Published 1990 | Version v1
Miscellaneous Metadata-only

Resonance integral analytical calculation considering shadowing effect

Creators

  • 1. NUCLEN, Rio de Janeiro, RJ (Brazil)
  • 2. Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia

Description

It is presented a method for the Resonance Integral Calculation in the fuel and moderator regions, including the shadowing effect. This effect appears due to the presence of several fuel rods in a infinite moderator region. The method is based on the approximations to the J (ξ, β) function and theirs partial derivatives in relation to β. The dependence of the Resonance Integral in the J (ξ, β) comes from the rational approximation to the neutron escape probability. The final results were obtained in a very simple and fast way, and they show the good accuracy of the method. (author)

Additional details

Additional titles

Original title (Portuguese)
Calculo analitico da integral de ressonancia considerando o efeito de sombreamento

Publishing Information

Imprint Title
Proceedings of the 3. General Congress on Nuclear Energy. v. 1
Imprint Pagination
166 p.
Journal Page Range
p. 10-19.

Conference

Title
3. General Congress on Nuclear Energy.
Dates
22-27 Jul 1991.
Place
Rio de Janeiro, RJ (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
23087039
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
DANCOFF CORRECTION; DOPPLER BROADENING; FUEL RODS; NEUTRON FLUX; RESONANCE ESCAPE PROBABILITY; RESONANCE INTEGRALS; SHADOW EFFECT; URANIUM DIOXIDE; URANIUM 238; WATER
Descriptors DEC
ACTINIDE COMPOUNDS; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; CHALCOGENIDES; EVEN-EVEN NUCLEI; FUEL ELEMENTS; HEAVY NUCLEI; HYDROGEN COMPOUNDS; INTEGRALS; ISOTOPES; LINE BROADENING; NUCLEI; OXIDES; OXYGEN COMPOUNDS; RADIATION FLUX; RADIOISOTOPES; REACTOR COMPONENTS; SPONTANEOUS FISSION RADIOISOTO; URANIUM COMPOUNDS; URANIUM ISOTOPES; URANIUM OXIDES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
Imprint:Anais do 3. Congresso Geral de Energia Nuclear. v. 1.