Magnetic Detachment and Plume Control in Escaping Magnetized Plasma

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Description

The model of two-fluid, axisymmetric, ambipolar magnetized plasma detachment from thruster guide fields is extended to include plasmas with non-zero injection angular velocity profiles. Certain plasma injection angular velocity profiles are shown to narrow the plasma plume, thereby increasing exhaust efficiency. As an example, we consider a magnetic guide field arising from a simple current ring and demonstrate plasma injection schemes that more than double the fraction of useful exhaust aperture area, more than halve the exhaust plume angle, and enhance magnetized plasma detachment.

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611KB

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Fisch, P. F. Schmit and N. J. November 5, 2008.

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The model of two-fluid, axisymmetric, ambipolar magnetized plasma detachment from thruster guide fields is extended to include plasmas with non-zero injection angular velocity profiles. Certain plasma injection angular velocity profiles are shown to narrow the plasma plume, thereby increasing exhaust efficiency. As an example, we consider a magnetic guide field arising from a simple current ring and demonstrate plasma injection schemes that more than double the fraction of useful exhaust aperture area, more than halve the exhaust plume angle, and enhance magnetized plasma detachment.

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611KB

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  • Report No.: PPPL-4362
  • Grant Number: DE-ACO2-76CHO30783
  • DOI: 10.2172/941557 | External Link
  • Office of Scientific & Technical Information Report Number: 941557
  • Archival Resource Key: ark:/67531/metadc893920

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  • November 5, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 7, 2016, 4:48 p.m.

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Fisch, P. F. Schmit and N. J. Magnetic Detachment and Plume Control in Escaping Magnetized Plasma, report, November 5, 2008; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc893920/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.