Experimental studies of electron transport

被引:123
作者
Ryter, F
Angioni, C
Beurskens, M
Cirant, S
Hoang, GT
Hogeweij, GMD
Imbeaux, F
Jacchia, A
Mantica, P
Suttrop, W
Tardini, G
机构
[1] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany
[2] Assoc EURATOM Confederat Suisse, Ecole Polytech Lausanne, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland
[3] EURATOM, FOM, Inst Plasmafys Rijnhuizen, Trilateral Euroregio Cluster, NL-3430 BE Nieuwegein, Netherlands
[4] EURATOM, ENEA, CNR, Ist Fis Plasma, I-20133 Milan, Italy
[5] CEN Cadarache, EURATOM Assoc, CEA, Dept Rech Fus Controlee, F-13108 St Paul Les Durance, France
关键词
D O I
10.1088/0741-3335/43/12A/325
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
Electron transport in tokamaks has many different features which are briefly reviewed. The paper is focused on electron heat transport in conventional tokamak plasmas. An inter-machine comparison indicates that the non-dimensional gradient length of the electron temperature profiles R/L-Te, is almost independent of the devices and varies little with plasma parameters. This strongly suggests that electron heat transport is governed by turbulence with a threshold in R/L-Te.. This is confirmed by modulation experiments using electron cyclotron heating. Simulations with empirical and physics-based transport models confirm this assumption.
引用
收藏
页码:A323 / A338
页数:16
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