Reactor Neutrinos
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Simulação da geometria e do desempenho do detector de antineutrinos do Projeto Angra / Simulation of the design and performance of the detector antineutrinos Angra Project
In this work is presented a comparative study between some geometries for the Neutrinos Angra Project detector. This Project was born from a colaboration that is dedicated to the construction of a compact antineutrinos detector for monitoring, in real time, the thermal power of Angra II nuclear reactor. Through the antineutrinos ux is possible to get informa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/11/2009
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2. Study of the Neutrinos Angra Project detector s energy resolution for measurement of the nuclear fuel composition / Estudo da resolução em energia do detector de neutrinos do Projeto ANGRA para mediadas de composição do combustivel nuclear
Nuclear reactors are an abundant source of anti-neutrinos, whose spectrum is determined by the hera decay of radioactive isotopes in the nuclear fuel. As the fuel is consumed, their isotopic composition is altered, with direct consequences on the spectrum of anti-neutrlnos. Thus, detection of anti-neutrinos can be applied in monitoring the isotopic compositi
Publicado em: 2009
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3. Estudo da sensibilidade do detector de neutrinos do Projeto ANGRA aos efeitos da queima do combustivel nuclear / Study of the sensitivity of the neutrino s detector of the ANGRA Project to the effects of the nuclear fuel burn-up
Reatores nucleares constituem uma profusa fonte de antineutrinos, cujo espectro é determinado pelos decaimentos beta dos isótopos radioativos presentes no combustível nuclear. À medida que o combustível é consumido, sua composição isotópica é alterada, com reflexos diretos no espectro de antineutrinos. Desta forma, investigamos neste trabalho a via
Publicado em: 2009
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4. New limits for the violation of the equivalence prinriple on solar neutrinos / Novos limites para violação do principio da equivalencia em neutrinos solares
In this work, we studied the model for the violation of the equivalence principle (VEP) on solar and reactor neutrinos. This model was already considered as a promising solution to the solar neutrino problem (SNP), but was abandoned because it wasn?t able to explain all the data with a single set of physical parameters. The mass- avor mixing model, together
Publicado em: 2008
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5. Constraints on the environment depence of the neutrino mass from solar and reactor neutrino data
We investigate what can be the role of Mass Varying Neutrinos in several different neutrino oscillation experiments, in particular focusing on the relation between KamLAND data and solar neutrino experiment results. Assuming that the adiabaticity of solar neutrinos evolution in LMA-MSW scenario is not broken by the inclusion of this new mechanism, we can est
Brazilian Journal of Physics. Publicado em: 2007-07
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6. Oscilação de neutrinos no formalismo de pacotes de onda / Neutrino oscillation in the wave packet approach
Generally, we study neutrino oscillation phenomenon using the plane wave formalism, which successfully treats the solar neutrino case, the reactor and accelerator cases. However, a more complete description of neutrino oscillation must consider a wave packet approach. This work analyses both formalisms: the plane wave and the wave packet in vacuum and matter
Publicado em: 2006
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7. Neutrinos at 1%: a reactor based measurement of theta13
Past studies of neutrinos and the recent results on neutrino mixing have opened up many new possibilities as well as the understanding that neutrino mixing is very different from the better known quark mixing. The last remaining unmeasured component of the neutrino mixing matrix (Ue3) also provides a window to understanding neutrino matter effects, the mass
Brazilian Journal of Physics. Publicado em: 2004-12
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8. Descoerencia na propagação de neutrinos
In this work we discuss the Neutrino temporal evolution adding the decoherence phenomenon to flavor oscillation. We describe very carefully how the phenomenological decoherence should be added to the evolution and what are the consequences and possibilities that this choice bring to us. Imposing decoherence we found three new dynamics to Neutrino system that
Publicado em: 2003