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Abstract

A region of zero current density in the plasma centre has been observed in the advanced tokamak scenarios with off-axis Lower-Hybrid current drive in the JET and JT-60U tokamak experiments. Significantly, the central current density does not become negative although this is expected based on conventional current diffusion. In this paper, it is shown that the zero central current density and the absence of negative central current can be explained by the influence of a resistive kink magnetohydrodynamic instability.

Additional information

Authors: HAWKES N C, UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxon (GB);HUYSMANS G T A, CEA Cadarache, Saint-Paul-lez-Durance (FR);LITAUDON X, CEA Cadarache, Saint-Paul-lez-Durance (FR);HENDER T C, UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxon (GB)
Bibliographic Reference: Report: EUR-CEA-FC-1717 (2001), pp.10 Published in Physical Review Letters, Vol 87, no. 24 (2001) pp.245002/1-4. Subscribers can access it online, and non-subscribers can order it, at: http://link.aps.org/abstract/PRL/v87/e245002
Record Number: 200114174 / Last updated on: 2002-07-05
Category: PUBLICATION
Original language: en
Available languages: en
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