Now showing items 1-5 of 5

    • CSigma graphs: a new approach for plasma characterization in laser-induced breakdown spectroscopy 

      Aragón Garbizu, Carlos Upna; Aguilera Andoaga, José Antonio Upna (Elsevier, 2014)   Artículo / Artikulua  OpenAccess
      A generalization of curves of growth called CSigma (Cσ) graphs, which allows including several lines of various elements in the same ionization state at different concentrations, is proposed for laser-induced breakdown ...
    • Direct analysis of aluminum alloys by CSigma laser-induced breakdown spectroscopy 

      Aragón Garbizu, Carlos Upna; Aguilera Andoaga, José Antonio Upna (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      We report the application of CSigma laser-induced breakdown spectroscopy (Cσ-LIBS) to quantitative analysis of aluminum alloys without sample preparation. Cσ-LIBS simplifies strongly the conventional calibration procedure ...
    • Experimental Stark widths and shifts of Cr II spectral lines 

      Aguilera Andoaga, José Antonio Upna; Aragón Garbizu, Carlos Upna; Manrique Rosel, Javier (Oxford University Press, 2013)   Artículo / Artikulua  OpenAccess
      Stark widths and shifts of Cr II lines with wavelengths in the range 2000–3500 Å have been determined by laser-induced breakdown spectroscopy. The spectra have been measured at different instants of the plasma ...
    • Experimental Stark widths and shifts of MnII spectral lines 

      Manrique Rosel, Javier; Aragón Garbizu, Carlos Upna; Aguilera Andoaga, José Antonio Upna (Oxford University Press, 2019)   Artículo / Artikulua  OpenAccess
      Stark widths and shifts of MnII lines with wavelengths in the range 2300-3500 Å have been measured by laser-induced breakdown spectroscopy. The use of fused glass samples with varying Mn concentrations has allowed minimization ...
    • Method for measurement of transition probabilities by laser-induced breakdown spectroscopy based on CSigma graphs. Application to Ca II spectral lines 

      Aguilera Andoaga, José Antonio Upna; Aragón Garbizu, Carlos Upna; Manrique Rosel, Javier (Elsevier, 2015)   Artículo / Artikulua  OpenAccess
      We propose a method for determination of transition probabilities by laser-induced breakdown spectroscopy that avoids the error due to self-absorption. The method relies on CSigma graphs, a generalization of curves of ...