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Journal article

Fast-ion dynamics in the TEXTOR tokamak measured by collective Thomson scattering

From

Risø National Laboratory for Sustainable Energy, Technical University of Denmark1

Here we present the first measurements by collective Thomson scattering of the evolution of fast-ion populations in a magnetically confined fusion plasma. 150 kW and 110 Ghz radiation from a gyrotron were scattered in the TEXTOR tokamak plasma with energetic ions generated by neutral beam injection and ion cyclotron resonance heating.

The temporal behavior of the spatially resolved fast-ion velocity distribution is inferred from the received scattered radiation. The fast-ion dynamics at sawteeth and the slowdown after switch off of auxiliary heating is resolved in time. The latter is shown to be in close agreement with modeling results.

Language: English
Year: 2006
Pages: 205005
ISSN: 10797114 and 00319007
Types: Journal article
DOI: 10.1103/PhysRevLett.97.205005
ORCIDs: Nielsen, S.K. , Korsholm, Søren Bang and Michelsen, Poul

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