The effectiveness of surface wave generation in the case of generation saturation is considered for the two most typical instances:(1) broad beam fanning of a plasma surface free of the magnetic field; (2) the beam fans a narrow plasma column (the beam and plasma are magnetized). The beam state is described by a nonlinear kinetic equation, and the plasma remains a linear dispersing medium. It is shown that the use of plasma fanning beams promotes marked increases in generation effective - ness.
Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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