Finite-beta tearing-mode stability for tokamak discharges with current-profile control
In recent years, significant progress on diagnostics, equilibrium reconstruction and current-drive systems have allowed some degree of current-profile control in tokamak experiments. This led to promising prospects for attractive reactor concepts based on the so-called advanced scenarios. Nevertheless, stability analyses for such scenarios have been restricted to ballooning, kink and interchange modes. Given the experience of conventional scenarios, where the long-pulse limit is set by finite-beta tearing modes significantly below the Troyon limit, it appears interesting to consider this point. This problem is briefly discussed in the present paper, in the context of the lower-hybrid-enhanced discharges of Tore Supra.
Bibliographic Reference: Report: EUR-CEA-FC-1615 EN (1997) 8pp.
Availability: Available from Association Euratom-CEA, CEN Cadarache, 13108 Saint-Paul-lez-Durance (FR)
Record Number: 199810180 / Last updated on: 1998-02-12
Original language: en
Available languages: en