Plasma and Fusion Research
Volume 6, 2402134 (2011)
Regular Articles
- 1)
- National Institute for Fusion Science, Toki 509-5292, Japan
- 2)
- Graduate University for Advanced Studies (SOKENDAI), Toki 509-5292, Japan
- 3)
- Institute of Advanced Energy, Kyoto University, Uji 611-0011, Japan
Abstract
Coupling the magnetic diagnostics and a 3D MHD equilibrium calculation code, the magnetic island is studied in the Large Helical Device (LHD) experiment. In an experiment, the collapse in the plasma core was observed in a configuration, which has large magnetic island produced by external perturbation coils. At the collapse, the temperatur profile was flattened. This suggests the magnetic island evolved. The magnetic island was observed by the magnetic diagnostics. The magnetic diagnostics also suggests evolving the magnetic island. A 3D MHD equilibrium is caluclated by the 3D MHD equilibrium code then signals of the magnetic diagnostics are simulated. Since the comparison of observed and calculated signals is comparable, the magnetic island in calculated equilibrium is similar to one of the experiment.
Keywords
magnetic island, MHD equilibrium, magnetic diagnostics, HINT2, JDIA
Full Text
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This paper may be cited as follows:
Yasuhiro SUZUKI, Satoru SAKAKIBARA, Kiyomasa WATANABE, Yoshiro NARUSHIMA, Satoshi OHDACHI, Satoshi YAMAMOTO, Hiroyuki OKADA and LHD experiment group, Plasma Fusion Res. 6, 2402134 (2011).