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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
Citation: 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

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

  • 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.
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