CFA FCT/UNL is one of the two scientific groups of Centro de Física Atómica (CFA). Most of its members belong to Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa (FCTUNL).
Production and decay of sulfur excited species in an electron-cyclotron-resonance ion-source plasma
| Title | Production and decay of sulfur excited species in an electron-cyclotron-resonance ion-source plasma |
| Publication Type | Journal Article |
| Year of Publication | 2009 |
| Authors | Martins, M. C., Marques J. P., Costa A. M., Santos J. P., Parente F., Schlesser S., Bigot Le E. - O., and Indelicato P. |
| Journal | Physical Review A (Atomic, Molecular, and Optical Physics) |
| Volume | 80 |
| Pagination | 032501 |
| Keywords | Dirac-Fock calculations, excited states, ground states, inner-shell ionisation, plasma sources, plasma X-ray sources, positive ions, radiative lifetimes, sulphur, X-ray spectra |
| Abstract | 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 ionizations, transition probabilities and energies for the de-excitation processes, are calculated in the framework of the multiconfiguration Dirac-Fock method. With reasonable assumptions about the electron energy distribution, a theoretical Kalpha x-ray spectrum is obtained, which is compared to recent experimental data. |
| URL | http://link.aps.org/abstract/PRA/v80/e032501 |
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