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AbstractAbstract
[en] An examination is made of the various parameters acting on the neutron balance: mass, moderation, density, geometry, interactions, absorption and poisoning. The monitoring methods are deduced from this. Using two examples, it is shown how the various parameters act together and in different ways so that it is difficult to predict the results and that it is necessary to have calculation codes well qualified on experience
[fr]
On examine les differents parametres agissant sur le bilan neutronique: masse, moderation, densite, geometrie, interactions, absorption et empoisonnement. On en deduit les modes de controle. On montre par deux exemples que les differents parametres agissent ensemble et de facons differentes de sorte qu'il est difficile de prevoir le resultat et qu'il est necessaire d'avoir des codes de calcul bien qualifies sur l'experienceOriginal Title
Criteres fondamentaux de surete-criticite dans la conception des installations
Primary Subject
Source
CEA Centre d'Etudes Nucleaires de Fontenay-aux-Roses, 92 (France). Inst. de Protection et de Surete Nucleaire; 405 p; nd; p. 21-49; CEA-IPSN; Fontenay-aux-Roses, France; Seminar on safety criticality; Valduc, France; 16 - 18 Oct 1979
Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Kritikalitaetssicherheit bei der Herstellung und Handhabung von Kernbrennstoffen
Primary Subject
Source
Mar 1975; 7 p; Beuth; Berlin, F.R. Germany; DIN--25403 BL. 6; 5 figs.; 2 tabs.
Record Type
Book
Literature Type
Standard
Country of publication
ACTINIDE COMPOUNDS, ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, DISPERSIONS, EVEN-ODD NUCLEI, FISSIONABLE MATERIALS, HEAVY NUCLEI, HYDROGEN COMPOUNDS, ISOTOPES, NITRATES, NITROGEN COMPOUNDS, NUCLEI, OXYGEN COMPOUNDS, PLUTONIUM COMPOUNDS, PLUTONIUM ISOTOPES, RADIOISOTOPES, SIZE, TRANSURANIUM COMPOUNDS, YEARS LIVING RADIOISOTOPES
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AbstractAbstract
No abstract available
Original Title
Kritikalitaetssicherheit bei der Herstellung und Handhabung von Kernbrennstoffen
Primary Subject
Source
Mar 1975; 7 p; Beuth; Berlin, F.R. Germany; DIN--25403 BL. 5; 5 figs.; 3 tabs.
Record Type
Book
Literature Type
Standard
Country of publication
ACTINIDE COMPOUNDS, ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, CHALCOGENIDES, DISPERSIONS, EVEN-ODD NUCLEI, FISSIONABLE MATERIALS, HEAVY NUCLEI, HYDROGEN COMPOUNDS, ISOTOPES, NUCLEI, OXIDES, OXYGEN COMPOUNDS, PLUTONIUM COMPOUNDS, PLUTONIUM ISOTOPES, PLUTONIUM OXIDES, RADIOISOTOPES, SIZE, TRANSURANIUM COMPOUNDS, YEARS LIVING RADIOISOTOPES
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Kindleben, G.
Kerntechnische Gesellschaft e.V., Bonn (Germany, F.R.)1986
Kerntechnische Gesellschaft e.V., Bonn (Germany, F.R.)1986
AbstractAbstract
[en] The primary principle to be observed when handling fissionable material is to prevent uncontrolled criticality, as the reactions, once started, proceed so fast that there remains no chance at all to stop the process. This is why appropriate dimensioning, arrangement and material selection has to be guaranteed at any place of work and with any activity involving the handling of fissionable material, in order to prevent criticality under all circumstances. The contribution in hand reports about current knowledge in science and technology of the criticality-safe designs of installations, and explains the calculations and methods applied. (orig./HP)
[de]
Oberstes Gebot beim Umgang mit spaltbarem Material ist es, jede unkontrollierte Kritikalitaet zu verhindern, da diese bei Vorliegen der Voraussetzungen so schnell ablaeuft, dass keine Massnahmen zu ihrer Abwendung mehr moeglich sind. Ueberall dort, wo spaltbares Material be- oder verarbeitet wird, muss deshalb durch Dimensionierung, Anordnung und Materialwahl gewaehrleistet sein, dass keine Kritikalitaet entstehen kann. Die vorliegende Arbeit beschreibt den gegenwaertigen Stand von Wissenschaft und Technik zur kritikalitaetssicheren Auslegung von Anlagen und erlaeutert die hierzu notwendigen Berechnungsmethoden. (orig./HP)Original Title
Kritikalitaetssicherheit
Primary Subject
Secondary Subject
Source
KTG-Seminar; v. 3; 1986; vp; Verl. TUEV Rheinland; Koeln (Germany, F.R.); ISBN 3-88585-245-4; 
Record Type
Book
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The indicated numerical values and curves refer to an isolated system of uranylnitrate (UO2(NO3)2) (100% uranium 235) homogenously distributed in light water (H2O) with maximum reflection by light water. Maximum reflection is obtained by an at least 30 cm thick water layer with a density of 1 g/cm3. (orig.)
[de]
Die angegebenen Zahlenwerte und Kurven gelten fuer ein isoliertes System aus homogen in Leichtwasser (H2O) verteiltem Uranylnitrat (UO2(NO3)2) (100% Uran 235) bei maximaler Reflexion durch Leichtwasser. Maximale Reflexion wird erreicht durch eine mindestens 30 cm dicke Wasserschicht der Dichte 1 g/cm3. (orig.)Original Title
Kritikalitaetssicherung bei der Verarbeitung und Handhabung von Kernbrennstoffen
Primary Subject
Source
Oct 1981; 8 p; Beuth; Berlin, Germany, F.R; DIN--25403(PT.8)
Record Type
Book
Literature Type
Standard; Numerical Data
Country of publication
ACTINIDE COMPOUNDS, ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, DATA, EVEN-ODD NUCLEI, HEAVY NUCLEI, HYDROGEN COMPOUNDS, INFORMATION, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NITRATES, NITROGEN COMPOUNDS, NUCLEI, NUMERICAL DATA, OXYGEN COMPOUNDS, RADIOISOTOPES, SIZE, URANIUM COMPOUNDS, URANIUM ISOTOPES, URANYL COMPOUNDS, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
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AbstractAbstract
[en] In the form of numerical data and graphical representations the smallest critical values for a system of uranium 235 dioxide homogeneously distributed in light water at maximum reflection through water are given. (RW)
[de]
In Form von Zahlenwerten und Kurven werden fuer ein System aus homogen in Leichtwasser verteiltem Uran 235-Dioxyd bei maximaler Reflexion durch Wasser kleinste kritische Werte angegeben. (RW)Original Title
Kritikalitaetssicherheit bei der Herstellung und Handhabung von Kernbrennstoffen
Primary Subject
Source
Jan 1977; 6 p; Beuth; Berlin, Germany, F.R; DIN--25403(PT.4); 5 figs.; 2 tabs.; 1 ref.
Record Type
Book
Literature Type
Standard
Country of publication
ACTINIDE COMPOUNDS, ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, CHALCOGENIDES, DISPERSIONS, EVEN-ODD NUCLEI, FISSIONABLE MATERIALS, HEAVY NUCLEI, HYDROGEN COMPOUNDS, INFORMATION, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEI, OXIDES, OXYGEN COMPOUNDS, RADIOISOTOPES, SIZE, URANIUM COMPOUNDS, URANIUM ISOTOPES, URANIUM OXIDES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Kritikalitaetssicherheit bei der Herstellung und Handhabung von Kernbrennstoffen
Primary Subject
Source
Mar 1975; 6 p; Beuth; Berlin, F.R. Germany; DIN--25403 BL. 4; 5 figs.; 2 tabs.
Record Type
Book
Literature Type
Standard
Country of publication
ACTINIDE COMPOUNDS, ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, CHALCOGENIDES, DISPERSIONS, EVEN-ODD NUCLEI, FISSIONABLE MATERIALS, HEAVY NUCLEI, HYDROGEN COMPOUNDS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEI, OXIDES, OXYGEN COMPOUNDS, RADIOISOTOPES, SIZE, URANIUM COMPOUNDS, URANIUM ISOTOPES, URANIUM OXIDES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] In reviewing the literature published between 1969 and 1979 about superconducting materials the monograph stresses the connection between superconducting parameters on the one hand and the crystal structure, position of the superconductor-forming elements in the periodic table, chemical composition and phases, grain structure as well as preparation and treatment conditions on the other hand. The subject is covered under the following headings: fundamentals of superconductivity and superconducting materials, preparation of superconducting materials, preparation of superconducting layers by physical and electrochemical methods, possibilities of increasing the critical parameters, and applications of superconducting materials. 179 figures, 81 tables, and 958 references are included
Original Title
Supraleitende Werkstoffe
Primary Subject
Secondary Subject
Source
1982; 356 p; VEB Deutscher Verlag fuer Grundstoffindustrie; Leipzig
Record Type
Book
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] In the form of numerical data and graphical representations the smallest critical values for plutonium 239-dioxide light-water-mixtures in dependence of the moderator-fuel ratio are given. (RW)
[de]
In Form von Zahlenwerten und Kurven werden kleinste kritische Werte fuer Plutonium 239 Dioxyd-Leichtwassermischungen in Abhaengigkeit vom Moderatorspaltstoff angegeben. (RW)Original Title
Kritikalitaetssicherheit bei der Herstellung und Handhabung von Kernbrennstoffen
Primary Subject
Source
Jan 1977; 7 p; Beuth; Berlin, Germany, F.R; DIN--25403(PT.5); 5 figs.; 3 tabs.; 1 ref.
Record Type
Book
Literature Type
Standard
Country of publication
ACTINIDE COMPOUNDS, ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, CHALCOGENIDES, DISPERSIONS, EVEN-ODD NUCLEI, FISSIONABLE MATERIALS, HEAVY NUCLEI, HYDROGEN COMPOUNDS, INFORMATION, ISOTOPES, NUCLEI, OXIDES, OXYGEN COMPOUNDS, PLUTONIUM COMPOUNDS, PLUTONIUM ISOTOPES, PLUTONIUM OXIDES, RADIOISOTOPES, SIZE, TRANSURANIUM COMPOUNDS, YEARS LIVING RADIOISOTOPES
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AbstractAbstract
[en] In the form of numerical data and graphical representations, the smallest critical values for a system of plutionium 239 nitrate homogeneously distributed in light water at maximum reflection through light water are given. (RW)
[de]
In Form von Zahlenwerten und Diagrammen werden kleinste kritische Werte fuer ein System aus homogen in Leichtwasser verteiltem Plutonium 239 Nitrat bei maximaler Reflexion durch Leichtwasser angegeben. (RW)Original Title
Kritikalitaetssicherheit bei der Herstellung und Handhabung von Kernbrennstoffen
Primary Subject
Source
Jan 1977; 7 p; Beuth; Berlin, Germany, F.R; DIN--25403(PT.6); 5 figs.; 2 tabs.; 1 ref.
Record Type
Book
Literature Type
Standard
Country of publication
ACTINIDE COMPOUNDS, ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, DISPERSIONS, EVEN-ODD NUCLEI, FISSIONABLE MATERIALS, HEAVY NUCLEI, HYDROGEN COMPOUNDS, INFORMATION, ISOTOPES, NITRATES, NITROGEN COMPOUNDS, NUCLEI, OXYGEN COMPOUNDS, PLUTONIUM COMPOUNDS, PLUTONIUM ISOTOPES, RADIOISOTOPES, SIZE, TRANSURANIUM COMPOUNDS, YEARS LIVING RADIOISOTOPES
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