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dc.creatorPetrović, Ivan M.
dc.creatorMarleau, Guy
dc.creatorBenoist, Pierre
dc.date.accessioned2020-04-30T12:43:14Z
dc.date.available2020-04-30T12:43:14Z
dc.date.issued1995
dc.identifier.urihttp://inis.iaea.org/search/search.aspx?orig_q=RN:28045651
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/8549
dc.description.abstractThis model is based on the heterogeneous B1 theory and accounts for heterogeneous effects on the neutron streaming To the price of some approximations, it yields an iterative scheme to simultaneously compute the multi-group scalar fluxes and the directional currents in a heterogeneous geometry Although a similar simplified model called TIBERE, has already been proposed for specularly-reflected neutrons on the assembly (or cell) boundary there was a need to develop this new model, called TIBERE-2, for isotropically-reflected neutrons on the boundary This new model requires the classical and directional escape and transmission probabilities in addition to the classical and directional first flight collision probabilities calculated for an open assembly Consequently, considering the specific geometry of the CANDU reactor lattice, calculations with the TIBERE-2 model are as appropriate but less time consuming than those with the TIBERE model Moreover, this new model circumvents the divergence, leading to infinite leakage coefficients, appearing in the TIBERE model in the case when a PWR assembly is completely voided The TIBERE-2 model has been introduced, for 2D geometry, in the multigroup transport code DRAGON, in order to evaluate space-dependent leakage coefficientsen
dc.language.isoen
dc.publisherAmerican Nuclear Society
dc.sourceProceedings of the international conference on mathematics and computations, reactor physics, and environmental analyses. Vol. 1 and 2
dc.titleA simplified heterogeneous Β1 model with isotropically-reflected neutrons on assembly boundaryen
dc.typeconferenceObject
dcterms.abstractМарлеау, Гуy; Петровић, Иван М.; Беноист, Пиерре;
dc.citation.spage792
dc.citation.epage801
dc.description.otherInternational conference on mathematics and computations, reactor physics, and environmental analyses; Portland, OR (United States); 30 Apr - 4 May 1995; American Nuclear Society, Inc., 555 N. Kensington Ave., La Grange Park, IL 60525 (United States)en


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