Spectral line shape modeling and ion temperature fluctuations in tokamak edge plasmas

Details Spectral line shape modeling and ion temperature fluctuations in tokamak edge plasmas Spectral line shape modeling and ion temperature fluctuations in tokamak edge plasmas

2006-01-23

arxiv.org/abs/physics/0601180v1

Physics

Plasma Physics

6 pages, 2 figures, to be published in Contributions to Plasma Physics

Scientific paper

10.1002/ctpp.200610062

In this work, we use a passive advection model for ion temperature fluctuations, in order to investigate their effects on Doppler Spectral line shapes. The relevance of the model is discussed in the framework of the Braginskii equations, and the subsequent Probability Density Function evaluation relies on results obtained in neutral fluids. The resulting Doppler line profiles are shown to exhibit characteristic exponential tails.

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