Modification of the current profile in DIII-D by off-axis electron cyclotron current drive
Modification of the current profile in DIII-D by off-axis electron cyclotron current drive
复制标题
通过离轴电子回旋电流驱动修改 DIII-D 中的电流分布
DOI：
10.1088/0741-3335/41/12b/308
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
B. Rice
中科院分区：
文献类型：
--
作者：
T. Luce;Y. Lin;R. Harvey;G. Giruzzi;J. Lohr;C. Petty;P. Politzer;R. Prater;B. Rice
在DIII-D托卡马克上测量了电子回旋波吸收引起的局域无感电流。通过运动斯塔克效应光谱学在内部磁场测量中可以看到非感应电流的明显证据。通过比较有电子回旋波能和无电子回旋波能放电时的总电流和欧姆电流分布来评估非感应电流的大小和位置。测量的电流与磁轴附近的Fokker-Planck计算结果一致，但随着电流驱动器位置移动到半半径处，电流超过了预测值。
Localized non-inductive currents due to electron cyclotron wave absorption have been measured on the DIII-D tokamak. Clear evidence of non-inductive currents is seen on the internal magnetic field measurements by motional Stark effect spectroscopy. The magnitude and location of the non-inductive current is evaluated by comparing the total and ohmic current profiles of discharges with and without electron cyclotron wave power. The measured current agrees with Fokker-Planck calculations near the magnetic axis, but exceeds the predicted value as the location of the current drive is moved to the half-radius.