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The transport equations of heavy trace-impurities in a tokamak plasma with strong toroidal rotation have been studied analytically in the collisional regime. It is found that the poloidal asymmetry of the impurity-density, which occurs because of the rotation, brings about a large enhancement of the diffusivity and indeed of the pinch velocity above the conventional Pfirsh-Schlüter values.

Additional information

Authors: ROMANELLI M, JET Joint Undertaking, Abingdon, Oxon (GB);OTTAVIANI M, JET Joint Undertaking, Abingdon, Oxon (GB)
Bibliographic Reference: Report: JET-P(97)45 EN (1997) 8pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon, OX14 3EA (GB)
Record Number: 199810429 / Last updated on: 1998-03-31
Original language: en
Available languages: en