李国强 任启龙 刘素梅 宋云涛 中科院等离子体物理研究所 CFETR电流驱动的初步讨论 李国强 任启龙 刘素梅 宋云涛 中科院等离子体物理研究所
中性束切向注入 目前的窗口应该可以实现中性束切向注入 ITER NBI aperture size (58cm,136cm) May vertically tilt to drive off-axis current
The driven current of different injection angle 磁轴高度上水平入射 1 MeV NNBI, 30MW density profile is scaled from DIII-D 136345. ne=0.9e20/m^3 Density peaking=1.38 Calculated with ONETWO/ NUBEAM 切半径（cm) 400 450 500 550 600 650 700 Drive current (MA) 0.44 0.56 0.70 0.82 1.01 1.15 0.71 Driven current of 30MW NBI
ECCD for CFETR 140 GHz ECCD was selected, O1 mode density profile is scaled from DIII-D 136345 Calculated with ONETWO/TORAY-GA For ITER, the CQL3D results are about 1.2 times of TORAY-GA 弱场侧斜上方入射，扫描入射角度 需要更多的扫描计算 入射极向角 100 110 120 130 140 驱动电流(MA) 0.60 0.72 0.75 0.69 0.09 30MW ECCD, 环向角230度
ECCD calculation on ITER
LHCD LHCD efficiency becomes lower with the density increase, but still higher than NBCD and ECCD But the driven current cannot access the core region FDF, 30MW ITER, 30MW, ne=7.25e19/m^3
Discussion Lower density is beneficial for CD How to balance the density and fusion power? The combination of Heating/CD ?
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