Experimental Observation of a Magnetic-Turbulence Threshold for Runaway-Electron Generation in the TEXTOR Tokamak

被引：72

作者：

Zeng, L. ^{[1
,2
]}

Koslowski, H. R. ^{[1
]}

Liang, Y. ^{[1
]}

Lvovskiy, A. ^{[1
]}

Lehnen, M. ^{[1
,3
]}

Nicolai, D. ^{[1
]}

Pearson, J. ^{[1
]}

Rack, M. ^{[1
]}

Jaegers, H. ^{[1
]}

Finken, K. H. ^{[4
]}

Wongrach, K. ^{[4
]}

Xu, Y. ^{[5
]}

机构：

[1] Forschungszentrum Julich, Inst Energy & Climate Res Plasma Phys IEK 4, Assoc EURATOM FZJ, Trilateral Euregio Cluster, D-52425 Julich, Germany

[2] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[3] ITER Org, F-13115 St Paul Les Durance, France

[4] Univ Dusseldorf, Inst Laser & Plasmaphys, D-40225 Dusseldorf, Germany

[5] Koninklijke Mil Sch, Trilateral Euregio Cluster, Ecole Royale Mil, Assoc Euratom Belgian State,Lab Plasmafys,Lab Phy, B-1000 Brussels, Belgium

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 23期

关键词：

DISRUPTIONS; TERMINATION;

D O I：

10.1103/PhysRevLett.110.235003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic turbulence is observed at the beginning of the current quench in intended TEXTOR disruptions. Runaway electron (RE) suppression has been experimentally found at magnetic turbulence larger than a certain threshold. Below this threshold, the generated RE current is inversely proportional to the level of magnetic turbulence. The magnetic turbulence originates from the background plasma and the amplitude depends strongly on the toroidal magnetic field and plasma electron density. These results explain the previously found toroidal field threshold for RE generation and have to be considered in predictions for RE generation in ITER.

引用

页数：5

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