FIELD: physics.
SUBSTANCE: invention relates to beam engineering and can be used to compensate (neutralise) for spatial charge of a beam of positive ions of electro-jet engines, particularly for use in propulsion devices of micro- and nanosatellites. The method of neutralising spatial charge of an ion stream of an electro-jet propulsion device by emitting electrons through multiple autoemission sources. Sources are placed around each of the electro-jet engines of said device. Emission currents of separate autoemission sources or groups of said multiple autoemission sources are controlled independent of each other.
EFFECT: reduced consumption the working medium of an electro-jet engine, including a multimode electro-jet engine or a multi-engine apparatus, minimum time for switching to neutralisation operating mode and fast switching of electron current according to the operating mode of said electro-jet engine, optimising transfer of electrons into the neutralisation region in order to reduce divergence of the ion beam or deviation thereof, thereby changing the direction of ion thrust.
6 cl
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Authors
Dates
2014-06-20—Published
2012-08-28—Filed