Analysis of uncertainty in equilibrium reconstruction in the EAST superconducting tokamak

被引：25
|
作者：
Liu, G. J. [1 ]
Wan, B. N. [1 ]
Sun, Y. W. [1 ]
Xiao, B. J. [1 ]
Wang, Y. [1 ]
Luo, Zh. P. [1 ]
Qian, J. P. [1 ]
Liu, D. M. [2 ]
机构：
[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
[2] Hefei Univ Technol, Sch Elect Engn & Automat, Hefei 230009, Peoples R China
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2013年 / 84卷 / 07期
基金：
中国国家自然科学基金;
关键词：
H-MODE PEDESTAL; PLASMA BOUNDARY; MAGNETIC ANALYSIS; DIII-D; SHAPE; IDENTIFICATION;
D O I：
10.1063/1.4811657
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The analysis of uncertainties of magnetic measurements in equilibrium reconstruction is carried out on the EAST (Experimental Advanced Superconducting Tokamak) tokamak. It is shown that uncertainties of magnetic diagnostics are about 0.2% and 10 mWb for flux loops and 0.6% and 20 G for magnetic probes. Analyzing the sensitivity of the magnetic data uncertainty in the plasma shape reconstruction is presented, based on EFIT fixed boundary and fitting mode and applying overall uncertainty as fitting weight in EFIT. It is found that reconstruction uncertainties are ranged in 0.5-1.4 cm for 6 control segments, less than 0.8 cm for X-points, and 1.0-1.6 cm for strike points with 95% confidence, in the last experimental campaign on the EAST tokamak. (C) 2013 AIP Publishing LLC.
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收藏
页数：6
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