Electron-bombardment ion sources

An electron-bombardment ion source includes a chamber into which a propellant is introduced. The propellant is ionized by means of electrons drawn toward an anode from a cathode. At one end of the chamber is an apertured screen followed by an aligned apertured grid. The grid is maintained at a poten...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	READER, PAUL D, KAUFMAN, HAROLD R
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDEDFOR PRODUCING MECHANICAL POWER WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An electron-bombardment ion source includes a chamber into which a propellant is introduced. The propellant is ionized by means of electrons drawn toward an anode from a cathode. At one end of the chamber is an apertured screen followed by an aligned apertured grid. The grid is maintained at a potential that accelerates the ions out of the chamber through the screen and the grid and past a space-charge-neutralizing cathode. A resistor is connected between the grid and the neutralizing cathode in order to maintain the latter at a positive potential relative to the potential on the grid. A system ground preferably is connected to the junction between the resistor and the neutralizing cathode but, alternatively, may be connected between the grid and the resistor.