Possibility of constructing a ''warm-coil'' tokamak reactor

This paper examines the possibility of constructing a warm-coil tokamak reactor which, up until now had been viewed without a comprehensive analysis and optimization. Two circumstances are described for comparing the use of warm coils and superconducting coils. The warm-coil estimate has the possibility of cutting the construction costs, primarily through the development of a modular design for the toroidal magnets and installation of the poloidal coils and inductor inside the TF coils. The ohmic loss is estimated in an ignited tokamak. The relation between the magnetic field and the size of the facility depends on the ignition conditions and is determined by the scaling adopted. Several advantages to warm coils are listed