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Memorias de investigación
Artículos en revistas:
Application of laser-induced plasma spectroscopy to the measurement of transition probabilities of Ca I
Año:2014
Áreas de investigación
  • Fisica am -- fisica atomica y molecular
Datos
Descripción
We present improved experimental transition probabilities for the optical Ca I 4s4p-4s4d and 4s4p-4p2multiplets. The values were determined with an absolute uncertainty of 10%. Transition probabilities have been determined by the branching ratios from the measurement of relative line intensities emitted by laser-induced plasma (LIP). The line intensities were obtained with the target (leadcalcium) placed in argon atmosphere at 6 Torr, recorded at a 2.5 µs delay from the laser pulse, which provides appropriate measurement conditions, and analysed between 350.0 and 550.0 nm. They are measured when the plasma reaches local thermodynamic equilibrium (LTE). The plasma is characterized by electron temperature (T) of 11400 K and an electron number density (Ne) of 1.1 x 1016 cm-3. The influence self-absorption has been estimated for every line, and plasma homogeneity has been checked. The values obtained were compared with previous experimental values in the literature. The method for measurement of transition probabilities using laser-induced plasma as spectroscopic source has been checked.
Internacional
Si
JCR del ISI
No
Título de la revista
Journal Spectroscopy and Dynamics
ISSN
2249-2704
Factor de impacto JCR
Información de impacto
Volumen
4
DOI
Número de revista
15
Desde la página
1
Hasta la página
9
Mes
SIN MES
Ranking
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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: Análisis y Caracterización Óptica de Materiales
  • Departamento: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
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