Toroidal Multipolar Expansion for Fast L-Mode Plasma Boundary Reconstruction in EAST

GUO Yong (郭勇); XIAO Bingjia (肖炳甲); LUO Zhengping (罗正平)

Plasma Science and Technology > 2011 > 13(3): 332-341.

GUO Yong (郭勇), XIAO Bingjia (肖炳甲), LUO Zhengping (罗正平). Toroidal Multipolar Expansion for Fast L-Mode Plasma Boundary Reconstruction in EAST[J]. Plasma Science and Technology, 2011, 13(3): 332-341.

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Toroidal Multipolar Expansion for Fast L-Mode Plasma Boundary Reconstruction in EAST

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

Funds: supported by the Major State Basic Research Development Program of China (973 program, No. 2009GB103000), National Natural Science Foundation of China (No. 10835009), and the Chinese Academy of Sciences with grant ID of KJCX3.SYW.N4

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Received Date: March 30, 2010

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Abstract

Abstract

A new method for plasma boundary reconstruction, based on the toroidal multipolar expansion (TME) scheme, is applied successfully in EAST. TME applies a limited number of toroidal multipolar moments based on toroidal coordinates to treat a two-dimensional problem of axisymmetric plasma equilibrium. The plasma boundary reconstructed by TME is consistent with the results by using EFIT. The method is su±ciently reliable and fast for real time shape control.
- toroidal multipolar expansion,
- fast plasma boundary reconstruction,
- experi- ment advanced superconducting

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