Two-dimensional vacuum ultraviolet images in different MHD events on the EAST tokamak

Zhijun WANG (王智君); Xiang GAO (高翔); Tingfeng MING (明廷凤); Yumin WANG (王嵎民); Fan ZHOU (周凡); Feifei LONG (龙飞飞); Qing ZHUANG (庄清); EAST Team

doi:10.1088/2058-6272/aa9477

Plasma Science and Technology > 2018 > 20(2): 25103-025103. > DOI: 10.1088/2058-6272/aa9477

Zhijun WANG (王智君), Xiang GAO (高翔), Tingfeng MING (明廷凤), Yumin WANG (王嵎民), Fan ZHOU (周凡), Feifei LONG (龙飞飞), Qing ZHUANG (庄清), EAST Team. Two-dimensional vacuum ultraviolet images in different MHD events on the EAST tokamak[J]. Plasma Science and Technology, 2018, 20(2): 25103-025103. DOI: 10.1088/2058-6272/aa9477

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Two-dimensional vacuum ultraviolet images in different MHD events on the EAST tokamak

1 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China 2 University of Science and Technology of China, Hefei 230026, People’s Republic of China

Funds: This work is supported by National Natural Science Foun?dation of China under Contract No. 11605244 and the National Magnetic Confinement Fusion Science Program of China under Contract Nos. 2014GB106000, 2014GB106001 and 2013GB106000.

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Received Date: August 28, 2017

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Abstract

Abstract

A high-speed vacuum ultraviolet (VUV) imaging telescope system has been developed to measure the edge plasma emission (including the pedestal region) in the Experimental Advanced Superconducting Tokamak (EAST). The key optics of the high-speed VUV imaging system consists of three parts: an inverse Schwarzschild-type telescope, a micro-channel plate (MCP) and a visible imaging high-speed camera. The VUV imaging system has been operated routinely in the 2016 EAST experiment campaign. The dynamics of the two-dimensional (2D) images of magnetohydrodynamic (MHD) instabilities, such as edge localized modes (ELMs), tearing-like modes and disruptions, have been observed using this system. The related VUV images are presented in this paper, and it indicates the VUV imaging system is a potential tool which can be applied successfully in various plasma conditions.
- VUV,
- MHD,
- EAST

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References (18)

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