Evaluation of local magnetic field fluctuation in a toroidal plasma with heavy ion beam probe

A. Fujisawa, A. Shimizu, H. Nakano, S. Ohshima

研究成果: ジャーナルへの寄稿学術誌査読

13 被引用数 (Scopus)

抄録

A method to measure magnetic field fluctuation using a heavy ion beam probe for a toroidal magnetically confined plasma is proposed by providing a mathematical formula to connect the probing beam movement with the change in the magnetic field. The first challenge of the method has been faced in an electron-cyclotron resonance heated plasma in the compact helical system (CHS). The results reveal the existence of three characteristic frequency regimes of the magnetic field fluctuations: a low frequency regime showing a long-distance correlation, an intermediate frequency regime obeying a power law and the turbulence regime. Discussion is held on the degree of the contaminations in the local magnetic field fluctuation that are caused by the magnetic field fluctuations integrated along the beam orbit and the local electric field fluctuations.

本文言語英語
論文番号011
ページ(範囲)845-855
ページ数11
ジャーナルPlasma Physics and Controlled Fusion
49
6
DOI
出版ステータス出版済み - 6月 1 2007
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 原子力エネルギーおよび原子力工学
  • 凝縮系物理学

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