Publication: Measurement of anisotropic plasma properties along the magnetic nozzle expansion of an electron cyclotron resonance thruster
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2017
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Abstract
This work presents experimental measurements along the magnetized plume of the ECR thruster developed by ONERA. Langmuir probes are used to determine the electron energy probability function (eepf) at different axial positions, revealing the non-local character of the distributions. The second part of the paper details a combined diagnostics of non-intrusive diamagnetic loop measurements and laser induced fluorescence to estimate the perpendicular electron temperature inside the plasma source. Averaged perpendicular electron pressure, plasma density, ion velocity at the exit plane and perpendicular electron temperature are determined as functions of the mass flow rate.
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Proceeding of: 35th International Electric Propulsion Conference (IEPC), October 8-12 2017, Atlanta, Georgia, USA
Keywords
Anisotropic plasma properties, Magnetic nozzle expansion, Electron cyclotron resonance thruster, ECR thruster
Bibliographic citation
35th International Electric Propulsion Conference (IEPC), Georgia Institute of Technology, October 8-12 2017, Atlanta, Georgia, 10 p.