Accumulation process of high-Z impurity in toroidal rotating tokamak plasma

K. Hoshino, T. Takizuka, T. Nakano

研究成果: Article査読

7 被引用数 (Scopus)

抄録

The accumulation process of high-Z impurity in toroidal rotating tokamak plasma is investigated. A new inward pinch of high-Z impurity due to the ionization/recombination processes is derived using an analytic model. This inward pinch is driven by the large deviation of a drift orbit from a magnetic surface and the resultant variation of the charge state along the drift orbit. The pinch velocity increases with increasing toroidal rotation speed in both the co-direction and the ctr-direction. The inward pinch expected by the analytic model is really observed in the numerical simulation using the IMPGYRO code.

本文言語English
ページ(範囲)386-391
ページ数6
ジャーナルContributions to Plasma Physics
50
3-5
DOI
出版ステータスPublished - 2010 5 1
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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