Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Experimental determination of the Stark widths of Pb I spectral lines in a laser-induced plasma
Year:2008
Research Areas
  • Optics, electromagnetism,
  • Astronomy,
  • Astrophysics,
  • Physics - Atomic and molecular physics
Information
Abstract
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.
International
Si
JCR
Si
Title
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
ISBN
0584-8547
Impact factor JCR
2,957
Impact info
Volume
63
10.1016/j.sab.2008.03.002
Journal number
5
From page
598
To page
602
Month
MAYO
Ranking
Participants
  • Autor: Aurelia Alonso Medina (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Caracterización óptica de materiales
  • Departamento: Física Aplicada
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)