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

H. Bindslev; S.K. Nielsen; L. Porte; J.A. Hoekzema; Søren Bang Korsholm; F. Meo; Poul Michelsen; S. Michelsen; J.W. Oosterbeek; E.L. Tsakadze; E. Westerhof; P. Woskov

doi:10.1103/PhysRevLett.97.205005

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

H. Bindslev, S.K. Nielsen, L. Porte, J.A. Hoekzema, Søren Bang Korsholm, F. Meo, Poul Michelsen, S. Michelsen, J.W. Oosterbeek, E.L. Tsakadze, E. Westerhof, P. Woskov

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Abstract

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.

Original language	English
Journal	Physical Review Letters
Volume	97
Issue number	20
Pages (from-to)	205005
Number of pages	4
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.97.205005
Publication status	Published - 2006

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title = "Fast-ion dynamics in the TEXTOR tokamak measured by collective Thomson scattering",

abstract = "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. ",

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T1 - Fast-ion dynamics in the TEXTOR tokamak measured by collective Thomson scattering

AU - Bindslev, H.

AU - Nielsen, S.K.

AU - Porte, L.

AU - Hoekzema, J.A.

AU - Korsholm, Søren Bang

AU - Meo, F.

AU - Michelsen, Poul

AU - Michelsen, S.

AU - Oosterbeek, J.W.

AU - Tsakadze, E.L.

AU - Westerhof, E.

AU - Woskov, P.

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

KW - Energiteknologier på vej

U2 - 10.1103/PhysRevLett.97.205005

DO - 10.1103/PhysRevLett.97.205005

M3 - Journal article

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SN - 0031-9007

VL - 97

SP - 205005

JO - Physical Review Letters

JF - Physical Review Letters

IS - 20

ER -

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

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