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Particle and field measurements on two J-series 30-centimeter thrustersAn experimental investigation under complete computer control of the characteristics of particles and fields emanating from mercury bombardment ion thrusters (J-series, 30 cm diameter), operating independently and simultaneously, is discussed. Results show that the flux rate of sputtered metal atoms leaving a single thruster has been determined and the data is in agreement with previous test results. The flux rate and energies of ions leaving single and two-thruster configurations have been established for a variety of beam current levels and combinations involving the two thrusters, and the data are sufficient to establish upper bounds. Floating potential measurements made in the near vicinity of the thrusters indicate that the fields are weak, plus or minus a few volts. The tests may be significant for the Solar Electric Propulsion System (SEPS) planners.
Document ID
19810053668
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lathem, W. C.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 11, 2013
Publication Date
April 1, 1981
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA PAPER 81-0728
Meeting Information
Meeting: International Electric Propulsion Conference
Location: Las Vegas, NV
Country: US
Start Date: April 21, 1981
End Date: April 23, 1981
Sponsors: Japan Society for Aeronautical and Space Sciences, AIAA, DGLR
Accession Number
81A38072
Distribution Limits
Public
Copyright
Other

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