Estudo espectroscopico de gases nobres medianamente ionizados

AUTOR(ES)
DATA DE PUBLICAÇÃO

1991

RESUMO

The main purpose of this Thesis is the study of the atomic emission spectroscopy, which was performed in order to classify the lines and assign the unknown energy levels of an atom in intermediate and high ionized stage. According this purpose we present the spectral analysis of Kr V, Kr VI, Xe IV and Ar V, whose results showed a number of new lines and energy levels previously unknown. In this Thesis is also presented a theta-pinch (TP-III) that was built by the author with the specific purpose to be used as a spectroscopic light source in the VUV region. The TP-III and the VUV normal incidence spectrograph constitute the first experimental set up running in Brazil for atomic emission spectroscopy. In the appendix we present about 850 lines that was classified from the obtained spectrum. We also describe the capillar discharge tube of Centro de Investigaciones Opticas (La Plata) that also was used by the author, to getting the presented spectra. This Thesis is constituted by a brief theoretical introduction to the physical concepts used to explain the atomic structure and transitions (chapter 2) and by detailed spectral analysis (chapter 4)

ASSUNTO(S)

espectroscopia de emissão espectroscopia atomica

ACESSO AO ARTIGO

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