A New Wall Conditioning Technique Developed on the HT-7 Superconducting Tokamak with a Permanent Magnetic Field

Chin. Phys. Lett.

1997, Vol. 14

Issue (12): 916-919 DOI:

Original Articles

A New Wall Conditioning Technique Developed on the HT-7 Superconducting Tokamak with a Permanent Magnetic Field

ZHAO Yan-ping;LI Jian-gang;XIE Ji-kang;MENG Yue-dong;WU Xin-chao;HE Ye-xi;XUE Di-ye;DENG Xu;SHAO Yu-gui

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031

Cite this article:

ZHAO Yan-ping, LI Jian-gang, XIE Ji-kang et al 1997 Chin. Phys. Lett. 14 916-919

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Abstract A new technique for wall conditioning with a permanent magnetic field has been tested and developed on the HT-7 superconducting tokamak by ion cyclotron range frequency wave injection. The operation ranges for conditioning and recycling was investigated with different working gas (D₂, He), toroidal field (0.1-2.5 T) and rf powers. The experimental results show that its cleaning efficiency is about three times higher than that of glow discharge cleaning. This new technique has been used daily during experiments.

Keywords: 52.40.Hf

Published: 01 December 1997

PACS:

52.40.Hf

(Plasma-material interactions; boundary layer effects)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I12/0916

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	ZHAO Yan-ping
	LI Jian-gang
	XIE Ji-kang
	MENG Yue-dong
	WU Xin-chao
	HE Ye-xi
	XUE Di-ye
	DENG Xu
	SHAO Yu-gui

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