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000836435 1001_ $$0P:(DE-Juel1)166347$$aGao, Xiang$$b0$$eCorresponding author
000836435 245__ $$aKey issues for long-pulse high- β N operation with the Experimental Advanced Superconducting Tokamak (EAST)
000836435 260__ $$aVienna$$bIAEA$$c2017
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000836435 520__ $$aIn the last few years, long-pulse H-mode plasma discharges (with small edge-localized modes and normalized beta, β N ~ 1) have been realized at the Experimental Advanced Superconducting Tokamak (EAST). This paper reports on high-β N (>1.5) discharges in the 2015 EAST campaign. The characteristics of these H-mode plasmas have been presented in a database. Analysis of the experimental limit of β N has revealed several main features of typical discharges. Firstly, efficient, stable high heating power is required. Secondly, control of impurity radiation (partly due to interaction between the plasma and the in-vessel components) is also a critical issue for the maintenance of high-β N discharges. In addition an internal transport barrier (ITB) has recently been observed in EAST, introducing further improvement in confinement surpassing H-mode plasmas. ITB dynamics is another key issue for high-β N plasmas in EAST. Each of these features is discussed in this paper. Study and improvement of these issues could be considered as the key to achieving long-pulse high-β N operation with EAST.
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000836435 7001_ $$0P:(DE-Juel1)143631$$aYang, Yao$$b1
000836435 7001_ $$0P:(DE-HGF)0$$aZhang, Tao$$b2
000836435 7001_ $$0P:(DE-HGF)0$$aLiu, Haiqing$$b3
000836435 7001_ $$0P:(DE-HGF)0$$aLi, Guoqiang$$b4
000836435 7001_ $$0P:(DE-HGF)0$$aMing, Tingfeng$$b5
000836435 7001_ $$0P:(DE-HGF)0$$aLiu, Zixi$$b6
000836435 7001_ $$0P:(DE-HGF)0$$aWang, Yumin$$b7
000836435 7001_ $$0P:(DE-Juel1)145673$$aZeng, Long$$b8
000836435 7001_ $$0P:(DE-Juel1)171363$$aHan, Xiang$$b9
000836435 7001_ $$0P:(DE-HGF)0$$aLiu, Yukai$$b10
000836435 7001_ $$0P:(DE-HGF)0$$aWu, Muquan$$b11
000836435 7001_ $$0P:(DE-HGF)0$$aQu, Hao$$b12
000836435 7001_ $$0P:(DE-HGF)0$$aShen, Biao$$b13
000836435 7001_ $$0P:(DE-HGF)0$$aZang, Qing$$b14
000836435 7001_ $$0P:(DE-HGF)0$$aYu, Yaowei$$b15
000836435 7001_ $$0P:(DE-HGF)0$$aKong, Defeng$$b16
000836435 7001_ $$0P:(DE-HGF)0$$aGao, Wei$$b17
000836435 7001_ $$0P:(DE-HGF)0$$aZhang, Ling$$b18
000836435 7001_ $$0P:(DE-HGF)0$$aCai, Huishan$$b19
000836435 7001_ $$0P:(DE-HGF)0$$aWu, Xuemei$$b20
000836435 7001_ $$0P:(DE-HGF)0$$aHanada, K.$$b21
000836435 7001_ $$0P:(DE-HGF)0$$aZhong, Fubin$$b22
000836435 7001_ $$0P:(DE-Juel1)130088$$aLiang, Yunfeng$$b23
000836435 7001_ $$0P:(DE-HGF)0$$aHu, Chundong$$b24
000836435 7001_ $$0P:(DE-HGF)0$$aLiu, Fukun$$b25
000836435 7001_ $$0P:(DE-HGF)0$$aGong, Xianzhu$$b26
000836435 7001_ $$0P:(DE-HGF)0$$aXiao, Bingjia$$b27
000836435 7001_ $$0P:(DE-HGF)0$$aWan, Baonian$$b28
000836435 7001_ $$0P:(DE-HGF)0$$aZhang, Xiaodong$$b29
000836435 7001_ $$0P:(DE-HGF)0$$aLi, Jiangang$$b30
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