Characteristics of current quenches during disruptions in the J-TEXT tokamak

被引：11

作者：

Zhang, Y. ^{[1
]}

Chen, Z. Y. ^{[1
]}

Fang, D. ^{[1
]}

Jin, W. ^{[1
]}

Huang, Y. H. ^{[1
]}

Wang, Z. J. ^{[1
]}

Yang, Z. J. ^{[1
]}

Chen, Z. P. ^{[1
]}

Ding, Y. H. ^{[1
]}

Zhang, M. ^{[1
]}

Zhuang, G. ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Sch Elect & Elect Engn, Wuhan 430074, Peoples R China

来源：

PHYSICA SCRIPTA | 2012年 / 86卷 / 02期

关键词：

PLASMA CURRENT QUENCH;

D O I：

10.1088/0031-8949/86/02/025501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Characteristics of tokamak current quenches are an important issue for the determination of electro-magnetic forces that act on the in-vessel components and vacuum vessel during major disruptions. The characteristics of current quenches in spontaneous disruptions in the J-TEXT tokamak have been investigated. It is shown that the waveforms for the fastest current quenches are more accurately fitted by linear current decays than exponential, although neither is a good fit in many slower cases. The minimum current quench time is about 2.4 ms for the J-TEXT tokamak. The maximum instantaneous current quench rate is more than seven times the average current quench rate in J-TEXT.

引用

页数：4

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