WHISTLER EMISSION BY ELECTRON-BEAMS

Experimental and theoretical investigation of whistler waves produced in the interaction of a density modulated electron beam with a magneti zed plasma are presented for the conditions of active space experiment s in the Earth ionosphere as well as for the case of overdense laborat ory plasmas. Structures of the electromagnetic fields far and near the beam, efficiency of the beam modulation, emitted power are examined a s well as conditions for an undistorted registration of the whistler s ignals by remote receivers in space.