EAST equilibrium current profile reconstruction using polarimeter-interferometer internal measurement constraints

J. P. Qian, L. L. Lao, H. Q. Liu, W. X. Ding, L. Zeng, Z. P. Luo, Q. L. Ren, Y. Huang, J. Huang, D. L. Brower, K. Hanada, D. L. Chen, Y. W. Sun, B. Shen, X. Z. Gong, B. J. Xiao, B. N. Wan

    研究成果: ジャーナルへの寄稿学術誌査読

    45 被引用数 (Scopus)

    抄録

    The first equilibrium reconstruction of EAST current-density profile based on internal Faraday rotation measurements provided by the POlarimeter-INTerferometer (POINT) diagnostic is demonstrated using the EFIT equilibrium reconstruction code. EFIT incorporates 11 simultaneous line-integrated density and Faraday effect measurements from POINT to self-consistently reconstruct the equilibrium toroidal current density profile using a Faraday rotation reconstruction algorithm. It is shown that the POINT measurements can be applied to improve the accuracy of core plasma current density and q profile on EAST. Comparisons of magnetic surfaces and the q profile reconstructed using external magnetic data against those using magnetic and POINT data are presented. Equilibrium reconstructions using POINT data are found to be consistent with sawtooth phenomena. The sensitivity of equilibrium reconstruction to POINT measurements indicates Faraday rotation provides important constraints for determining the current profile.

    本文言語英語
    論文番号036008
    ジャーナルNuclear Fusion
    57
    3
    DOI
    出版ステータス出版済み - 3月 2017

    !!!All Science Journal Classification (ASJC) codes

    • 核物理学および高エネルギー物理学
    • 凝縮系物理学

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