Heaterless hollow cathode
Heaterless hollow cathode
- Neue Suche nach: CONVERSANO RYAN W
- Neue Suche nach: GOEBEL DAN M
- Neue Suche nach: BECATTI GIULIA
- Neue Suche nach: CONVERSANO RYAN W
- Neue Suche nach: GOEBEL DAN M
- Neue Suche nach: BECATTI GIULIA
Systems and methods for providing a heaterless hollow cathode for use in electric propulsion devices is presented. According to one aspect the cathode includes a thermionic emitter having a constricted upstream inlet compared to a downstream outlet of the emitter. The emitter is arranged downstream a hollow cathode tube. Constriction of the upstream inlet is provided by an inner cylindrical hollow space at an upstream region of the emitter having a diameter that is smaller compared to a diameter of an inner cylindrical hollow space at a downstream region of the emitter. A hollow transition region having a varying diameter connects the upstream region to the downstream region. According to another aspect, a ratio of the diameters of the two cylindrical hollow spaces reduces penetration of electric field, and therefore of electric discharge, into the upstream region of the emitter during operation.
Dokumentinformationen
Heaterless hollow cathode
2022-10-25
Patent
Elektronische Ressource
Englisch
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