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Dive into the research topics where Alessandro C. Gonçalves is active.

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Featured researches published by Alessandro C. Gonçalves.


Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle, and Balance of Plant; Component Reliability and Materials Issues; Steam Generator Technology Applications and Innovatio | 2012

An Approximation for the Interference Term Applied to the Calculation of the Average Scattering Cross Section Using Fourier Series

Alessandro C. Gonçalves; Aquilino Senra Martinez; Daniel Artur Pinheiro Palma

The calculation of the Doppler broadening function ψ(x,ξ) and of the interference term χ(x,ξ) are important in the generation of nuclear data. In a recent paper, Goncalves and Martinez proposed an analytical approximation for the calculation of both functions based in sine and cosine Fourier transforms. This paper presents new approximations for these functions, ψ(x,ξ) and χ(x,ξ), using expansions in Fourier series, generating expressions that are simple, fast and precise. Numerical tests applied to the calculation of scattering average cross section provided satisfactory accuracy.Copyright


Annals of Nuclear Energy | 2009

Analytical solution of point kinetics equations for linear reactivity variation during the start-up of a nuclear reactor

Daniel A.P. Palma; Aquilino Senra Martinez; Alessandro C. Gonçalves


Annals of Nuclear Energy | 2008

Solution of the Doppler broadening function based on the fourier cosine transform

Alessandro C. Gonçalves; Aquilino Senra Martinez; Fernando Carvalho da Silva


Annals of Nuclear Energy | 2014

On-line method to identify control rod drops in Pressurized Water Reactors

T.J. Souza; Aquilino Senra Martinez; J.A.C.C. Medeiros; Daniel A.P. Palma; Alessandro C. Gonçalves


Annals of Nuclear Energy | 2017

Identification model of an accidental drop of a control rod in PWR reactors using thermocouple readings and radial basis function neural networks

T.J. Souza; J.A.C.C. Medeiros; Alessandro C. Gonçalves


Annals of Nuclear Energy | 2016

A new formulation for the Doppler broadening function relaxing the approximations of Beth–Plackzec

Daniel Artur Pinheiro Palma; Alessandro C. Gonçalves; Aquilino Senra Martinez; Amir Zacarias Mesquita


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2011

An alternative analytical formulation for the Voigt function applied to resonant effects in nuclear processes

Daniel A.P. Palma; Alessandro C. Gonçalves; Aquilino Senra Martinez


Progress in Nuclear Energy | 2017

Support to the identification of anomalies in an external neutron source using Hurst Exponents

Edson Henrice; Daniel A.P. Palma; Alessandro C. Gonçalves; Amir Zacarias Mesquita


Annals of Nuclear Energy | 2017

The Doppler Broadening Function using the Kaniadakis distribution

Guilherme Guedes; Alessandro C. Gonçalves; Daniel A.P. Palma


World Journal of Nuclear Science and Technology | 2012

Reconstruction of the Neutron Flux in a Slab Reactor

Adilson Costa da Silva; Aquilino Senra Martinez; Alessandro C. Gonçalves

Collaboration


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Aquilino Senra Martinez

Federal University of Rio de Janeiro

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Daniel Artur Pinheiro Palma

Federal University of Rio de Janeiro

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J.A.C.C. Medeiros

Federal University of Rio de Janeiro

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T.J. Souza

Federal University of Rio de Janeiro

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Adilson Costa da Silva

Federal University of Rio de Janeiro

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Daniel A.P. Palma

National Nuclear Energy Commission

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Fernando Carvalho da Silva

Federal University of Rio de Janeiro

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Guilherme Guedes

Centro Federal de Educação Tecnológica de Minas Gerais

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