On the Linear and Quasi – Linear Theory of Thermonuclear Instabilities in a Tokamak Reactor

A unified general theory is formulated for linear and quasi-linear phenomena associated with thermonuclear instabilities in axisymmetric toroidal systems. The theory takes into account processes caused by the resonant interaction between waves and passing as well as trapped α-particles. It includes finite Larmor-radius effects, bounce effects, and effects associated with the radial excursions of the particle guiding centres as well as the particle orbit drift along the large torus azimuth.