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A Concept for Directly Coupled Pulsed Electromagnetic Acceleration of PlasmasPlasma jets with high momentum flux density are required for a variety of applications in propulsion research. Methods of producing these plasma jets are being investigated at NASA Marshall Space Flight Center. The experimental goal in the immediate future is to develop plasma accelerators which are capable of producing plasma jets with momentum flux density represented by velocities up to 200 km/s and ion density up to 10(exp 24) per cu m, with sufficient precision and reproducibility in their properties, and with sufficiently high efficiency. The jets must be sufficiently focused to allow them to be transported over several meters. A plasma accelerator concept is presented that might be able to meet these requirements. It is a self-switching, shaped coaxial pulsed plasma thruster, with focusing of the plasma flow by shaping muzzle current distribution as in plasma focus devices, and by mechanical tapering of the gun walls. Some 2-D MHD modeling in support of the conceptual design will be presented.
Document ID
20020067447
Document Type
Conference Paper
Authors
Thio, Y.C. Francis (NASA Marshall Space Flight Center Huntsville, AL United States)
Cassibry, Jason T. (NASA Marshall Space Flight Center Huntsville, AL United States)
Eskridge, Richard (NASA Marshall Space Flight Center Huntsville, AL United States)
Smith, James (NASA Marshall Space Flight Center Huntsville, AL United States)
Wu, S. T. (Alabama Univ. Huntsville, AL United States)
Rodgers, Stephen L.
Date Acquired
August 20, 2013
Publication Date
November 20, 2001
Subject Category
Plasma Physics
Meeting Information
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit(Indianapolis, IN)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.