Published 1986 | Version v1
Miscellaneous Metadata-only

The influence of temperature in the characterization of nuclear resonance

Creators

  • 1. Rio de Janeiro Univ. (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia

Description

A detailed analysis carried out to determine the temperature effects on the selection of different types of resonance for Resonance Integral calculations is presented. The type of approximation (WR, IR or NR) to be applied to the slowing down integral of the neutron balance equation depends on the relationship between the average energy lost by the neutron and the practical width. A method to include the temperature dependence in the ratio ΔE/GAMMA sub(p) is proposed. The results allowed us to show that this dependence negligence may lead to large errors in the Resonance Integral calculation. (Author)

Abstract (Portuguese)

Apresenta-se uma analise detalhada do efeito da temperatura no selecionamento dos diferentes tipos de ressonancia para utilizacao no calculo da Integral de Ressonancia. A aproximacao feita na integral de moderacao da equacao de balanco de neutrons depende da relacao entre a energia perdida pelo neutron em uma colisao com o nucleo e a largura pratica. Mostra-se que esta relacao depende da temperatura, e apresentamos um metodo para incluir essa dependencia. Atraves dos resultados verificamos que uma elevada imprecisao no calculo da Integral de Ressonancia pode ser obtida em consequencia a uma identificacao errada do tipo de ressonancia. (Autor)

Additional details

Additional titles

Original title (Portuguese)
A influencia da temperatura na caracterizacao da ressonancia nuclear

Publishing Information

Imprint Title
Proceedings of the 6. National Meeting of Reactor Physics and Thermohydraulic
Imprint Pagination
330 p.
Journal Page Range
p. 39-49.
Report number
INIS-BR--586

Conference

Title
6. National Meeting of Reactor Physics and Thermohydraulic.
Dates
3-5 Dec 1986.
Place
Sao Jose dos Campos, SP (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
18032478
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
DOPPLER BROADENING; LEVEL WIDTHS; NEUTRON SLOWING-DOWN THEORY; RESONANCE INTEGRALS; RESONANCE NEUTRONS; TEMPERATURE DEPENDENCE
Descriptors DEC
BARYONS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INTEGRALS; LINE BROADENING; NEUTRONS; NUCLEONS

Optional Information

Notes
Imprint:Anais do 6. Encontro Nacional de Fisica de Reatores e Termohidraulica.