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Prado, M.A.S. do; Reis, L.C.A.
Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG (Brazil)1984
Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG (Brazil)1984
AbstractAbstract
[en] Estimates of solid and liquid radioactive wastes produced in CDTN, the foreseen treatment and the responsibilities of various organs of CDTN involved in radioactive waste management are presented. (C.M.)
Original Title
Gestao de rejeitos radioativos (solidos e liquidos) do CDTN
Primary Subject
Source
1984; 7 p
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Bittencourt, J.A.; Del Bosco, E.; Dallaqua, R.S.; Ludwig, G.O.
Proceedings of the Energy Independence Conference: Fusion Energy and Plasma Physics1987
Proceedings of the Energy Independence Conference: Fusion Energy and Plasma Physics1987
AbstractAbstract
No abstract available
Primary Subject
Source
Sociedade Brasileira de Fisica, Rio de Janeiro; 135 p; 1987; p. 63; Energy Independence Conference: Fusion Energy and Plasma Physics; Rio de Janeiro, RJ (Brazil); 17-21 Aug 1987; Published in summary form only.
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Bittencourt, J.A.; Del Bosco, E.; Dallaqua, R.S.; Ludwig, G.O.
Proceedings of the Energy Independence Conference: Fusion Energy and Plasma Physics1987
Proceedings of the Energy Independence Conference: Fusion Energy and Plasma Physics1987
AbstractAbstract
[en] The plasma centrifuge is a device in which a fully ionized plasma column rotates at high angular velocities by means of crossed electric and magnetic fields. Ion angular rotation frequencies of 6.9 x 104 - 1.2 x 105 rad/s have been measured for a carbon plasma, with an externally applied magnetic field of 0.09T. Isotopic enrichments of up to 390% for 13C have measured at 6cm radius. The steady state behavior of the fully ionized magnetized plasma in the vacuum-arc centrifuge has been theoretically investigated using a multiple species fluid model, which includes electromagnetic, pressure-gradient, centrifugal and collisional forces in cylindrical geometry. (author)
[pt]
A centrifuga de plasma e um dispositivo na qual uma coluna de plasma totalmente ionizada gira a altas velocidades angulares por meio de campos eletricos e magneticos transversais. Foram medidas frequencias de rotacao angular dos ions de 6.9 x 104 - 1.2 x 105 rad/s para um plasma de carbono, com um campo magnetico aplicado externamente de 0.09 T. Foram medidos enriquecimento isotopicos acima de 390% para 13C no raio de 6cm. O comportamento estacionario do plasma magnetizado completamente ionizado em uma centrifuga-arco de vacuo foi investigado teoricamente usando-se um modelo de fluido de especies multiplas, que inclui forcas eletromagneticas, gradientes de pressao, centrifuga e colisional em geometria cilindrica. (M.C.K.)Primary Subject
Source
Sociedade Brasileira de Fisica, Rio de Janeiro, RJ (Brazil); 892 p; 1987; p. 236-247; Energy Independence Conference: Fusion Energy and Plasma Physics; Rio de Janeiro, RJ (Brazil); 17-21 Aug 1987; Available from the Library of Comissao Nacional de Energia Nuclear, RJ, Brazil
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Wisnivesky, D.
Proceedings of the 1. Workshop on Synchrotron Light: Applications and Related Instrumentation1988
Proceedings of the 1. Workshop on Synchrotron Light: Applications and Related Instrumentation1988
AbstractAbstract
[en] This work presents a brief description of the main characteristics of the Brazilian Synchrotron Project and indicate its present state of development. (A.C.A.S.)
[pt]
Este trabalho apresenta uma rapida descricao das principais caracteristicas do projeto do sincrotron brasileiro e indica seu atual estado de desenvolvimento. (A.C.A.S.)Primary Subject
Secondary Subject
Source
Laboratorio Nacional de Luz Sincrotron (LNLS), Campinas, SP (Brazil); 302 p; 1988; p. 259-278; 1. Workshop on Synchrotron Light: Applications and Related Instrumentation; Campinas, SP (Brazil); 25-28 Jul 1988; Available from the Library of the Comissao Nacional de Energia Nuclear, RJ, Brazil
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Barroso, J.J.; Bittencourt, J.A.; Dallaqua, R.S.; Del Bosco, E.; Ferreira, A.; Ferreira, J.L.; Galvao, G.P.; Galvao, R.M.O.; Ludwig, G.O.; Montes, A.
Instituto de Pesquisas Espaciais, Sao Jose dos Campos (Brazil)1987
Instituto de Pesquisas Espaciais, Sao Jose dos Campos (Brazil)1987
AbstractAbstract
[en] Recent results obtained in different experiments at the Institute for Space Research (INPE) are reported. An enrichment of 390% of carbon isotopes has been achieved in the plasma centrifege. The role of ion-acoustic turbulence in the formation of double layers has been experimentaly investigated. The turbulent spectrum has been measured and agrees quite well with the prediction of the modified Kadomtsev's renormalized theory. The characteristics of the gyrotron that is presently being built at INPE and new techniques for gyrotron design are discussed. Thecretical results on the generalized Spitzer-Harm problem, current drive in the start-up phase of Tokamaks, and quasilinear theory of beat-wave current drive are also presented. (author)
[pt]
Apresentam-se os resultados recentes obtidos em diferentes experiencias no Instituto de Pesquisas Espaciais (INPE). Um enriquecimento de 390% de isotopos de carbono foi conseguido na centrifuga de plasma. Invenstigou-se o papel da turbulencia ion-acustica na formacao de camadas duplas. Mediu-se o espectro de turbulencia e considerou-se bom em relacao a previsao feita com a teoria renormalizada modificada de Kadomtsev's. Discutem-se caracteristicas do girotron que esta sendo construido no INPE e novas tecnicas para projetos de girotron. Apresentam-se tambem resultados teoricos do problema generalizado de Spitzer-Harm, direcao de corrente na fase inicial do Tokamak e a teoria quase linear da direcao de corrente. (autor)Primary Subject
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Sep 1987; 9 p
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AbstractAbstract
[en] Several works, covering the 1981 and 1982 years, from the Physical Institut of the Federal University of Rio Grande do Sul - Brazil are reported. They treat both experimental and theoretical aspects of almost the totality of the physical areas, including also the instrumentation part. (L.C.)
[pt]
Reportam-se varios trabalhos, cobrindo os anos de 1981 e 1982, do Instituto de Fisica da Universidade Federal do Rio Grande do Sul - Brasil. Eles tratam tanto dos aspectos experimentais quanto teoricos da quase a totalidade das areas da fisica, englobando tambem a parte de instrumentacao. (L.C.)Primary Subject
Secondary Subject
Source
1983; 205 p
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Cunha, J.L.R. da
Associacao Brasileira de Ensaios Nao Destrutivos, Sao Paulo, SP1988
Associacao Brasileira de Ensaios Nao Destrutivos, Sao Paulo, SP1988
AbstractAbstract
[en] Methods, means and procedures adopted by Petrobras engineering service to survey safety radiation protection of the companies that carry out radiographic services of PETROBRAS are showed. The systematic used in certification of personel, procedures, audits and field survey concerning radiation protection, are described. (C.M.)
[pt]
Sao mostrados os metodos, meios e recursos utilizados pelo servico de Engenharia da Petrobras (SEGEN) na fiscalizacao dos planos de protecao radiologica das empresas contratadas para execucao de radiografia. Sao abordados aspectos de qualificacao de procedimento, pessoal, inspecao interna e fiscalizacao (C.M.)Original Title
Implantacao do plano de protecao radiologica e fiscalizacao
Primary Subject
Source
1988; 11 p; 1. Brazilian Meeting of Supervisors in Industrial Radioprotection; Sao Paulo, SP (Brazil); 11-13 Apr 1988
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AbstractAbstract
[en] This memoirs reports the scientific activities of the Centro Brasileiro de Pesquisas Fisicas (CBPF), a Brazilian Center for Physics Research, during the year 1991 the year 1991
Original Title
Memoria da producao tecnico-cientifica do Centro Brasileiro de Pesquisas Fisicas em 1991; CBPF: a Brazilian center for physical research
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1994; 272 p; ISSN 0102-9045;
; 5 tabs.

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Ferreira, E.G.
Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG (Brazil)1985
Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG (Brazil)1985
AbstractAbstract
[en] This environmental monitoring program of CDTN aim to do a survey that permit to verify if the radioactive wastes release by CDTN agree with basic rudiments of radioprotection, evaluate the environmental impact, verify the adjustment of using proceedings to effluents control, to evaluate the maximum radiation doses that public persons will be able to get yearly. (C.M.)
[pt]
Este Programa de Monitoracao Ambiental do CDTN visa levantar dados que permitam verificar se a liberacao dos rejeitos radioativos pelo CDTN se conforma ao principio basico de radioprotecao, avaliar o impacto ambiental, verificar a adequacao dos procedimentos utilizados para controle dos efluentes, estimar as doses maximas de radiacao que individuos do publico poderao receber anualmente. (C.M.)Original Title
Programa de monitoracao ambiental do CDTN
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Source
Sep 1985; 54 p
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Barroso, J.J.; Castro, P.J. de; Correa, R.A.; Galvao, G.P.
Proceedings of the Energy Independence Conference: Fusion Energy and Plasma Physics1987
Proceedings of the Energy Independence Conference: Fusion Energy and Plasma Physics1987
AbstractAbstract
[en] The conceptual design of a 35GHz gyrotron operating in the TE021 mode, intended for plasma heating experiments, is presented. The electrooptical system is synthesized from the electron beam parameters in the cavity region and the electrodynamical system includes a conventional resonator consisting of truncated cones. The starting and operating characteristics are calculated by integrating the exact equation of electron motion under the action of an RF fiel with fixed spatial distribution. For the moment, the experimental activities, in addition to providing all the infrastructure for the laboratory, are concentrated on the construction of a system of magnetic coils, able to generated a 15kG magnetic induction with a fluctuation of 0.1% over an extension of 13cm, on the manufacture of cavities by using electroforming techniques and on the development of techniques for the construction of electron guns. (author)
[pt]
Apresenta-se o projeto conceitual de um girotron de 35GHz operando no mod TE021 para experienciais de aquecimento de plasma. O sistema eletro-otico e sintetizado dos parametros do feixe de eletrons na regiao da cavidade e o sistema eletrodinamico inclui um ressonador convencional consistindo de cones truncados. As caracteristicas de partida e operacao sao calculadas pela integracao da equacao exata do movimento de eletrons sob a acao de um campo de RF com distribuicao espacial fixa. No momento, as atividades experimentais, para fornecer toda a infraestrutura do laboratorio, estao concentradas na construcao de um sistema de bobinas magneticas, capaz de gerar uma inducao magnetica de 15 Kg com uma fluatuacao de 0.1% sobre uma extensao de 13 cm, na manufatura das cavidades usando-se tecnicas de eletroformacao, e no desenvolvimento de tecnicas para construcao de canhoes de eletrons. (M.C.K.)Primary Subject
Source
Sociedade Brasileira de Fisica, Rio de Janeiro, RJ (Brazil); 892 p; 1987; p. 226-235; Energy Independence Conference: Fusion Energy and Plasma Physics; Rio de Janeiro, RJ (Brazil); 17-21 Aug 1987; Available from the Library of Comissao Nacional de Energia Nuclear, RJ, Brazil
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