Measured Stark widths of several spectral lines of Pb III

Alonso Medina, Aurelia (2011). Measured Stark widths of several spectral lines of Pb III. "Spectrochimica Acta Part B", v. 66 (n. 6); pp. 439-443. ISSN 0584-8547. https://doi.org/10.1016/j.sab.2011.04.008.

Description

Title: Measured Stark widths of several spectral lines of Pb III
Author/s:
  • Alonso Medina, Aurelia
Item Type: Article
Título de Revista/Publicación: Spectrochimica Acta Part B
Date: June 2011
ISSN: 0584-8547
Volume: 66
Subjects:
Faculty: E.U.I.T. Industrial (UPM)
Department: Física Aplicada [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The Stark full widths at half of the maximal line intensity (FWHM, ω) have been measured for 25 spectrallines of PbIII (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 × 1010 W cm− 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 PbIII to obtain the electron number density (7 × 1016 cm− 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.

More information

Item ID: 11057
DC Identifier: http://oa.upm.es/11057/
OAI Identifier: oai:oa.upm.es:11057
DOI: 10.1016/j.sab.2011.04.008
Official URL: http://www.sciencedirect.com/science/article/pii/S0584854711000711
Deposited by: Memoria Investigacion
Deposited on: 13 Jun 2012 08:03
Last Modified: 20 Apr 2016 19:13
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