Published March 1962
| Version v1
Book
Multi-group calculations for fast reactors
Description
The paper deals with various causes of error in calculations. The first part sets out the mathematical approximations (diffusion approximation, Sn method, etc.), the numerical resolution methods (effect of integration step), the models used, and the implications of these various factors in the determination of the principal characteristics of a fast neutron reactor. The second part studies the effect on reactivity of variations of element cross-sections, using various fuels, in a reactor of rather hard spectrum. (author)
Abstract (French)
Les auteurs traitent des differentes causes d'erreur dans les calculs de piles rapides. Dans la premiere partie sont exposees les approximations mathematiques (approximation de la diffusion, methode Sn, etc.), les methodes de resolution numerique (influence du pas d'integration), les modeles utilises, et l'incidence de ces differents facteurs sur la determination des principales caracteristiques d'un reacteur a neutrons rapides. La deuxieme partie consiste en l'etude de l'effet sur la reactivite des variations des sections efficaces des elements, dans le cas d'un reacteur a spectre assez dur, avec divers combustibles. (author)Abstract (Spanish)
Los autores estudian las diferentes causas de error en el calculo de los reactores rapidos. En la primera parte de la memoria, exponen las aproximaciones matematicas (aproximacion de la difusion, metodo Sn, etc.), los procedimientos de resolucion numerica (influencia de la etapa de integracion), los modelos utilizados y el efecto de estos factores en la determinacion de las principales caracteristicas de un reactor de neutrones rapidos. En la segunda parte de la memoria, examinan el efecto de lasvariacion es en las secciones eficaces de los elementos sobre la reactividad, en el caso de un reactor de espectro bastante duro, alimentado con diferentes combustibles. (author)Abstract (Russian)
V nastoyashchem doklade razbirayutsya razlichnye prichiny, vyzyvayushchie pogreshnosti v raschete reaktorov na bystrykh nejtronakh. V pervoj chasti dayutsya matematicheskie priblizheniya (diffuzionnoe priblizhenie, metod Sn, ... ), metody chislovogo resheniya (vliyanie chisla grupp), ispol'zovavshies ya modeli i vliyanie ehtikh razlichnykh faktorov na opredelenie glavnykh kharakteristik reaktora na bystrykh nejtronakh. Vo vtoroj chasti izuchaetsya vliyanie na reaktivnost' kolebaniya ehffektivnogo secheniya ehlementov s razlichnym toplivom v sluchae reaktora s dovol'no zhestkim spektrom. (author)Additional details
Additional titles
- Original title (French)
- Calculs multigroupes des piles rapides; Mnogogruppovoj raschet reaktorov na bystrykh nejtronakh; Calculos de grupos multiples relativos a los reactores rapidos
Publishing Information
- Publisher
- Globus, Druck- und Verlagsanstalt, Vienna
- Imprint Place
- Vienna (International Atomic Energy Agency (IAEA))
- Imprint Title
- Physics of Fast and Intermediate Reactors. Vol. II. Proceedings of the Seminar on the Physics of Fast and Intermediate Reactors. Vol. II.
- Imprint Pagination
- 418 p.
- Series
- Proceedings Series
- Journal Page Range
- p. 27-53
- ISSN
- 0074-1884
Conference
- Title
- Seminar on Physics of Fast and Intermediate Reactors
- Dates
- 3-11 Aug 1961
- Place
- Vienna (Austria)
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 44035055
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CROSS SECTIONS; ERRORS; FAST REACTORS; MULTIGROUP THEORY; NEUTRON DIFFUSION EQUATION; NEUTRON SPECTRA; REACTIVITY; SPHERICAL HARMONICS METHOD
- Descriptors DEC
- APPROXIMATIONS; CALCULATION METHODS; DIFFERENTIAL EQUATIONS; DIFFUSION EQUATIONS; EPITHERMAL REACTORS; EQUATIONS; NEUTRON TRANSPORT THEORY; PARTIAL DIFFERENTIAL EQUATIONS; REACTORS; SPECTRA; TRANSPORT THEORY
Optional Information
- Notes
- 18 refs, 5 figs, 12 tabs Imprint:In three volumes
- Secondary number(s)
- STI/PUB--49(V.2); IAEA-SM--18