Gyro instruments with formed magnetistatic field on the cyclotron frequency harmonics

Features of instruments with electron-wave interaction without grouping are described. Certain peniotron variants and a new instrument called peniomagtron, which electromagnetic system selectively supports one of whispering gallery modes and represents a magnetron waveguide, are considered. It is shown that in the mode of particle motion along large diameter orbits both in nonrelativistic and in relativistic case efficient operation high cyclotron frequency harmonics with about 50% electron efficiency, is possible. Results of energy balance computation and example of rational selection of instrument parameters under operation on the tenth gyroharmonics are given. 40 refs.; 13 figs