KINETICS OF THE INTERACTION BETWEEN INTEN SE RADIATION AND PLASMA

For the processes of the interaction between slightly relativistic ele ctrons and intense radiation, the simplified expressions are derived f or the operators of photon-electron collisions provided the relative s hift of the photon frequency during its elastic scattering is not larg e. The collision operator in the electron kinetic equation in this cas e has a form of the Fokker-Planck one. The analogous collision operato r in the photon kinetic equation generalizes the familiar Kompaneyts e quation to the case of an arbitrary optical thickness and arbitrary mo tion of the electron gas in an inhomogeneous medium.