学术报告
J-TEXT 学术报告第48期

间: 2016年06月28日(周二) 15:30

点: 二楼会议室

1. EPS预报告

报告人1 郭伟欣(HUST)

1 Isotopic dependence of impurity transport driven by ion temperature gradient turbulence

报告人2 黄名响(HUST)

2 Study the characteristic of minor disruption on J-TEXT tokamak

摘要:

The characteristic of minor disruptions is studied on J-TEXT tokamak. In the experiments, frequent minor disruptions, characterized with fast heat crash and density pump-out but without plasma current crash, are triggered after mode locking or field penetration by static m/n = 2/1 resonant magnetic perturbations (RMPs), where m and n are the poloidal and toroidal mode numbers, respectively. For minor disruption, it is found that the width of locked mode decreases, and the temperature decreases within the 2/1 rational surface and increases outside of that surface in a time scale of 1-2 ms through the electron-cyclotron-emission measurements, which means the fast flowing out of thermal energy. Later on, the locked mode, as well as the temperature, begin to recover until its initial state, then the next minor disruption occurs again. Further analysis shows that the excitation of minor disruption is possibly caused by the coupling of 2/1 locked mode with other mode (such as 1/1 mode), and this kind of mode coupling may even result in major disruption. In addition, after one minor disruption, a 3/2 mode may appear and compete with 2/1 mode, then disappears soon as the 2/1 mode is large enough.

2. 会议总结汇报

1. IEEE RT总结汇报:郑玮,胡斐然

2. APTWG总结汇报:陈忠勇,彭水涛,郭伟欣

欢迎各位老师同学参与讨论!

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