Ohmic Radio-Frequency Synergy Current Drive and Transformer Recharging Experiments in the HT-7 Tokamak

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	CHEN Zhong-Yong
	WAN Bao-Nian
	SHI Yue-Jiang
	HU Li-Qun
	XU Han-Dong

关键词 ： 52.55.Fa, 52.35.Hr, 52.50.Sw, 52.50.Nr

Abstract： Lower hybrid current drive (LHCD) experiments for investigating the interaction between lower hybrid (LH) wave and residual dc electric field were performed in extensive plasma parameter ranges in the HT-7 superconducting tokamak. The experimental results are well fitted to the Karney--Fisch theory on the efficiency of LH waves energy converted to poloidal magnetic field energy. The fraction of absorbed LH power is about 0.75 for the HT-7 machine, and the upshift of the LH-wave parallel refraction index during LHCD experiments have been derived by the optimizing fitting parameters. The LH wave is also used for the transformer recharging when the plasma current is maintained unchanged. The highest efficiency about 7% has been achieved in HT-7 machine.

Key words： 52.55.Fa 52.35.Hr 52.50.Sw 52.50.Nr

出版日期: 2005-07-01

:	52.55.Fa	(Tokamaks, spherical tokamaks)
	52.35.Hr	(Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid))
	52.50.Sw	(Plasma heating by microwaves; ECR, LH, collisional heating)
	52.50.Nr	(Plasma heating by DC fields; ohmic heating, arcs)

引用本文:

CHEN Zhong-Yong;WAN Bao-Nian;SHI Yue-Jiang; HU Li-Qun;XU Han-Dong. Ohmic Radio-Frequency Synergy Current Drive and Transformer Recharging Experiments in the HT-7 Tokamak[J]. 中国物理快报, 2005, 22(7): 1721-1724.
CHEN Zhong-Yong, WAN Bao-Nian, SHI Yue-Jiang, HU Li-Qun, XU Han-Dong. Ohmic Radio-Frequency Synergy Current Drive and Transformer Recharging Experiments in the HT-7 Tokamak. Chin. Phys. Lett., 2005, 22(7): 1721-1724.

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https://cpl.iphy.ac.cn/CN/ 或 https://cpl.iphy.ac.cn/CN/Y2005/V22/I7/1721