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P. K. Kaw, K. Avinash, R. Srinivasan
Institute for Plasma Research, Bhat, Gandhinagar-382 428, India
Abstract. A spherical tokamak design without external toroidal field coils is
proposed. The tokamak is surrounded by a spheromak shell carrying requisite
force free currents to produce the toroidal field in the core. Such equilibria
are constructed and it is indicated that these equilibria are likely to have
robust ideal and resistive stability. The advantage of this scheme in terms of
a reduced ohmic dissipation is pointed out.
IAEA 2001
