Analysis and Performance of the Thomson Scattering Diagnostics on HT-7 Tokamak Based on I-EMCCD

SHAO Chunqiang(邵春强); ZHAO Junyu(赵君煜); ZANG Qing(臧庆); HAN Xiaofeng(韩效锋); XI Xiaoqi(席晓琦); YANG Jianhua(杨建华); CHEN Hui(陈慧); HU Ailan(胡爱兰)

doi:10.1088/1009-0630/16/8/01

Plasma Science and Technology > 2014 > 16(8): 721-725. > DOI: 10.1088/1009-0630/16/8/01

SHAO Chunqiang(邵春强), ZHAO Junyu(赵君煜), ZANG Qing(臧庆), HAN Xiaofeng(韩效锋), XI Xiaoqi(席晓琦), YANG Jianhua(杨建华), CHEN Hui(陈慧), HU Ailan(胡爱兰). Analysis and Performance of the Thomson Scattering Diagnostics on HT-7 Tokamak Based on I-EMCCD[J]. Plasma Science and Technology, 2014, 16(8): 721-725. DOI: 10.1088/1009-0630/16/8/01

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Analysis and Performance of the Thomson Scattering Diagnostics on HT-7 Tokamak Based on I-EMCCD

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

Funds: supported by National Natural Science Foundation of China (Nos. 11075187, 11275233), National Magnetic Confinement Fusion Science Program of China (Nos. 2013GB112003, 2011GB101003)

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Received Date: November 07, 2013

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Abstract

Abstract

A visible light imaging Thomson scattering (VIS-TVTS) diagnostic system has been developed for the measurement of plasma electron temperature on the HT-7 tokamak. The system contains a Nd:YAG laser (λ = 532 nm, repetition rate 10 Hz, total pulse duration ≈ 10 ns, pulse energy > 1.0 J), a grating spectrometer, an image intensifier (I.I.) lens coupled with an electron multiplying CCD (EMCCD) and a data acquisition and analysis system. In this paper, the measurement capability of the system is analyzed. In addition to the performance of the system, the capability of measuring plasma electron temperature has been proved. The profile of electron temperature is presented with a spatial resolution of about 0.96 cm (seven points) near the center of the plasma.
- visible imaging Thomson scattering, electron temperature, measurement ca- pability, I-EMCCD

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References (15)

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