PROFILE CONTROL WITH LOWER-HYBRID WAVES ON ASDEX

被引:33
作者
SOLDNER, FX [1 ]
LEUTERER, F [1 ]
BARTIROMO, R [1 ]
BERNABEI, S [1 ]
BUCHSE, R [1 ]
GEHRE, O [1 ]
HARVEY, RW [1 ]
KORNHERR, M [1 ]
MCCORMICK, K [1 ]
MURMANN, HD [1 ]
PEREVERZEV, GV [1 ]
机构
[1] MAX PLANCK INST PLASMA PHYS,EURATOM ASSOC,GARCHING,GERMANY
关键词
D O I
10.1088/0029-5515/34/7/I06
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Controlled modification of the radial profiles of the plasma current, electron temperature and density was achieved in the ASDEX divertor tokamak with lower hybrid waves. Variation of the lower hybrid power and current deposition profiles was accomplished by tailoring the launched wave spectra or by compound antenna phasing. The current and temperature profiles could be largely decoupled. MHD modes were strongly influenced by the current profile modifications. Sawteeth and m = 1 modes were suppressed up to the density limit of lower hybrid current drive on ASDEX (nBAR(e) = 5 x 10(19) m-3). The electron temperature profile peaked in this case and the global confinement was improved.
引用
收藏
页码:985 / 1016
页数:32
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