Phase Alignments between MHD Modes Followed by Minor Collapses on TST-2

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概要

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• MHD instabilities followed by minor collapses in the TST-2 plasma are studied. Precursors with toroidal mode numbers n = 1 and n = 2 localized in the plasmas core become phase aligned so that their mode amplitudes strengthen each other at a certain spatial point. During phase alignment, the total mode amplitude on the soft X-ray radiation profile does not show significant change, and a minor collapse occurs but does not terminate the discharge. This behaviour is similar to the results during a non-linear growth phase in three-dimensional MHD simulations [N. Mizuguchi et al., Phys. Plasmas 7, 940 (2000)]. However, predicted pressure-driven modes are not confirmed in these experiments.

著者

• Takase Yuichi

  Graduate School Of Frontier Sciences The Univ. Of Tokyo

• Nagashima Yoshihiko

  Graduate School Of Frontier Sciences The Univ. Of Tokyo

• Ejiri Akira

  Graduate School Of Frontier Science University Of Tokyo

• YAMADA Kotaro

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• AN Byung

  Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan

• KURASHINA Hiroki

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• WATANABE Osamu

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• Yamaguchi Takashi

  Graduate School Of Engineering Dept. Of Metallurgy University Of Tokyo

• Kobayashi Hiroaki

  Graduate School Of Bioagricultural Sciences Nagoya University

• Watanabe Osamu

  Graduate School Of Engineering Tokyo Metropolitan University

• Sasaki Makoto

  Graduate School Of Environmental Earth Science Hokkaido University

• Yamada Kotaro

  Graduate School of Advanced Science of Matter, Hiroshima University

• OOSAKO Takuya

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• ADACHI Yuuki

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• MASUDA Tetsuya

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• TOJO Hiroshi

  Graduate School of Frontier Sciences, The University of Tokyo

• EJIRI Akira

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• MATSUZAWA Haduki

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• MASUDA Tetsuya

  Graduate School of Frontier Sciences, The University of Tokyo

• TAKASE Yuichi

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan

• OOSAKO Takuya

  Graduate School of Frontier Sciences, The University of Tokyo

• TAKASE Yuichi

  Graduate School of Frontier Science, University Tokyo, Kashiwa 277-8561, Japan

• NAGASHIMA Yoshihiko

  Graduate School of Frontier Science, The University of Tokyo, Kashiwa 277-8561, Japan

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