Role of Energetic Electrons during Current Ramp-up and Production of High Poloidal Beta Plasma in Non-inductive Current Drive on QUEST,
Role of Energetic Electrons during Current Ramp-up and Production of High Poloidal Beta Plasma in Non-inductive Current Drive on QUEST,
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QUEST 无感电流驱动中电流上升和高极向 Beta 等离子体产生过程中高能电子的作用，
DOI：
10.1088/0029-5515/54/2/023010
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发表时间：
2013
期刊：
影响因子：
3.3
通讯作者：
A. Higashijima
中科院分区：
文献类型：
--
作者：
Saya Tashima;H. Zushi;M. Isobe;K. Hanada;H. Idei;K. Nakamura;A. Fujisawa;K. Matsuoka;M. Hasegawa;Y. Nagashima;S. Okamura;S. Banerjee;S. Kawasaki;H. Nakashima;A. Higashijima
在球形托卡马克探索器中，已经使用电子回旋波演示了一种无感电流上升的方案。该结构的特点是高的环向磁镜比为2，稳定的垂直磁场超过环向磁场的10%。用硬X射线研究了能量大于10keV的高能电子的产生和限制。由于高能电子压力，形成了一个自然偏滤器，在高极向β(约3-4)处，内侧极向场为零。
A scenario for non-inductive current ramp-up has been demonstrated using electron cyclotron waves in the spherical tokamak QUEST. The configuration was characterized by a high toroidal magnetic mirror ratio of 2 and a steady vertical magnetic field of more than 10% of the toroidal magnetic field. The generation and confinement of energetic electrons having energy greater than 10 keV were studied using hard x-rays. Because of the energetic electron pressure, a natural divertor formed with an inboard poloidal field null at the high poloidal beta (approximately 3–4).