First observation of alpha particle loss induced by kinetic ballooning modes in TFTR deuterium-tritium experiments

被引：26

作者：

Chang, ZY ^{[1
]}

Budny, RV ^{[1
]}

Chen, L ^{[1
]}

Darrow, D ^{[1
]}

Fredrickson, ED ^{[1
]}

Janos, A ^{[1
]}

Mansfield, D ^{[1
]}

Mazzucato, E ^{[1
]}

McGuire, KM ^{[1
]}

Nazikian, R ^{[1
]}

Rewoldt, G ^{[1
]}

Strachan, JD ^{[1
]}

Tang, WM ^{[1
]}

Taylor, G ^{[1
]}

White, RB ^{[1
]}

Zweben, S ^{[1
]}

机构：

[1] UNIV CALIF IRVINE,DEPT PHYS,IRVINE,CA 92717

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.76.1071

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A correlation between the measured alpha particle loss and high frequency (similar to 100-200 kHz) magnetohydrodynamic (MHD) modes has been observed in some high beta (= plasma pressure/magnetic pressure) DT plasmas in TFTR. These modes are localized around the peak plasma. pressure gradient and have ballooning characteristics. Particle simulation shows that the loss is due to wave-particle resonances. Linear instability analysis indicates that the plasma is unstable to the kinetic MHD ballooning modes driven by strong local pressure gradients.

引用

页码：1071 / 1074

页数：4

共 20 条

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