Axial force imparted by a conical radiofrequency magneto-plasma thruster | Zendy

Christine Charles | Zendy; Kazunori Takahashi | Zendy; R. W. Boswell | Zendy

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Axial force imparted by a conical radiofrequency magneto-plasma thruster

Author(s) -

Christine Charles,

Kazunori Takahashi,

R. W. Boswell

Publication year - 2012

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3694281

Subject(s) - nozzle , conical surface , magnetic field , thrust , plasma , argon , magnetic pressure , atomic physics , materials science , nuclear magnetic resonance , mechanics , physics , thermodynamics , magnetization , nuclear physics , quantum mechanics , composite material

Direct thrust measurements of a low pressure (∼0.133 Pa) conical radiofrequency (rf at 13.56 MHz) argon plasma source show a total axial force of about 5 mN for an effective rf power of 650 W and a maximum magnetic field of 0.018 T, of which a measured value of 2.5 mN is imparted by the magnetic nozzle. A simplified model of thrust including contributions from the electron pressure and from the magnetic field pressure is developed. The magnetic nozzle is modelled as a “physical” nozzle of increasing cross-sectional area.

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