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High-thrust and low-power operation of a 30-cm-diameter mercury ion thrusterAn investigation of a 30-cm-diameter mercury ion thruster designed for high-thrust and low-power operation is described. Experimental results are presented which indicate that good performance and long lifetime are achieved by using a boundary magnetic field arrangement to confine the ionizing electrons. Details of advanced ion-optics designs are discussed, and performance measurements obtained with an advanced two-grid ion-optics assembly are presented. Scaling of the state-of-the-art hollow cathode for higher emission-current capability is described, and performance and lifetime measurements are presented for the scaled cathode.
Document ID
19810048495
Document Type
Conference Paper
Authors
Beattie, J. R. (Hughes Research Labs. Malibu, CA, United States)
Kami, S. (Hughes Research Laboratories Malibu, Calif., United States)
Date Acquired
August 11, 2013
Publication Date
April 1, 1981
Subject Category
SPACECRAFT PROPULSION AND POWER
Report/Patent Number
AIAA PAPER 81-0718
Meeting Information
International Electric Propulsion Conference(Las Vegas, NV)
Funding Number(s)
CONTRACT_GRANT: NAS3-21943
Distribution Limits
Public
Copyright
Other