Experimental Results of MHD Suppression with Modulated LHCD on the HT-7 Tokamak

作     者：毛剑珊 罗家融 沈飙 赵君煜 胡立群 徐国盛 徐汉东 沈慰慈 P.Phillips 高翔 

作者机构：Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China Fusion Research Center C1510 Univ. of Texas at Austin. TX 78712 USA 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2005年第7卷第3期

页      面：2816-2818页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：The project supported by the National Natural Science Foundation of China (Nos. 10275068 and 10075049) 

主　　题：HT-7 tokamak tearing mode modulation of lower hybrid current drive 

摘      要：Modulation of lower hybrid current drive was used successfully to suppress MHD activity. This was achieved in discharges with MHD m = 2 tearing modes during the discharge conditions Ip = 110 kA, Bt = 1.75 T, ne0 - 1.1 × 1013 cm-3. The delivering time of LHCD pulse is less then 30 μs. The amplitude, interval and the period of LHCD modulation pulse can be adjusted very conveniently. The modulation LHCD can be delivered very fast at any time during the discharge. The modulation LHCD period was always much shorter than the plasma resistive time (Tη ≈100 ms). So the profile of plasma current is changed much faster than the plasma resistive time. The different forms of LHCD modulating can be proved.