Experimental Stark parameters of Cr II spectral lines

22nd International Conference on Spectral Line Shapes

Manrique, J.^1 ; Aguilera, J.A.^2 ; Aragón, C.^2

Facultad de Farmacia, Universidad CEU San Pablo, Urbanización Montepríncipe, Boadilla Del Monte, Madrid

E-28668, Spain^1

Departamento de Física, Universidad Pública de Navarra, Campus de Arrosadía, Pamplona

E-31006, Spain^2

关键词: Chromium concentration;    Glass samples;    Line profiles;    Plasma evolution;    Self absorption;    Shift parameters;    Spectral line;    Stark broadenings;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/548/1/012041/pdf
DOI  :  10.1088/1742-6596/548/1/012041

来源: IOP

【 摘 要 】

Stark broadening and shift parameters of Cr II lines with wavelengths in the range 2000-3500 Å have been measured by laser-induced breakdown spectroscopy. The plasmas were generated from fused glass samples selected with different chromium concentrations to avoid self-absorption which would lead to distorted line profiles. The spectra have been measured at different instants of the plasma evolution from 0.6 to 3.4 gs, at which the temperature and electron density are in the ranges 12000-16300 K and (0.89-8.2) × 1017cm-3, respectively. The electron density has been obtained from the Stark broadening of the Hαline.