Magnetic well and instability thresholds in the TJ-II stellarator

被引:17
作者
Castellano, J [1 ]
Jiménez, JA [1 ]
Hidalgo, C [1 ]
Pedrosa, MA [1 ]
Fraguas, AL [1 ]
Pastor, I [1 ]
Herranz, J [1 ]
Alejaldre, C [1 ]
机构
[1] Asociac Euratom Ciemat, Lab Nacl Fus Confinamiento Magnet, Madrid 28040, Spain
关键词
D O I
10.1063/1.1430435
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
Experimental evidence for the controlled onset of fluctuations by varying the magnetic well in the plasma edge region of the TJ-II stellarator (major radius R=1.5 m, minor radius a<0.22 m, magnetic field B=1 T) has been obtained. The level of fluctuation, the degree of intermittency and the radial correlation of relevant quantities increase as the magnetic well is reduced. TJ-II possesses a high degree of flexibility, making it an ideal device for investigating the characteristics of transport close to instability thresholds. (C) 2002 American Institute of Physics.
引用
收藏
页码:713 / 716
页数:4
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