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ETDEWEB   /       /    Resonance integral analytical calculation considering shadowing effect. Calculo analitico da integral de ressonancia considerando o efeito de sombreamento

Resonance integral analytical calculation considering shadowing effect. Calculo analitico da integral de ressonancia considerando o efeito de sombreamento

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Abstract

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 ({xi}, {beta}) function and theirs partial derivatives in relation to {beta}. The dependence of the Resonance Integral in the J ({xi}, {beta}) 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).
Authors:
Monteiro, M A.M.; [1]  Martinez, A S [2] 
  1. NUCLEN, Rio de Janeiro, RJ (Brazil)
  2. Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia
Publication Date:
Jan 01, 1990
Product Type:
Miscellaneous
Report Number:
CONF-9107239-
Reference Number:
AIX-23-087039; EDB-92-176428
Resource Relation:
Conference: 3. General congress on nuclear energy, Rio de Janeiro (Brazil), 22 Jul 1991; Related Information: In: Proceedings of the 3. General Congress on Nuclear Energy. v. 1. Anais do 3. Congresso Geral de Energia Nuclear. v. 1, 166 p
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; RESONANCE INTEGRALS; SHADOW EFFECT; DANCOFF CORRECTION; DOPPLER BROADENING; FUEL RODS; NEUTRON FLUX; RESONANCE ESCAPE PROBABILITY; URANIUM 238; URANIUM DIOXIDE; WATER; ACTINIDE COMPOUNDS; ACTINIDE ISOTOPES; 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 RADIOISOTOPES; URANIUM COMPOUNDS; URANIUM ISOTOPES; URANIUM OXIDES; YEARS LIVING RADIOISOTOPES; 220100* - Nuclear Reactor Technology- Theory & Calculation
OSTI ID:
6965800
Research Organizations:
Associacao Brasileira de Energia Nuclear, Rio de Janeiro, RJ (Brazil); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brasilia, DF (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Availability:
Available from the Library of Comissao Nacional de Energia Nuclear, RJ, Brazil
Submitting Site:
INIS
Size:
Pages: 10-19; (166 p)
Announcement Date:
May 13, 2001

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Citation Formats

Monteiro, M A.M., and Martinez, A S. Resonance integral analytical calculation considering shadowing effect. Calculo analitico da integral de ressonancia considerando o efeito de sombreamento. Brazil: N. p., 1990. Web.
Monteiro, M A.M., & Martinez, A S. Resonance integral analytical calculation considering shadowing effect. Calculo analitico da integral de ressonancia considerando o efeito de sombreamento. Brazil.
Monteiro, M A.M., and Martinez, A S. 1990. "Resonance integral analytical calculation considering shadowing effect. Calculo analitico da integral de ressonancia considerando o efeito de sombreamento." Brazil.
@misc{etde_6965800,
title = {Resonance integral analytical calculation considering shadowing effect. Calculo analitico da integral de ressonancia considerando o efeito de sombreamento}
 author = {Monteiro, M A.M., and Martinez, A S}
 abstractNote = {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 ({xi}, {beta}) function and theirs partial derivatives in relation to {beta}. The dependence of the Resonance Integral in the J ({xi}, {beta}) 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).}
 place = {Brazil}
 year = {1990}
 month = {Jan}
 }