Life time of plasma states near transition boundary

被引：0
作者：
Itoh, SI [1 ]
Itoh, K
Yagi, M
机构：
[1] Kyushu Univ, Appl Mech Res Inst, Kasuga, Fukuoka 8168580, Japan
[2] Natl Inst Fus Sci, Gifu 5095292, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2005年 / 74卷 / 03期
关键词：
plasma turbulence; transition; life time; toroidal plasma; neoclassical tearing mode; magnetic reconnection; turbulence trigger; probabilistic onset; steady state operation;
D O I：
10.1143/JPSJ.74.947
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The stochastic trigger of the neoclassical tearing mode (NTM) in toroidal confinement plasmas by the background turbulence is studied. The life time is given by the inverse of the statistical average of transition rate. On the basis of the statistical theory of a plasma turbulence, the life time of the state free from the NTM is obtained. The dependence on the plasma parameters is explicitly shown. The beta limit by the NTM is found to be diffused. This gives a new insight for the database of operational boundary of toroidal plasmas.
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收藏
页码：947 / 950
页数：4
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