELF-POWERED DETECTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
Imprint:Anais do 7. Encontro Nacional de Fisica de Reatores e Termohidraulica. v. 1.