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