Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Experimental determination of the Stark widths of Pb I spectral lines in a laser-induced plasma
Año:2008
Áreas de investigación
  • Óptica, electromagnetismo,
  • Astronomía,
  • Astrofísica,
  • Fisica am -- fisica atomica y molecular
Datos
Descripción
Stark widths of 34 spectral lines of Pb I have been measured in a Laser-Induced-Plasma (LIP). The optical emission spectroscopy from a LIP generated by a 10640 Å radiation, with an irradiance of 1.4×1010 W cm−2 on a Sn–Pb target in an atmosphere of argon was analyzed between 1900 and 7000 Å. The Local Thermodynamic Equilibrium (LTE) conditions and plasma homogeneity have been checked. The 34 spectral lines measured in this paper correspond to the transitions n(n=7, 8)s→6p2, n(n=6, 7)d→6p2. The population levels distribution and the corresponding temperatures were obtained using Boltzmann plots. The plasma electron densities were determined using well-known Stark broadening parameters of spectral lines. Special attention was dedicated to the possible self-absorption of the different transitions. Stark broadening parameters of the spectral lines were measured at 2.5 μs after each laser light pulse, where the electron temperature was close to 11200 K and the electron density to 1016 cm−3. The experimental results obtainedhave been compared with the experimental values given by other authors.
Internacional
Si
JCR del ISI
Si
Título de la revista
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
ISSN
0584-8547
Factor de impacto JCR
2,957
Información de impacto
Volumen
63
DOI
10.1016/j.sab.2008.03.002
Número de revista
5
Desde la página
598
Hasta la página
602
Mes
MAYO
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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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