Plasma and Fusion Research

Volume 11, 2403082 (2016)

Regular Articles

Particle Pinch Model of Passing/Trapped High-Z Impurity with Centrifugal Force Effect
Yusuke SHIMIZU, Takaaki FUJITA, Atsushi OKAMOTO, Hideki ARIMOTO, Nobuhiko HAYASHI1), Kazuo HOSHINO2), Tomohide NAKANO1) and Mitsuru HONDA1)
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
1)
Japan Atomic Energy Agency, 801-1 Mukoyama, Naka 311-0193, Japan
2)
Japan Atomic Energy Agency, 2-166 Omotedate, Obuchi, Rokkasho 039-3212, Japan
(Received 30 November 2015 / Accepted 24 March 2016 / Published 10 June 2016)

Abstract

The inward pinch model for high-Z impurity ions in a toroidally rotating plasma has been improved to take account of trapped particles and the centrifugal force effect. It is found that the PHZ pinch is large for the barely trapped particles and the pinch velocity increases with the rotation velocity as in the original model.

Keywords

tungsten accumulation, toroidal rotation, PHZ pinch, centrifugal force

DOI: 10.1585/pfr.11.2403082

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References

  • [1] T. Nakano, J. Nucl. Mater. 415, S327 (2011).
  • [2] K. Hoshino et al., Nucl. Fusion 51, 083027 (2011).
  • [3] Y. Shimizu et al., Plasma Fusion Res. 10, 3403062 (2015).
  • [4] C. Angioni et al., Nucl. Fusion 54, 083028 (2014).
  • [5] K.L. Wong et al., Phys. Fluids B 1, 545 (1989).
  • [6] K.G. McClements et al., Plasma phys. Control. Fusion 51, 115009 (2009).
  • [7] OPEN-ADAS, http://open.adas.ac.uk/