SUNIST装置的ECW辅助欧姆感应电流启动实验

核聚变与等离子体物理 ›› 2009, Vol. 29 ›› Issue (2): 121-125.

SUNIST装置的ECW辅助欧姆感应电流启动实验

谭熠，何也熙，解丽风，高喆，王文浩

(清华大学工程物理系，北京 100084)

收稿日期:2008-08-12 修回日期:2009-03-12 出版日期:2009-06-15 发布日期:2010-05-24
作者简介:谭熠(1982-)，男，湖南湘潭人，博士生，研究方向为球形托卡马克等离子体的电流建立与维持。
基金资助:
国家自然科学基金资助项目(10475043, 10535020)

ECW assited ohmic start-up experiments on the SUNIST spherical tokamak

TAN Yi, HE Ye-xi, XIE Li-feng, GAO Zhe, WANG Wen-hao

(Department of Engineering Physics, Tsinghua University, Beijing 100084)

Received:2008-08-12 Revised:2009-03-12 Online:2009-06-15 Published:2010-05-24

摘要/Abstract

摘要： 介绍了在SUNIST装置上进行的ECW辅助欧姆感应电流启动实验。在ECW(2.45GHz/20kW/10ms)和垂直场感应的共同作用下，先驱动起一个较小的等离子体电流(<1kA)，再投入欧姆场，可以获得比常规欧姆放电更高的电流爬升速率，提高伏秒数的利用效率。这种启动方式为SUNIST欧姆放电提高了灵活性，可以在不进行硬件改动的前提下增加调节等离子体平衡的余量，拉长放电的持续时间。

关键词: 电子回旋波, 球形托卡马克, 欧姆电流启动

Abstract: The experiments of ECW assisted ohmic start-up performed on the SUNIST spherical tokamak are presented. With the injection of ECW (2.45GHz/20kW/10ms), a small plasma current (<1kA) is initialed by the combination of the induction of vertical field and the asymmetry of the helical field. Consequently, plasma current is rampped up by the ohmic field with a higher speed than those in normal discharges. In this start-up mode, the utilization of volt seconds mainly provided by ohmic field is improved; extra capability of adjusting plasma equilibrium is obtained without any modification to the hardware. The duration of discharge is increased.

Key words: Electron cyclotron wave, Spherical tokamak, Ohmic start-up

中图分类号:

TL631.2⁺4

谭熠, 何也熙, 解丽风, 高喆, 王文浩. SUNIST装置的ECW辅助欧姆感应电流启动实验[J]. 核聚变与等离子体物理, 2009, 29(2): 121-125.

TAN Yi, HE Ye-xi, XIE Li-feng, GAO Zhe, WANG Wen-hao. ECW assited ohmic start-up experiments on the SUNIST spherical tokamak[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2009, 29(2): 121-125.

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