首页|Equilibrium reconstruction method for self-organized plasmas on reversed field pinches with polarimeter-interferometer

Equilibrium reconstruction method for self-organized plasmas on reversed field pinches with polarimeter-interferometer

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In the reversed field pinch(RFP),plasmas exhibit various self-organized states.Among these,the three-dimensional(3D)helical state known as the"quasi-single-helical"(QSH)state enhances RFP confinement.However,accurately describing the equilibrium is challenging due to the presence of 3D structures,magnetic islands,and chaotic regions.It is difficult to obtain a balance between the available diagnostic and the real equilibrium structure.To address this issue,we introduce KTX3DFit,a new 3D equilibrium reconstruction code specifically designed for the Keda Torus eXperiment(KTX)RFP.KTX3DFit utilizes the stepped-pressure equilibrium code(SPEC)to compute 3D equilibria and uses polarimetric interferometer signals from experiments.KTX3DFit is able to reconstruct equilibria in various states,including axisymmetric,double-axis helical(DAx),and single-helical-axis(SHAx)states.Notably,this study marks the first integration of the SPEC code with internal magnetic field data for equilibrium reconstruction and could be used for other 3D configurations.

equilibrium reconstructionpolarimeter-interferometermulti-region relaxed MHD3D self-organized statesreversed field pinch

黄玉华、刘珂、毛文哲、祝曹祥、兰涛、祖一鸣、周永康、汪兴康、邓鹏、王立、彭湃、刘阿娣、周楚、刘海峰、李弘、谢锦林、许宇鸿、丁卫星、刘万东、庄革

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School of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230026,People's Republic of China

Institute for Fusion Theory and Simulation,Department of Physics,Zhejiang University,Hangzhou 310027,People's Republic of China

School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,People's Republic of China

2024

10.1088/2058-6272/ad79b0

等离子体科学和技术(英文版)
中国科学院合肥物质科学研究所 中国力学学会

等离子体科学和技术(英文版)

EI
影响因子：0.297
ISSN：1009-0630
年,卷(期)：2024.26(12)