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AbstractAbstract
[en] The molecular structure and dynamics of calcined bakelite were studied with neutron transmission and scattering cross section measurements. The total cross sections determined were correlated with data obtained with infra-red spectroscopy, elemental analysis and other techniques to get the probable molecular formulae of bakelite. The total cross section determined showed a deviation smaller than 5% from the literature values. The frequency distribution as well as overall experimental results allowed to suggest a structural model like polycyclic hydrocarbons for bakelite calcined at 8000 C. (F.E.). 65 refs, 31 figs, 5 tabs
Original Title
Estudo da estrutura e da dinamica moleculares da baquelite atraves de medidas de secoes de choque para neutrons
Primary Subject
Source
Jun 1990; 113 p; Tese (Ph.D.).
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
Report Number
Country of publication
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INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Neutron reaction cross sections were determined by transmission and scattering measurements, to study the dynamics and molecular structure of calcined bakelites. Total cross sections were determined, with a deviation smaller than 5%, from the literature values, by neutron transmission method and a specially devised approximation. These cross sections were then correlated with data obtained with infra-red spectroscopy, elemental analysis and other techniques to get the probable molecular formulae of bakelite. Double differential scattering cross sections, scattering law values and frequency distributions were determined with 15% error using the neutron inelastic scattering method. The frequency distributions as well as the overall results from all experimental techniques used in this work allowed to suggest a structural model like polycyclic hydrocarbons, for calcined bakelite at 8000 C. (author)
Original Title
Estudos da estrutura e da dinamica moleculares da baquelite atraves de medidas de secoes de choque para neutrons
Primary Subject
Source
May 1992; 54 p
Record Type
Report
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INIS IssueINIS Issue
AbstractAbstract
[en] Published in summary form only
Original Title
Influencia da geometria e componentes do canal de irradicao J-9 do reator Artonauta na relacao da resolucao e intensidade do feixe emergente de neutrons
Primary Subject
Source
Instituto de Engenharia Nuclear (IEN), Rio de Janeiro, RJ (Brazil); 279 p; 1984; p. 223
Record Type
Miscellaneous
Report Number
Country of publication
LanguageLanguage
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Published in summary form only
Original Title
Comparacao de amostra de grafite com padrao frances, por determinacao de secoes de choque para neutrons
Primary Subject
Source
Instituto de Engenharia Nuclear (IEN), Rio de Janeiro, RJ (Brazil); 279 p; 1984; p. 220
Record Type
Miscellaneous
Report Number
Country of publication
LanguageLanguage
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Published in summary form only
Original Title
Determinacao de secoes de choque totais para neutrons de aluminios com consideracoes de impurezas
Primary Subject
Source
Instituto de Engenharia Nuclear (IEN), Rio de Janeiro, RJ (Brazil); 279 p; 1984; p. 220-222
Record Type
Miscellaneous
Literature Type
Numerical Data
Report Number
Country of publication
LanguageLanguage
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Voi, D.L.; Souza, M.I.S.; Furieri, R.C.A.A.
Annual technical report - Instituto de Engenharia Nuclear (IEN) - Dept. of Reactors (DERE) - 19901991
Annual technical report - Instituto de Engenharia Nuclear (IEN) - Dept. of Reactors (DERE) - 19901991
AbstractAbstract
[en] Short communication
Original Title
Desenvolvimento de tecnicas e metodo experimentais para a determinacao dos parametros p, f, η, ε para a subcritica do reator Argonauta
Primary Subject
Source
Instituto de Engenharia Nuclear (IEN), Rio de Janeiro, RJ (Brazil). Dept. de Reatores; 76 p; 1991; p. 23; Available from the Nuclear Information Center of Comissao Nacional de Energia Nuclear, RJ, Brazil
Record Type
Miscellaneous
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, ARGONAUT TYPE REACTORS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, DAYS LIVING RADIOISOTOPES, ENRICHED URANIUM REACTORS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, EXPERIMENTAL REACTORS, HEAVY NUCLEI, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NEPTUNIUM ISOTOPES, NUCLEI, ODD-EVEN NUCLEI, RADIATION FLUX, RADIOISOTOPES, REACTOR COMPONENTS, REACTORS, RESEARCH AND TEST REACTORS, RESEARCH REACTORS, TRAINING REACTORS, URANIUM ISOTOPES, WATER COOLED REACTORS, WATER MODERATED REACTORS, YEARS LIVING RADIOISOTOPES
LanguageLanguage
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Voi, D.L.; Britto Aghina, L.O. de; Bastos, W.S.
Annual technical report - Instituto de Engenharia Nuclear (IEN) - Dept. of Reactors (DERE) - 19901991
Annual technical report - Instituto de Engenharia Nuclear (IEN) - Dept. of Reactors (DERE) - 19901991
AbstractAbstract
[en] Short communication
Original Title
Projeto de uma unidade subcritica experimental para o reator Argonauta
Primary Subject
Source
Instituto de Engenharia Nuclear (IEN), Rio de Janeiro, RJ (Brazil). Dept. de Reatores; 76 p; 1991; p. 22; Available from the Nuclear Information Center of Comissao Nacional de Energia Nuclear, RJ, Brazil
Record Type
Miscellaneous
Country of publication
LanguageLanguage
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Published in summary form only
Original Title
Medidas de secao de choque totais de baquelite a diversas temperaturas de calcinacao
Primary Subject
Source
Instituto de Engenharia Nuclear (IEN), Rio de Janeiro, RJ (Brazil); 279 p; 1984; p. 223
Record Type
Miscellaneous
Report Number
Country of publication
LanguageLanguage
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Determinacao da temperatura de neutrons do reator Argonauta por medida integral de secoes de choque total e medida diferencial de distribuicao de densidade de velocidade de neutrons
Primary Subject
Source
Anon.; Instituto de Engenharia Nuclear, Rio de Janeiro (Brazil); 240 p; 1983; p. 200-201; Published in summary form only.
Record Type
Miscellaneous
Report Number
Country of publication
LanguageLanguage
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Determinacao da temperatura de neutrons no reator Argonauta por medida integral de secao de choque total e medida diferencial da distribuicao de densidade de velocidades de neutrons
Primary Subject
Source
35. Annual Meeting of the Brazilian Society for the Advancement of Science; Belem, PA (Brazil); 6-13 Jul 1983; Published in summary form only.
Record Type
Journal Article
Literature Type
Conference
Journal
Cienc. Cult. (Sao Paulo) Supl; v. 35(7); p. 311
Country of publication
LanguageLanguage
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
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