7 resultados para Atomic and Molecular Physics, and Optics


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A thesis submitted for the degree of Ph. D. in Physics

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A thesis submitted to the University of Innsbruck for the doctor degree in Natural Sciences, Physics and New University of Lisbon for the doctor degree in Physics, Atomic and Molecular Physics

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The most important processes for the creation of S12+ to S14+ ions excited states from the ground configurations of S9+ to S14+ ions in an electron cyclotron resonance ion source, leading to the emission of K X-ray lines, are studied. Theoretical values for inner-shell excitation and ionization cross sections, including double KL and triple KLL ionization, transition probabilities and energies for the deexcitation processes, are calculated in the framework of the multi-configuration Dirac-Fock method. With reasonable assumptions about the electron energy distribution, a theoretical K$\alpha$ X-ray spectrum is obtained, which is compared to recent experimental data.

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Dissertation presented to obtain a Ph.D. Degree in Chemical Physics

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Dissertation to obtain a Master degree in Biotechnology

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Dissertação para obtenção do Grau de Mestre em Engenharia Biomédica