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Memorias de investigación
Artículos en revistas:
Measured Stark widths of several spectral lines of Pb III
Año:2011
Áreas de investigación
  • Fisica am -- fisica atomica y molecular,
  • Ingenierías
Datos
Descripción
The Stark full widths at half of themaximal line intensity (FWHM,?) have beenmeasured for 25 spectral lines of Pb III (15 measured for the first time) arising from the 5d106s8s, 5d106s7p, 5d106s5f and 5d106s5g electronic configurations, in a lead plasma produced by ablation with a Nd:YAG laser. The optical emission spectroscopy from a laser-induced plasma generated by a 10 640 Å radiation, with an irradiance of 2×1010Wcm?2 on a lead target (99.99% purity) in an atmosphere of argon was analysed in the wavelength interval between 2000 and 7000 Å. The broadening parameters were obtained with the target placed in argon atmosphere at 6 Torr and 400 ns after each laser light pulse, which provides appropriate measurement conditions. A Boltzmann plot was used to obtain the plasma temperature (21,400 K) and published values of the Starkwidths in Pb I, Pb II and Pb III to obtain the electron number density (7×1016cm?3); with these values, the plasma composition was determined by means of the Saha equation. Local Thermodynamic Equilibrium (LTE) conditions and plasma homogeneity has been checked. Special attention was dedicated to the possible self-absorption of the different transitions. Comparison of the new results with recent available data is also presented.
Internacional
Si
JCR del ISI
Si
Título de la revista
Spectrochimica Acta Part B
ISSN
0584-8547
Factor de impacto JCR
3,552
Información de impacto
Volumen
66
DOI
10.1016/j.sab.2011.04.008
Número de revista
6
Desde la página
439
Hasta la página
443
Mes
ABRIL
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Participantes
  • Autor: Aurelia Alonso Medina (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Caracterización óptica de materiales
  • Departamento: Física Aplicada
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