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Doppler spectral line shapes in low frequency turbulent plasmas
Author(s) -
Marandet Y.,
Capes H.,
GodbertMouret L.,
Koubiti M.,
Stamm R.
Publication year - 2004
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200410043
Subject(s) - turbulence , doppler effect , physics , line (geometry) , spectral line , plasma , computational physics , doppler broadening , wave turbulence , spectral density , optics , atomic physics , mechanics , quantum mechanics , mathematics , statistics , geometry
In this paper we investigate the influence of low frequency, i.e. drift wave like turbulence on the spectral line shapes in magnetized plasmas. The measured spectrum, which is obtained through both spatial and time averaging processes, is shown to contain information on turbulence. Using a statistical description of the turbulent fluctuations, we investigate the effects of density, fluid velocity and temperature fluctuations on the Doppler profile of a spectral line. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)