Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Measured Stark widths of several spectral lines of Pb III
Year:2011
Research Areas
  • Physics - Atomic and molecular physics,
  • Engineering
Information
Abstract
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.
International
Si
JCR
Si
Title
Spectrochimica Acta Part B
ISBN
0584-8547
Impact factor JCR
3,552
Impact info
Volume
66
10.1016/j.sab.2011.04.008
Journal number
6
From page
439
To page
443
Month
ABRIL
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)