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.

Descripción

Título: Measured Stark widths of several spectral lines of Pb III
Autor/es:
  • Alonso Medina, Aurelia
Tipo de Documento: Artículo
Título de Revista/Publicación: Spectrochimica Acta Part B
Fecha: Junio 2011
Volumen: 66
Materias:
Escuela: E.U.I.T. Industrial (UPM) [antigua denominación]
Departamento: Física Aplicada [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

Más información

ID de Registro: 11057
Identificador DC: http://oa.upm.es/11057/
Identificador OAI: oai:oa.upm.es:11057
Identificador DOI: 10.1016/j.sab.2011.04.008
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0584854711000711
Depositado por: Memoria Investigacion
Depositado el: 13 Jun 2012 08:03
Ultima Modificación: 20 Abr 2016 19:13
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