Experimental study of the electromagnetic component of drift-wave turbulence

K. Rahbarnia, E. Holzhauer, N. Mahdizadeh, M. Ramisch, U. Stroth

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The magnetic turbulent fluctuation spectrum is investigated in the core of a toroidally confined plasma with parameters similar to those in the fusion edge plasma. The measured spectra show fully developed turbulence over almost 6 decades down to the range of nano-Tesla field amplitudes. The magnetic fluctuations are interpreted as being due to the parallel dynamics of drift-wave turbulence. The predicted strong β dependence of the magnetic fluctuations is experimentally confirmed. For the present parameters, anomalous transport due to the magnetic turbulence can be neglected compared with the electrostatic contribution.

Original languageEnglish
Article number085008
JournalPlasma Physics and Controlled Fusion
Issue number8
StatePublished - 1 Aug 2008
Externally publishedYes


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