Profile Measurement of Ion Temperature and Toroidal Rotation Velocity with Charge Exchange Recombination Spectroscopy Diagnostics in the HL-2A Tokamak

WU Jing (吴静); YAO Lieming (姚列明); ZHU Jianhua(朱建华); HAN Xiaoyu (韩晓玉); LI Wenzhu(李文柱)

doi:10.1088/1009-0630/14/11/02

Plasma Science and Technology > 2012 > 14(11): 953-957. > DOI: 10.1088/1009-0630/14/11/02

WU Jing (吴静), YAO Lieming (姚列明), ZHU Jianhua(朱建华), HAN Xiaoyu (韩晓玉), LI Wenzhu(李文柱). Profile Measurement of Ion Temperature and Toroidal Rotation Velocity with Charge Exchange Recombination Spectroscopy Diagnostics in the HL-2A Tokamak[J]. Plasma Science and Technology, 2012, 14(11): 953-957. DOI: 10.1088/1009-0630/14/11/02

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Profile Measurement of Ion Temperature and Toroidal Rotation Velocity with Charge Exchange Recombination Spectroscopy Diagnostics in the HL-2A Tokamak

1.
School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
2.
Center for Fusion Science, Southwestern Institute of Physics, Chengdu 610064, China
3.
College of Physical Science and Technology，SiChuan University Chengdu 610041, China

Funds: supported by “the ITER Research Project of China Matched Program ( No. 2009GB107004)”and “the Fundamental Research Funds for the Central Universities”( No. ZYGX2010J056)

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Received Date: September 22, 2011

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Abstract

Abstract

This paper deals with the profile measurement of impurity ion temperature and toroidal rotation velocity that can be achieved by using the Charge eXchange Recombination Spectrum (CXRS) diagnostics tool built on the magnetic confinement HL-2A Tokamak. By using CXRS, it arrives at an accurate impurity ion temperature and toroidal plasma rotation velocity profile under the condition of neutral beam injection (NBI) heating. Considering the edge effect of the line of CVI 529.06nm (n= 8-7), which contains three lines (active exciting spectral line (ACX), passivity exciting spectral line (PCX) and electron exciting spectral line (ICE)), and using three Gaussian fitted curves, we obtain the following experimental results: the core ion temperature of HL-2A device is nearly thousands of eV, and the plasma rotation velocity reaches about 104 m.s-1. At the end of paper, some explanations are presented for the relationship between the curves and the inner physical mechanism.

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