Intrainment current excitation and radiation-resonance interactions

The diagram. where besides quasilinear interactions radiation-resonance interactions not considered before are taken into account, is used to explain entrainment currents in tokamak observed experimentally. It is shown that the resonance region can be widened if they are taken into account, and in this case the gap between the low phase velocity and thermal electron velocity decreases. Besides radiation resonance interactions, caused by a linear resonance, those, which are caused by a nonlinear resonance (induced scattering), are also taken into account. It is shown that contribution of induced scattering to radiation resonance interactions can provide