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The variable magnetic baffle as a control device for Kaufman thrusters.The variable magnetic baffle described in this paper aids in control of electron flow from the hollow cathode plasma into the main discharge region by augmenting the fringe magnetic field which impedes this electron flow in conventionally baffled Kaufman thrusters. A passive, low loss, and automatic control device is obtained by using the discharge current to excite the control winding. Used in conjunction with typical thruster control loops, stable operation has been obtained over a 10:1 throttling range with a 30 cm thruster. Discharge ignition and overcurrent recycling is also facilitated through use of this device in a permanent magnet thruster.
Document ID
19720045283
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Poeschel, R. L. (Hughes Research Laboratories Malibu, Calif., United States)
Date Acquired
August 6, 2013
Publication Date
April 1, 1972
Subject Category
Propulsion Systems
Report/Patent Number
AIAA PAPER 72-488
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Electric Propulsion Conference
Location: Bethesda, MD
Start Date: April 17, 1972
End Date: April 19, 1972
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
72A28949
Funding Number(s)
CONTRACT_GRANT: NAS3-14140
Distribution Limits
Public
Copyright
Other

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