Bibcode
Santiago, I.; Pineda, M.; Calzada, M. D.; García, M.
Bibliographical reference
Memorie della Società Astronomica Italiana Supplement, v.7, p.230 (2005)
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2005
Citations
0
Refereed citations
0
Description
Atomic emission spectroscopy is a passive spectroscopy technique widely
used in the diagnosis of plasmas which does not alter the internal
kinectic of the discharge during the measurement process, under high
pressure conditions. Line profiles are adequately fitted by a Voigt
function. One of the parameter which characterizes these spectral lines
is the emph{damping} or emph{Voigt-a parameter}. In this work a simple
method for obtaining experimentally the value of the emph{a parameter}
of the spectral lines emitted by an argon plasma generated at
atmospheric pressure is presented. The value indicates the proportion
existing between the Lorentz and Doppler components of the total profile
of the line.