Iea R1 Research Reactor
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Aplicação de métodos não destrutivos para qualificação de combustíveis tipo dispersão de U308-Al e U3Si2-Al no reator IEA-R1 / Application of non-destructive methods for qualification of the U3O8-Al and U3Si2-Al dispersion fuels in the IEA-R1 Reactor
IPEN/CNEN-SP manufactures fuels to be used in its nuclear research reactor the IEA-R1. To qualify those fuels, it is necessary to check if they have a good performance under irradiation. As Brazil doesnt have nuclear research reactors with high neutron fluxes, or suitable hot cells for carrying out post-irradiation examination of nuclear fuels, IPEN/CNEN-SP
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/11/2011
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2. Procedimento de fabricação de elementos combustível a base de dispersão com alta concentração de urânio / Fabrication procedures for manufacturing high uranium concentration dispersion fuel elements
IPEN-CNEN/SP developed the technology to produce the dispersion type fuel elements for research reactors and made it available for routine production. Today, the fuel produced in IPEN-CNEN/SP is limited to the uranium concentration of 3.0 gU/cm3 for U3Si2-Al dispersion-based and 2.3 gU/cm3 for U3O8-Al dispersion. The increase of uranium concentration in fuel
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/11/2011
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3. Análise das variáveis de entrada de uma rede neural usando teste de correlação e análise de correlação canônica / Analysis of input variables of an artificial neural network using bivariate correlation and canonical correlation
The monitoring of variables and diagnosis of sensor fault in nuclear power plants or processes industries is very important because an early diagnosis allows the correction of the fault and, like this, do not cause the production interruption, improving operators security and its not provoking economics losses. The objective of this work is, in the whole of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2011
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4. Desenvolvimento e implementação de um novo sistema pneumático de transferência para irradiação de materiais no reator IEA-R1 / Development and implementation of a new pneumatic transfer system for materials irradiation at IEA-R1 reactor
Pneumatic Transfer Systems (PTS) are classified as mechanical equipment largely operated all over the world for transport of a huge sort of objects, samples and materials located at nearly terminals or even at separated ones. System applicability is often recognized in many activities, such as medicine (hospital settings, clinical analysis labs), industry (s
Publicado em: 2011
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5. Projeto e implantação de melhorias na blindagem biológica da instalação para estudos em BNCT / Improvements at the biological shielding of BNCT research facility in the IEA-R1 reactor
A técnica de captura de nêutrons em Boro é uma técnica promissora de tratamento de câncer, ela usa do alto LET das partículas provenientes da reação 10B(n,α)7Li para destruir as células cancerígenas. O desenvolvimento desta técnica começou em meados da década de 50 e até hoje ela é alvo de estudos e pesquisas em diversos centros espalhad
Publicado em: 2011
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6. ESTIMATIVE OF CORE DAMAGE FREQUENCY IN IPEN`S IEA-R1 RESEARCH REACTOR (PSA LEVEL 1) DUE TO THE INITIATING EVENT OF LOSS OF COOLANT CAUSED BY LARGE RUPTURE IN THE PIPE OF THE PRIMARY CIRCUIT / Estimativa da frequência de danos ao núcleo devido a perda de refrigerante primário e bloqueio de canal de refrigeração do Reator de Pesquisas IEA-R1 do IPEN -CNEN/SP -APS nível1
Neste trabalho é aplicada a metodologia da Análise Probabilística de Segurança nível 1 ao reator IEA-R1. Inicialmente são descritos os eventos iniciadores de acidentes identificados no reator para duas categorias: perda de vazão e perda de refrigerante primário. Dentre eles foram escolhidos dois eventos iniciadores para análise mais detalhada do aci
Publicado em: 2009
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7. Estudo de fatores humanos, e observação dos seus aspectos básicos, focados em operadores do reator de pesquisa IEA-R1, objetivando a prevenção de acidentes ocasionados por falhas humanas / STUDY OF HUMAN FACTORS, AND ITS BASIC ASPECTS, FOCUSING THE IEA-R1 RESEARCH REACTOR OPERATORS, AIMING AT THE PREVENTION OF ACCIDENTS CAUSED BY HUMAN FAILURES
This work presents a study of human factors and possible human failure reasons that can cause incidents, accidents and workers exposition, associated to risks intrinsic to the profession. The objective is to contribute with the operators of IEA-R1 reactor located at IPEN CNEN/SP. Accidents in the technological field, including the nuclear, have shown that th
Publicado em: 2008
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8. Caracterização do campo de nêutrons na instalação para estudo em BNCT no Reator IEA-R1 / NEUTRON FIELD CHARACTERIZATION IN THE INSTALLATION FOR BNCT STUDY IN THE IEA R1 REACTOR.
This work aims to characterize the mixed neutron and gamma field, in the sample irradiation position, in a research installation for Boron Neutron Capture Therapy (BNCT), in the IPEN IEA-R1 reactor. The BNCT technique has been studied as a safe and selective option in the treatment of resistant cancerigenous tumors or considered non-curable by the convention
Publicado em: 2008
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9. RELATIONAL DATABASE HYBRID MODEL, OF HIGH PERFOMANCE AND STORAGING CAPACITY, FOR NUCLEAR ENGINEERING APPLICATIONS / Modelo híbrido de banco de dados relacional, de alto desempenho e capacidade de armazenamento, para aplicações voltadas à Engenharia Nuclear
The objective of this work is to present the relational database, named FALCAO. It was created and implemented to support the storaging of the monitored variables in the IEA-R1 research reactor, located in the Instituto de Pesquisas Energéticas e Nucleares, IPEN CNEN/SP. The data logical model and its direct influence in the integrity of the provided inform
Publicado em: 2008
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10. Determinação de elementos essenciais e tóxicos em cogumelos comestíveis por análise por ativação com nêutrons / ESSENTIAL AND TOXIC ELEMENT DETERMINATION IN EDIBLE MUSHROOMS BY NEUTRON ACTIVATION ANALYSIS
In this study concentrations of As, Br, Co, Cr, Cs, Fe, K, Na, Rb, Se and Zn were determined in edible mushrooms acquired from commercial establishments in the city of São Paulo and directly from Mogi das Cruzes, Suzano, Juquitiba and Mirandópolis producers. The analytical technnique used for determining these elements in edible mushrooms was Instrumental
Publicado em: 2008
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11. DEVELOPMENT OF AN ARTIFICIAL NEURAL NETWORK FOR MONITORING AND DIAGNOSIS OF SENSOR FAULT AND DETECTION IN THE IEA-R1 RESEARCH REACTOR AT IPEN / "Utilização de redes neurais artificiais na monitoração e detecção de falhas em sensores do Reator IEA-R1"
The increasing demand on quality in production processes has encouraged the development of several studies on Monitoring and Diagnosis Systems in industrial plant, where the interruption of the production due to some unexpected change can bring risk to the operators security besides provoking economic losses, increasing the costs to repair some damaged equ
Publicado em: 2006
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12. "Desenvolvimento de um Simulador de Treinamento para Operadores do Reator de Pesquisa IEA-R1" / DEVELOPMENT OF A TRAINING SIMULATOR TO OPERATORS OF THE IEA-R1 RESEARCH REACTOR
Este trabalho apresenta o desenvolvimento de um Simulador do Reator de Pesquisa IEAR1. O Simulador foi desenvolvido com Visual C++ em duas etapas: 1) construção dos modelos matemáticos e 2) criação e configuração de interfaces gráficas em um aplicativo Windows XP. Utilizou-se uma modelagem simplificada dos principais fenômenos físicos: o nuclear at
Publicado em: 2006