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

被引：84
|
作者：
Bindslev, H. [1 ]
Nielsen, S. K.
Porte, L.
Hoekzema, J. A.
Korsholm, S. B.
Meo, F.
Michelsen, P. K.
Michelsen, S.
Oosterbeek, J. W.
Tsakadze, E. L.
Westerhof, E.
Woskov, P.
机构：
[1] EURATOM, Riso Natl Lab, DK-4000 Roskilde, Denmark
[2] EURATOM, Forschungszentrum Julich GmbH, Inst Plasmaphys, D-52425 Julich, Germany
[3] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA
[4] Ecole Polytech Fed Lausanne, CRPP, EURATOM, Confederat Suisse, CH-1015 Lausanne, Switzerland
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.97.205005
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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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页数：4
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