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Simulations of Nonuniform Electron Beams in a Gyrotron Electron-Optical System

New results on influence of emission inhomogeneity on quality of the electron beam formed in a gyrotron electron-optical system were obtained using the emission current distributions measured for different cathodes in the 74.2 GHz, 100 kW gyrotron. The maximum level of emission inhomogeneity acceptable for effective operation of gyrotrons is discussed.