Nonquasineutrality and electrostatic model of turbulent heat transfer in tokamaks

Demand for strong nonequilibrium state of plasma in a tokamak is shown to define unambiguously the evolution level of microturbulence and the value of nonquasineutrality parameter. Factor of transverse thermal conductivity is determined to depend on voltage across tokamak bypass, on the magnetic field shear, on the factor of stability margin. Self-congruent profiles of plasma pinch parameters and thermal conductivity factor were determined on the basis of stability of tokamak pinch as to the oscillation modes. The thermal conductivity is determined to increase proportionally to r3 at the pinch periphery