中文摘要：

摘要：研究了在JT一60U运行参数下的n诱发的环向阿尔芬本征模（aTAE），由其实验数据得到了5和a的径向剖面（S=rdg／qdr，α=q^[2]Rdβ／dr）。发现存在α极大值，尤其是在反剪切等离子体和高性能位形下。这证实了托卡马克中存在αTAE的全域捕获条件。在现行托卡马克中发现了多支αTAE。此外，还考察了在中性束注入实验过程中αTAE随时间的变化特性。

英文摘要：

The a-induced toroidal Alfv6n eigenmode （αTAE） is investigated upon the operation parameters of JT-60U. The radial s and a profiles （s=rdq/qdr, a=-q^[2]Rdfl/dr） are obtained via the data from experiments. There exists the a maximum, especially in the reversed shear plasmas and high performance configurations, which supports the globally trapped condition of the αTAE in tokamaks. Mutiple branches of aTAEs are found in present tokamaks. Furthermore. the time-variation of ctTAE during neutral beams iniection presented