Kinetic equilibrium reconstruction with internal safety factor profile constraints on EAST tokamak

Reconstruction of plasma equilibrium plays an important role in the analysis and simulation of plasma experiments. The kinetic equilibrium reconstruction with pressure and edge current constraints has been employed on EAST tokamak. However, the internal safety factor ( q ) profile is not accurate. T...

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Bibliographic Details
Published in:Plasma science & technology 2024-04, Vol.26 (4), p.45102
Main Authors: FAN, Haochen, LI, Guoqiang, QIAN, Jinping, ZHANG, Xuexi, WU, Xiaohe, CHU, Yuqi, ZHU, Xiang, LIAN, Hui, LIU, Haiqing, LYU, Bo, JIN, Yifei, ZANG, Qing, HUANG, Jia
Format: Article
Language:English
Subjects:
equilibrium reconstruction
kinetic equilibrium
polarimeter-interferometer
profile
tokamak data analysis
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Summary:Reconstruction of plasma equilibrium plays an important role in the analysis and simulation of plasma experiments. The kinetic equilibrium reconstruction with pressure and edge current constraints has been employed on EAST tokamak. However, the internal safety factor ( q ) profile is not accurate. This paper proposes a new way of incorporating q profile constraints into kinetic equilibrium reconstruction. The q profile is yielded from the Polarimeter Interferometer (POINT) reconstruction. Virtual probes containing information on q profile constraints are added to inputs of the kinetic equilibrium reconstruction program to obtain the final equilibrium. The new equilibrium produces a more accurate internal q profile. This improved method would help analyze EAST experiments.
ISSN:1009-0630
DOI:10.1088/2058-6272/ad0d48