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Electrostatic thrusters.The current status of research and development programs on electrostatic thrusters is reviewed. Current programs that utilize mercury electron-bombardment thrusters range from 5- to 30-cm in diameter. Recent progress on the 5-cm thruster has emphasized durability, with accelerator time exceeding 6300 hours and total time on the rest of the thruster exceeding 8300 hours. Recent progress on the 30-cm thruster has been outstanding in dished-grid accelerator systems. Ion beams up to 5 amperes have been obtained for short periods with 1000 volts net accelerating potential difference. The cesium electron-bombardment and cesium contact programs are also described.
Document ID
19730028633
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kaufman, H. R.
Reader, P. D.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 7, 2013
Publication Date
November 1, 1972
Subject Category
Propulsion Systems
Report/Patent Number
AIAA PAPER 72-1123
Meeting Information
Meeting: Joint Propulsion Specialist Conference
Location: New Orleans, LA
Country: US
Start Date: November 29, 1972
End Date: December 1, 1972
Sponsors: American Institute of Aeronautics and Astronautics, Society of Automotive Engineers
Accession Number
73A13435
Distribution Limits
Public
Copyright
Other

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