Study of central plasma structure using soft X-ray signals | Zendy

Tianpeng Ma | Zendy; Hu Liqun | Zendy; Kaiyun Chen | Zendy

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Study of central plasma structure using soft X-ray signals

Author(s) -

Tianpeng Ma,

Hu Liqun,

Kaiyun Chen

Publication year - 2009

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.58.1110

Subject(s) - rotation (mathematics) , plasma , emissivity , physics , position (finance) , tokamak , instability , x ray , magnetohydrodynamics , optics , atomic physics , geometry , mathematics , mechanics , finance , quantum mechanics , economics

A method for studying the central plasma structure using soft X-ray signals in the HT-7 tokamak is reported. Through analysing a typical discharge with MHD instability, the position and rotation direction of magnetic island are obtained from the soft X-ray signals. The magnetic island position and rotation direction are validated from the contour map of soft X-ray emissivity and the m=2 mode rotation direction observed on the Mirnov signals.

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