Edge ion-to-electron temperature ratio in the Tore Supra tokamak

被引:54
|
作者
Kocan, M. [1 ]
Gunn, J. P. [1 ]
Pascal, J-Y [1 ]
Bonhomme, G. [2 ]
Fenzi, C. [1 ]
Gauthier, E. [1 ]
Segui, J-L [1 ]
机构
[1] CEA, IRFM, F-13108 St Paul Les Durance, France
[2] Nancy Univ, F-54506 Vandoeuvre Les Nancy, France
关键词
D O I
10.1088/0741-3335/50/12/125009
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
Both ion and electron temperatures in the scrape-off layer ( SOL) of the Tore Supra tokamak were measured by a retarding field analyzer during an ohmic density scan. SOL T-i was found to be higher than T-e by a factor of 4-7. The ion-to-electron temperature ratio tau decreases with increasing density. Core T-i and T-e measurements in Tore Supra combined with a multi-machine database of tau measurements show that tau > 1 also in the edge of the confined plasma and increases with radius.
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页数:10
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