GAS-DISCHARGE SOURCE OF ELECTRONS Russian patent published in 2023 - IPC H01J37/77 

FIELD: plasma technology.
SUBSTANCE: invention relates specifically to gas-discharge electron sources, and can be used in electric jet engines, including those operating on reactive gases, to neutralize the ion flow, as well as in vacuum-plasma technology for surface treatment of various materials and application functional coatings using reactive gases, as well as an autonomously functioning plasma source. The gas-discharge electron source contains a cathode made in the form of a hollow cylinder made of non-magnetic material with an end wall on which there is a hole for supplying working gas, an insulator and an anode with an outlet, which form a closed gas-discharge cavity, a magnetic field source that forms a magnetic field in the cathode cavity , the lines of force of which have a component parallel to the side wall of the cylinder, and a power source of an independent gas discharge. A partition with a through hole is installed in the gas-discharge cavity.

EFFECT: technical result is an increase in resource, a decrease in energy consumption and resistance to reactive working gases.

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