Published 2002 | Version v1
Computer medium Metadata-only

Absorption and scattering coefficients estimation in two-dimensional participating media using the generalized maximum entropy and Levenberg-Marquardt methods

Creators

  • 1. Universidad Nacional de Ingenieria, Lima (Peru)
  • 2. Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia. Programa de Engenharia Nuclear
  • 3. Universidade do Estado, Nova Friburgo, RJ (Brazil). Instituto Politecnico. Dept. de Engenharia Mecanica e Energia

Description

The solution of inverse problems in participating media where there is emission, absorption and dispersion of the radiation possesses several applications in engineering and medicine. The objective of this work is to estimative the coefficients of absorption and dispersion in two-dimensional heterogeneous participating media, using in independent form the Generalized Maximum Entropy and Levenberg Marquardt methods. Both methods are based on the solution of the direct problem that is modeled by the Boltzmann equation in cartesian geometry. Some cases testes are presented. (author)

Part of:
Proceedings of the INAC 2002: International nuclear atlantic conference; 13. Brazilian national meeting on reactor physics and thermal hydraulics; 6. Brazilian national meeting on nuclear applications

Additional details

Additional titles

Original title (Spanish)
Estimacion del coeficiente de absorcion y dispersion en medios participantes bidimensionales utilizando el metodo de maxima entropia generalizada y el metodo Levenberg-Marquardt

Publishing Information

Imprint Title
Proceedings of the INAC 2002: International nuclear atlantic conference; 13. Brazilian national meeting on reactor physics and thermal hydraulics; 6. Brazilian national meeting on nuclear applications
Imprint Pagination
[3080 p.]
Journal Page Range
[6 p.]

Conference

Title
International nuclear atlantic conference; 13. Brazilian national meeting on reactor physics and thermal hydraulics; 6. Brazilian national meeting on nuclear applications
Acronym
INAC 2002
Dates
11-16 Aug 2002
Place
Rio de Janeiro, RJ (Brazil)

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
33043571
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORPTION; ATTENUATION; BOLTZMANN EQUATION; DISCRETE ORDINATE METHOD; ENTROPY; RADIATION TRANSPORT; TRANSPORT THEORY; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
CALCULATION METHODS; DIFFERENTIAL EQUATIONS; EQUATIONS; INTEGRO-DIFFERENTIAL EQUATIONS; KINETIC EQUATIONS; PARTIAL DIFFERENTIAL EQUATIONS; PHYSICAL PROPERTIES; SORPTION; THERMODYNAMIC PROPERTIES

Optional Information

Notes
7 refs., 5 figs., 3 tabs., 4 graphs Imprint:Published only in CD-Rom