Plasma Current Start-up, Ramp-up, and Achievement of Advanced Tokamak Plasmas without the Use of Ohmic Heating Solenoid in JT-60U
Plasma Current Start-up, Ramp-up, and Achievement of Advanced Tokamak Plasmas without the Use of Ohmic Heating Solenoid in JT-60U
复制标题
JT-60U 中不使用欧姆加热螺线管的等离子体电流启动、斜坡上升和实现先进托卡马克等离子体
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Jt U Team
中科院分区：
文献类型：
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作者：
Y. Takase;T. Fukuda;Xiang Gao;M. Gryaznevich;S. Ide;S. Itoh;Y. Kamada;T. Maekawa;O. Mitarai;Y. Miura;Y. Sakamoto;S. Shiraiwa;Takahiro Suzuki;Shigetoshi Tanaka;T. Taniguchi;K. Ushigusa;Jt U Team
首次证明了在不使用欧姆加热螺线管的情况下，可以形成βp = 3.6, βN = 1.6, HH98y2 = 1.6的高性能等离子体。等离子体启动和等离子体电流上升由垂直磁场和整形线圈完成，并结合EC、LH和NBI的加热和电流驱动。当r/a = 0.7时，qmin = 5.6时，q曲线深度反转，引导电流分数至少为90%。这一结果开辟了消除欧姆加热螺线管的可能性，这对改进托卡马克和ST反应堆的设计有很大的影响。
Formation of a high performance plasma with βp = 3.6, βN = 1.6, HH98y2 = 1.6 without the use of the Ohmic heating solenoid was demonstrated for the first time. Plasma start-up and plasma current ramp-up were accomplished by vertical field and shaping coils, combined with heating and current drive by EC, LH and NBI. The q profile is deeply reversed with qmin = 5.6 at r/a = 0.7, and the bootstrap current fraction was at least 90%. This result opens up the possibility of eliminating the Ohmic heating solenoid, which has a great impact on improving tokamak and ST reactor designs.