Algorithm Validation of the Current Profile Reconstruction of EAST Based on Polarimeter/Interferometer

QIAN Jinping (钱金平); L. L. LAO; REN Qilong (任启龙); WAN Baonian (万宝年); LIU Haiqin (刘海庆); ZENG Long (曾龙); LUO Zhengping (罗正平); K. HANADA; CHEN Dalong (陈大龙); SHI Tonghui (石同辉); SUN Youwen (孙有文); SHEN Biao (沈飙); XIAO Bingjia (肖炳甲)

doi:10.1088/1009-0630/17/1/14

Plasma Science and Technology > 2015 > 17(1): 75-79. > DOI: 10.1088/1009-0630/17/1/14

QIAN Jinping (钱金平), L. L. LAO, REN Qilong (任启龙), WAN Baonian (万宝年), LIU Haiqin (刘海庆), ZENG Long (曾龙), LUO Zhengping (罗正平), K. HANADA, CHEN Dalong (陈大龙), SHI Tonghui (石同辉), SUN Youwen (孙有文), SHEN Biao (沈飙), XIAO Bingjia (肖炳甲). Algorithm Validation of the Current Profile Reconstruction of EAST Based on Polarimeter/Interferometer[J]. Plasma Science and Technology, 2015, 17(1): 75-79. DOI: 10.1088/1009-0630/17/1/14

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Algorithm Validation of the Current Profile Reconstruction of EAST Based on Polarimeter/Interferometer

1 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China 2 General Atomics, San Diego 92037, California, USA 3 Kuyushu University, Fukuoka 8160000, Japan

Funds: supported by the National Magnetic Confinement Fusion Program of China (Nos. 2012GB101002, 2014GB106002, 2014GB103000, 2013GB10200) and National Natural Science Foundation of China (Nos. 11105184, 11205199 and 11375237)

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Received Date: April 15, 2014

Graphical Abstract

Abstract

Abstract

The method of plasma current profile reconstruction using the polarime- ter/interferometer (POINT) data from a simulated equilibrium is explored and validated. It is shown that the safety factor (q) profile can be generally reconstructed from the external magnetic and POINT data. The reconstructed q profile is found to reasonably agree with the initial equilibriums. Comparisons of reconstructed q and density profiles using the magnetic data and the POINT data with 3%, 5% and 10% random errors are investigated. The result shows that the POINT data could be used to a reasonably accurate determination of the q profile.
- plasma equilibrium,
- current profile,
- polarimeter/interferometer

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