First Observation of Plasma Motion in GAMMA 10 Using a Fast Camera

• NISHINO Nobuhiro

  Graduate School of Engineering, Hiroshima University

• NAKASHIMA Yousuke

  Plasma Research Center, University of Tsukuba

• HIGASHIZONO Yuta

  Plasma Research Center, University of Tsukuba

• KOBAYASHI Shinji

  Institute of Advanced Energy, Kyoto University

• ISLAM Khairul Md.

  Plasma Research Center, University of Tsukuba

• KUBOTA Yuusuke

  Plasma Research Center, University of Tsukuba

• YOSHIKAWA Masayuki

  Plasma Research Center, University of Tsukuba

• MISHIMA Yoshiyuki

  Plasma Research Center, University of Tsukuba

• CHO Teruji

  Plasma Research Center, University of Tsukuba

抄録

Visible imaging measurement using a fast camera in conjunction with a gas puff was demonstrated in the GAMMA 10 tandem mirror. In order to image plasma behavior on the periphery, a hydrogen gas puff in the bottom of the vacuum chamber near the GAMMA 10 central-cell was used. Without the gas puff the light emission was not sufficiently bright, and SN ratio is not good. By using the gas puff, the light emission could be clearly observed, and a 5 - 6 kHz vibration of the plasma column was confirmed. This motion is most likely plasma rotation due to the electron drift wave and E_r × B drift. These results show that the fast camera used in conjunction with a gas puff is a promising candidate for the measurement of peripheral plasma behavior even in low-density mirror plasmas.

収録刊行物

• Plasma and Fusion Research

  Plasma and Fusion Research 1 035-035, 2006

  一般社団法人 プラズマ・核融合学会

キーワード

• gas puff imaging
• plasma rotation
• turbulence
• mirror plasma
• GAMMA 10

詳細情報

• CRID: 1390001205253186688
• NII論文ID: 130002058817
• DOI: 10.1585/pfr.1.035
• ISSN: 18806821
• Web Site: http://www.jstage.jst.go.jp/article/pfr/1/0/1_0_035/_pdf
• 本文言語コード: en
• データソース種別:
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