Published 1989 | Version v1
Miscellaneous Metadata-only

In core system mapping reactor power distribution

Creators

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

Description

Based on the signals of SPND'S (Self Powered Neutron Detectors) distributed inside of a core, the spatial power distribution is obtained using the MAP program, developed in this work. The methodology applied in MAP program uses a least mean square technique to calculate expansion coefficients that depend on the SPND'S signals. The final power or neutron flux distribution is obtained by a combination of certains functions or expansion modes that are provided from diffusion calculation with the CITATION code. The MAP program is written in PASCAL language and will be used in IEA-R1 reactor for assisting its operation. (author)

Availability note (English)

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

Abstract (Portuguese)

A partir de informacoes fornecidas por detectores SPND'S ('Self Powered Neutron Detectors'), distribuidos no interior do nucleo de um reator, obtem-se a distribuicao de potencia espacial, atraves do programa MAP, desenvolvido no presente trabalho. A metodologia consiste em obter a distribuicao final de potencia, pela combinacao de certas funcoes ou modos de expansao, obtidos previamente por calculo de difusao, com o programa CITATION. Os coeficientes de expansao sao obtidos por meio de tecnica de minimos quadrados, a partir dos sinais fornecidos pelos detectores. O programa MAP esta elaborado em linguagem PASCAL, para ser utilizado no acompanhamento de operacao no reator IEA-R1. (autor)

Additional details

Additional titles

Original title (Portuguese)
Sistema 'in core' para mapeamento da distribuicao de potencia no reator

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. 375-385.

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
20061293
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
COMPUTER CALCULATIONS; IEAR-1 REACTOR; M CODES; POWER DISTRIBUTION; REACTOR CORES; REACTOR OPERATION; SELF-POWERED NEUTRON DETECTORS; SPATIAL DISTRIBUTION
Descriptors DEC
COMPUTER CODES; DISTRIBUTION; ENRICHED URANIUM REACTORS; MEASURING INSTRUMENTS; NEUTRON DETECTORS; OPERATION; POOL TYPE REACTORS; RADIATION DETECTORS; 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.