If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Experimental Method for Determining the Damping Parameter of Spectral Lines Emitted by a Microwave Plasma at Atmospheric Pressure

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

In this work, a simple method for experimentally obtaining the value of the damping parameter or a-parameter of the spectral lines emitted by an argon plasma generated at atmospheric pressure is presented. The value of this coefficient indicates the proportion existing between the Lorentzian and Doppler components of the total line profile, which can be approximated to a Voigt function for our experimental conditions. The a-parameter values found were within the value interval recorded in the literature. The results obtained showed that the damping coefficient of the lines next to the fundamental level remains practically constant along the plasma column, whereas for the spectral lines involving high-lying levels, the a-parameter is sensitive to the changes in the electron density in the plasma. In this work it is also proved that the self-absorption phenomenon induces errors in the calculation of a, due to an increase in the broadening of the line profile produced by this phenomenon.

Keywords: AES; ATMOSPHERIC PRESSURE; ATOMIC EMISSION SPECTROSCOPY; DAMPING PARAMETER; MICROWAVE PLASMAS; SPECTRAL LINE BROADENING; VOIGT FUNCTION

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370205775142584

Affiliations: Grupo de Espectroscopía de Plasmas, Edifico A. Einstein (C-2), Campus de Rabanales, Universidad de Córdoba, 14071 Córdoba, Spain

Publication date: December 1, 2005

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more