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Radiation-driven m  =  2 island formation and dynamics near density limit in experimental advanced superconducting tokamak ohmic plasma

Liqing Xu, Yanmin Duan, Kaiyun Chen, Hailin Zhao, Zhenping Luo, Zhen Zheng, Yong Liu, Haiqing Liu, Yingjie Chen, Yuan Yi2017年被引用 16Nuclear FusionIF 3出版社

A radiation-driven m  =  2 island was observed in the experimental advanced superconducting tokamak (EAST) ohmic plasma, near the density limit. The mode onset occurs when the the ohmic heating input is less than the radiative cooling loss, which agrees with the mode onset behavior of the thermo-resistive model. The evolution of the equilibrium during the mode process was obtained using the ONETWO transport code, with inputs comprising the experimental electron temperature and density profiles. A large m  =  2 island can drive an m  =  1 sideband mode, which leads to an internal crash that appears as a large change in temperature that occurs not only in the q  =  2 region but also in the core.

日本語訳

放射駆動のm=2アイランドが、実験先進超伝導トカマク(EAST)のオーミックプラズマにおいて、密度限界付近で観測された。モードの発生は、オーミック加熱入力が放射冷却損失よりも小さいときに生じ、これは熱抵抗性モデルのモード発生挙動と一致する。モード過程における平衡の時間発展は、実験的な電子温度分布と密度分布を入力とするONETWO輸送コードを用いて得られた。大きなm=2アイランドはm=1サイドバンドモードを駆動し、これはq=2領域だけでなくコアにおいても大きな温度変化として現れる内部クラッシュを引き起こす。

装置

east高精度(タイトル一致)

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Ohmic heatingDensity limit
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